To increase the water solubility of resorcinol or salicylic acid, 3m naoh is used to dissolve them. the reason why they dissolve better in NAOH than in water is because resorcinol as well as salicylic acid have some measures of acidic hydrogens and so they can be ionized inside of NaOH.
How does salicylic acid dissolve in water?
Salicylic acid must be transformed into salicylate because it is insufficiently soluble in water at room temperature to produce the composition you want.
Note that Salicylic acid can be used to accomplish this by reacting with sodium bicarbonate (baking soda) in water; the salicylic acid will dissolve during the reaction.
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This is urban 67 meters. ms french bikes 3km. who biked farther?.
Answer:
Ms French
Explanation:
1km is equal to 1000m so ms French biked further
BRIANLEST AND 30 POINTS
A student measures the density of a piece of plastic to be 0.90 g/ml. However, the accepted value for the density of that type of plastic is 1.1 g/ml. What is the percent error in her measurements?
The percentage error in the measurement of the student is 18.18%
How do I determine the percentage error?We'll begin by obtainig the absolut error. This can b eobtained as follow:
Measured value = 0.90 g/mLAccepted value = 1.1 g/mLAbsolute error = ?Absolute error = accepted value - measured value
Absolute error = 1.1 - 0.90
Absolute error = 0.2 g/mL
Finally, we shall determine the percentage error. This can be obatined as follow:
Accepted value = 1.1 g/mLAbsolute error = 0.2 g/mLPercentage error =?Percentage error = (Absolute error / accepted value) × 100
Percentage error = (0.2 / 1.1) × 100
Percentage error = 18.18%
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rom the following choices, identify those that are the inputs and outputs of the light reactions. (recall that inputs to chemical reactions are modified over the course of the reaction as they are converted into products. in other words, if something is required for a reaction to occur, and it does not remain in its original form when the reaction is complete, it is an input.)
In light reactions,
Input: light, water, NADP+, ADP
Output: O₂, ATP, NADPH
Not input or output: glucose, CO₂,G₃P
What is light reactions?
The energy storage molecule ATP and the reduced electron carrier NADPH are produced by the light-dependent reactions often called as light reaction using light energy, which is required for the subsequent stage of photosynthesis. Light reactions in plants occur in the thylakoid membranes of organelles referred to as chloroplasts.
The energy of sunshine is used in the light reactions to oxidize water (the electron donor) to O2, transfer the electrons to NADP+, and produce NADPH. ADP is transformed into ATP using some light energy. The Calvin cycle, which generates sugar, is then driven by the NADPH and ATP created.
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Complete question
From the following choices, identify those that are the inputs and outputs of the light reactions. (Recall that inputs to chemical reactions are modified over the course of the reaction as they are converted into products. In other words, if something is required for a reaction to occur, and it does not remain in its original form when the reaction is complete, it is an input.)
Choices are: light, water, NADP+, ADP, O₂, ATP, NADPH, glucose, CO₂,G₃P
Drag each item to the appropriate bin. If the item is not an input to or an output from the light reactions, drag it to the "not input or output" bin.
8016
5. Write a short caption beside each picture to describe the process of covalent
bonding.
Hydrogen
Oxygen
Hydrogen
Water molecule (H₂O)
Two hydrogen atoms and one
oxygen atom are near
This hydrogen molecule (H2) covalent bonding model begins with 2 separate hydrogen atoms.
Hydrogen Molecule (H2)The simplest molecule that can exist is a hydrogen molecule. Electrostatic forces hold its two protons and two electrons together. The assemblage can exist in several energy levels, just as atomic hydrogen. Hydrogen atoms are never truly separate to begin with. They are constantly connected to something else. This model omits the hydrogen atoms rupturing their bonds with other atoms to simplify the process. It only concentrates on how two hydrogen atoms create covalent bonds with one another. The electrons of two hydrogen atoms are drawn to the proton of the other atom when they are sufficiently close to one another.The atoms share electrons because there is space in their outer energy levels for electrons and a strong enough attraction between them. Thus, a covalent bond is created.To learn more about Hydrogen Molecule refer:
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What do substances that conduct electricity once they are dissolved have in common?
Answer:
They are ionic compounds.
Explanation:
Ionic compounds are made from a metal element and a nonmetal element. Ionic compounds have bonds that are the transfer of their electrons. They consist of a positively charged and negative charged ion.
When ionic compounds are dissolved in water, this means that the bonds from the compound are broken and now they will be bonding with the water molecules in water.
The electricity in the solution happens when these ions are moving around freely in water.
we want to design an implant step which will implant phosphorus ions through 50nm of sio 2 into an underlying silicon substrate such that the peak concentration in the substrate is 1 × 10 17 cm − 3 and the concentration at the sio 2 /si interface is 1 × 10 15 cm − 3 . what energy and dose would you use to achieve these conditions. assume that the stopping power of sio 2 is the same as that of silicon. neglect channeling effects.
According to the Gaussian distribution model, 8.8 x [tex]10^{11}[/tex][tex]cm^{-2}[/tex] energy is required to design the implant setup.
A probabilistic model called a "Gaussian mixture model" posits that all of the data points were produced by combining a limited number of Gaussian distributions with unknown parameters.
First, the mean and covariance functions of a Gaussian distribution model are the only variables that matter. Due to the fact that just the first and second order moments of the process need to be specified, this attribute makes model fitting easier. Second, it's not too difficult to solve the prediction problem using Gaussian distribution model.
Given:
At z = 50nm
C (50nm) = 1 x [tex]10^{16} cm^{-3}[/tex]
C (50nm) / Cp = 0.1
Calculations:
Using the Gaussian distribution model, the concentration as a function of depth can be related to peak concentration, Cp:
[tex]Cz = Cp * exp ( - \frac{(z - Rp)^2}{2\Delta R^2p} )[/tex]
Taking log on both sides,
[tex]\sqrt{2ln10}[/tex] = Rp – 0.05 / ΔRp = 2.416
To find an energy that gives Rp – 2.15 ΔRp = 0.05µm
(By trial and error method)
100 Kev Rp = 0.125, ΔRp = 0.035, Rp – 2.15 ΔRp = 0.048µm
120 Kev Rp = 0.15, ΔRp = 0.040, Rp – 2.15 ΔRp = 0.064µm
Interpolating linearly between 100 and 120 Kev gives about 103Kev.
At this energy, ΔRp = 0.035 µm
Therefore,
[tex]Q = \sqrt{2\pi } \Delta Rp Cp[/tex] = 8.8 x [tex]10^{11}[/tex][tex]cm^{-2}[/tex]
Result:
8.8 x [tex]10^{11}[/tex][tex]cm^{-2}[/tex] energy is required.
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What do you think is happening to the soda and air in the can?
The soda and air will bubble, increasing the chances of an explosion.
Carbonation in soda is made up of carbon dioxide or CO2 bubbles. Carbonated beverages are injected with this colorless and odorless gas under high pressure during manufacture until the liquid is supersaturated with gas. Individuals determined, at the discretion of the Federal Aviation Surgeon, to have a static or non-progressive disqualifying condition.
In soda ash, the dispersed phase is a gas and the dispersion medium is a liquid. Soda ash is an example of a gas that dissolves in a liquid. Shaking the can introduces many small air bubbles into the liquid, so the dissolved gas is more likely to combine with existing air bubbles and evaporate rather than form new air bubbles. By avoiding the difficult step of shaking and frothing the soda, the gas can escape faster creating more fizz.
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Look at the photo below. It shows examples of heat transfer by conduction, convection, and radiation. Indicate which type of heat transfer is happening next to each letter.
C is conduction
a is convention
b is radiation
describe dehydration synthesis. in your answer, use starch synthesis as an example. be sure your answer includes the roles of starch, glucose, polymers, monomers, water, and covalent bonds in the process.
The chemical process known as dehydration synthesis, also known as a condensation reaction, involves the covalent bonding of two molecules to create a new molecule while simultaneously releasing a water molecule.
Complex carbohydrates, proteins, DNA, and RNA are just a few of the molecules that are formed via dehydration synthesis processes and are crucial to human health.
Dehydration synthesis forms covalent bonds between sugar molecules. The hydroxyl (-OH) group from one reactant joins with the hydrogen atom from the other to generate water throughout the reaction, while the leftover oxygen forms a glycosidic bond that binds the two molecules together. Repeated dehydration synthesis of individual glucose molecules (monomers) can result in the formation of a polymer, which is a long chain or branched chain structure.
Dehydration synthesis processes, in which one monomer establishes a covalent connection to another monomer (or expanding chain of monomers), release a water molecule in the process, are frequently used to create large biological molecules. Dehydration stands for the loss of the water molecule and synthesis for the development of a new bond, making it easy to recall what occurs.
The methods through which monomers can combine to produce polymers are quite diverse. For instance, starch, cellulose, and glycogen are all made up of glucose monomers. These three polysaccharides, which are categorized as carbohydrates, were created as a result of several glucose monomer-to-glucose dehydration synthesis processes. These three distinct polysaccharides, however, have varied characteristics and functions because of the way that glucose monomers combine, particularly the positions of the covalent connections between linked monomers and the orientation (stereochemistry) of the covalent bonds.
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the element calcium forms a with the charge fill in the blank 2. the symbol for this ion is , and the name is fill in the blank 4 ion. the number of electrons in this ion is .
The element calcium forms a cation with the charge +2. The symbol for this ion is [tex]Ca^{+2}[/tex], and the name is calcium ion. The number of electrons in this ion is 18.
Calcium is present in the second column of the periodic table with symbol Ca.
The number of electrons in this element are 20.
The electronic configuration of calcium is [Ne] 3s² 3p⁶[tex]4s^{2}[/tex] which shows that it has only two electron in its outermost shell.
Being an alkaline earth metal, calcium forms ions by the loss of two electron in the outermost shell.
Neutral calcium has 20 electrons, however, after the loss of two valence electrons it becomes a cation i.e. [tex]Ca^{+2}[/tex]
Since its easy for calcium to lose two outermost electron instead of getting 6 more electrons to achieve octet state.
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Identify: What type of eclipse is shown in the
diagram?
Answer: a annular eclipse
Explanation:
This is a chemical reaction for the decomposition of carbon acid into water and carbon dioxide: h2co3 h2o+co2 how does the reaction support the law of conservation of mass?
The above reaction that decomposes hydrogen carbonate to water and carbon dioxide supports the law of conservation of mass because the number of moles of the reactants equates that of the products.
What is the law of conservation of mass?The law of conservation of mass states that the mass of a substance can neither be created nor destroyed.
In a chemical reaction that involves the changing of substances called reactants to other substances called products, the law of conservation of mass explains that the amount of the reactants must be the same as the amount of products.
According to this question, the decomposition reaction of carbon acid into water and carbon dioxide is given as follows: H₂CO₃ → H₂O + CO₂
As observed in the above chemical equation, the amount of each element on both sides of the equation is the same.
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how many liters of a 5.5% ( m/v ) glucose solution would you need to obtain 75 g of glucose? express your answer using two significant figures.
A total of 1363.63 liters volume of the 5.5% (m/v) glucose solution would be needed to obtain 75 grams of glucose from it.
The amount of glucose required is 75 gram.
The concentration of the solution that is provided to uses 5.5% mass by volume solution.
It means that one litre of the solution will contain 5.5% by mass concentration of glucose and it.
So, using the percentage formula,
Percentage = mass required/volume×100
Now, putting all the values accordingly,
5.5 = 75/V × 100
V is the volume of the solution required,
V = 1363.63 Litres.
So, a total 1363.63 liters of the 5.5% mass by volume glucose solution will be required in this case.
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URGENT!!
please help me figure this out :)
The variables of the ideal gas equation and their units of measurement are as follows:
P = pressure; atm, bar, mmHgV =volume of the gas; L, dm³ n = number of moles; molesT = temperature of the gas; KR = molar gas constant; L.Pa/K/molWhat is the formula of the ideal gas equation?The ideal gas equation is an equation that shows the relationship between the four parameters used in gas measurements.
The four variables are:
volumepressuretemperaturenumber of molesThe ideal gas equation is given below:
PV = nRT
where:
P is the pressure of the gasV is the volume of the gas n is the number of moles of the gasT is the temperature of the gasR is the molar gas constantLearn more about ideal gas equation at: https://brainly.com/question/12873752
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Consider the sn2 reaction between 1‑bromo‑2‑methylpropane and methoxide. Add curved arrows to the starting materials to indicate the flow of electrons. Draw the product species to show the balanced equation, including nonbonding electrons and formal charges.
1-bromo-2-methylpropane undergoes an Sn2 reaction with the methoxide to yield 1-methoxy-2-methylpropane (isobutyl methyl ether) and the bromide ion. Please see the reaction mechanism shown in the attached material.
Alkyl halides are excellent electrophiles because of the polar carbon-halogen bond that provides both the electrophilic carbon atom and the excellent leaving group in the form of the halide ion. When attacked by a nucleophile (such as the methoxide ion), they undergo an Sn2 reaction (bimolecular nucleophilic substitution).
The reaction mechanism of an Sn2 reaction consists of a single phase: the simultaneous attack by the nucleophile and the abstraction of the leaving group. This process implies that there is a transition state that contains a quasi-pentavalent carbon atom, as one bond is forming and the other is being dissolved.
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acid flux is designed to be used on nonelectrical metal joints such as radiators and must be removed after the soldering process so that the joint does not corrode.
It is true that acid flux is used on non-electrical metal joints, such as radiators but need to be removed so that the joint does not corrode after soldering.
Acid flux must be removed after soldering in order to prevent corrosion of the junction and is intended to be used on non-electrical metal connections, such as radiators.
A substance called acid soldering flux is applied to the joint between two pieces of metal to clean and shield it.
Fluxing achieves three objectives: it lessens oxidation, enhances electrical contact, and promotes uniform solder flow. Flux helps eliminate oxidation from the electrical lead you are soldering and blocks airflow to the lead, preventing additional oxidation.
Water-soluble flux is another name for organic acid flux. These organic acids, including citric, lactic, and stearic acid, are used to make this sort of flux. After that, organic solvents like alcohol or isopropyl are added to the acids. Metal oxides can be removed more successfully using organic acid flux.
As a result, it is accurate to say that acid flux must be removed after soldering in order to prevent corrosion of the joint on non-electrical metal components like radiators.
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Based on the graph below, what is the most likely explanation for what happened halfway through year 15?
A graph with Years on the x-axis from 14 to 16 and Rabbits on the y-axis from 0 to 400, by hundreds. The line begins above 400, drops to 350 at year 14, increases above 400 and drops to below 350 at year 15, increases to over 400 and drops to 200 at year 16.
a.
a hot summer
b.
a harsh winter
c.
a sharp increase in available land
d.
a sharp decrease in available land
ANsWER is D
The most likely explanation for what happened halfway through year 15 is D. a sharp decrease in available land.
What is the most likely explanation for what happened?The term "population" refers to the average number of distinct residents in a particular area or region across time. They are individuals who are part of the same class of creatures. Halfway through year 15, the amount of land available begins to rapidly decline.
Beginning above 400, the line increases above 400 and declines below 350 at year 14, increases over 400 and rises to over 400 and drops to 200 at year 16, and so on.
Due to unfavorable weather and a lack of food, the number of rabbits drastically decreases during the cold winters and scorching summers. The population grows when the conditions are good, such as in the spring and summer, and the amount of land accessible shrinks as a result. As a result, there will be a dramatic drop in the amount of land that is available.
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Question 1
1 pts
An initial test found the metal had a melting point of 2,286 Fahrenheit. Convert the
temperature into Celsius. (C-(F-32)/1.8).
Convert the temperature into Celsius from Fahrenheit is C = 1252.22°C
Equation :To convert Fahrenheit into Celsius we need to go through some simple steps :
C = (2286 - 32) 5 / 9
C = 2254 x 5 / 9
C = 1252.22°C
What is temperature ?The average kinetic energy of the particles in an object is measured by its temperature. The velocity of these particles likewise increases as the temperature rises. A thermometer or a calorimeter is used to determine the temperature. The direction of heat transfer when two bodies with different temperatures are kept in touch depends on the temperature. The kelvin is the SI unit (K).
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an ionic compound contains only a metal, m, and bromine. if analysis indicates that a 3.66 g sample of the compound contains 2.14 g of m, what mass of br in g is contained in 468 g of the mineral?
An ionic compound contains only a metal, m, and bromine. if analysis indicates that a 3.66 g sample of the compound contains 2.14 g of m then mass of br in g is contained in 468 g of the mineral is 273.63g
Ionic compound means a chemical compound composed of ions held together by electrostatic forces termed ionic bonding
Here given data is 3.66 g sample and in that 2.14 g of m and 468 g have to find mass of br = ?
So, m₁/m₂ = 3.66 g/2.14 g, w₁/w₂ = 468 g/w₂
Cross multiply this equation then
w₂×3.66 g/2.14 g×468 g
w₂ = 2.14 g×468 g/3.66 g =273.63g
w₂ = 273.63g
Mass of br in g is contained in 468 g of the mineral is 273.63g
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how could you identify a monounsaturated fatty acid by looking at the structure of its chain? a. four or more carbon atoms in the chain have no hydrogen atoms attached. b. one double bond would be present. c. the chain contains multiple missing carbon atoms. d. the carbon chain is more than one-inch long. e. every carbon atom in the chain has a hydrogen atom attached.
We can identify a monounsaturated fatty acid by looking at the structure of its chain as:
b. one double bond would be present
Monounsaturated fat has only one double bond in its structure. This help reduce bad cholesterol levels in blood which lowers risk of heart disease and stroke. They also provide nutrients that help in developing and maintaining body's cells.
Monounsaturated fatty acids are acids having a single double bond, they have two hydrogen atoms deficit, and their two carbon atoms in the structure are connected by a double bond.
Monounsaturated fats are fat molecules that have one unsaturated carbon bond in the molecule. Oils that have monounsaturated fats are liquid at room temperature but start to turn solid when chilled such as canola oil and olive oil. Polyunsaturated fats contains two or more double bonds in its structure.
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Explain the term ionic lattice.
Answer:
Ionic lattice is a Gaint structure where metal and non-metal is ionicly bonded by electrostatic attractions between the ions. This structure has strong intermolecular forces which is why the ionic lattice is in form of hard crystals.
Explanation:
If you need explanation don't hesitate to ask.
Answer:
An ionic compound is a giant structure of ions, the ions have a regular, repeating arrangement called an ionic lattice.
Below is a list of some substances and their symbols.
Oxygen O
Sodium Chloride NaCl
Gold Au
Neon Ne
How many of these substances are an example of an element?
Answer:
3 of the 4 are elements
Explanation:
An element can be found on the periodic table, and are only composed of one type of atom. For example, carbon is an element because you can find it on the periodic table. Fire isn't an element because you can't find it on the periodic table. A short-cut to see if something is an element is to look at the number of capital letters in the formula. If it only has one capital letter, it is an element. If it has two or more, it is a compound. This works because elements always have only one capitalized letter. For example, Ne has a capitalized N. O has a capitalized O. This only works if you are given the molecular formula and not the name, so looking at the periodic table is the best thing to do. Oxygen is an element, Sodium chloride is a compound, Gold is an element, and Neon is an element
Can you explain question 23 please
In regards to the question, it can be said that 25.7 g of solid methanol must be heated to its melting point to reach a temperature of
Q=2.6kJ
From the query, we learn
Determine the amount of heat needed to completely melt 25.7 g of solid methanol at its melting point.
In general, the mathematical formula for heat is
Q=N*u
Where
Methanol has a mass of 32.04g/mol.
Methanol's molar heat of fusion is 3200 J/mol.
How many moles are in 25.7g?
frac = 25.7g 32.04
n=0.8mol
Hence
at its melting point, 25.7 g of solid methanol needs to be heated to a temperature of
Q=0.8*3.2
Q=2.6kJ
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BRAINLEST If I were to change the 4 (4H2O) in the above problem, to a 2, what would happen to the amount of hydrogen and oxygen present?
Answer:
i didn't understand the question properly but i think the answer will be that amount of hydrogen will decrease while amount of oxygen will be same
plsss mark as brainliest
Balance the following chemical reaction:
Al2(SO4)3 (aq) + K3PO4 (aq) → AIPO4 (S) + K2SO4 (aq)
Answer:
Al2(SO4)3 + 2 K3PO4 → 2 AlPO4 + 3 K2SO4
Explanation:
The balanced chemical equation for the given chemical reaction is Al₂(SO₄)₃ + 2 K₃PO₄[tex]\rightarrow[/tex] 2 AlPO₄ + 3 K₂SO₄.
What is chemical equation?Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .
The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.
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classify the indicated alkenes in terms of e/z stereoisomer configurations. an alkene a has four substituents. the alkene is placed horizontally. on the top left is c h 2 o h and on the top right is h. on the bottom left is an aldehyde and on the bottom right is o c h 3. the stereochemistry of alkene a can be classified as: neither z e a 6 membered ring has a hydroxy group on carbon 1. carbon 3 is an s p 2 carbon and bonded to another alkene alkene carbon. the other alkene carbon is bonded to a hydrogen and a methyl. the methyl is on the side opposite to carbon 2. the stereoche
The indicate alkanes in terms of e/z stereoisomer configuration is classified.
What is stereoisomer classification?
stereoisomer are the molecule that have the same molecular formula and sequence of bonded atoms.
It have chemical bond but they have different spital arrangments. Stereoisomer have two types
Configurational and conformational.
Sol-
stereoisomer of alkanes A is Z higher priority in each carbon oriented.
Thus the stereochemisty of alkanes C can be classified as Z.
And the stereochemisty of alkanes D is classified as non of either as per the question.
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Base your answers to questions 1 and 2 on
the diagram below, which represents a solid material
of uniform composition.
2.0 cm
Density-2.7 g/cm³
-20 cm-
We
1. The mass of this piece of material is approximately
A) 32 g
Q4.4g
X) less
-3.0 cm
2. When this material is placed in a container of water, i
sinks to the bottom of the container. Compared to the
density of water, the density of this material is
B) greater
the same
B) 0.23 g
9.3 g
Answer:
A. 32 g
Explanation:
Density = 2.7 g/cm3
Volume = 2 x 2 x 3 = 12 cm3
Mass = dV = 2.7 x 12 = 32.4 g or 32 g
five structural isomers, or constitutional isomers, have the formula c6h14 . draw the indicated isomers, grouped by number of carbon atoms in the main chain.
The first component is a six-carbon linear structure. Then we'll need to add a methyl group to a five-carbon linear structure.
Constitutional isomers:
This methyl group can be linked to either carbon 2 or carbon 3 in the carbon chain. Finally, we can make a four-carbon linear structure by adding two methyl groups. This addition can be done with carbon 2 alone or with carbon 2 and carbon 3 together.
The constitutional isomers have the same chemical formula, but their atom connections are different. Chain isomers, position isomers, and functional group isomers are the three forms of constitutional isomers.
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The air pressure in a tank is measured using an inclined manometer whose arm is inclined 45 degree from the horizontal line. The densities of the air and water are 1. 225 kg/m3 and 1000 kg/m3, respectively. Determine the gauge pressure of air in the tank.
The gauge pressure of air in the tank is Pg= 1.076 psi
Gauge pressure (sometimes written as "gauge pressure") is measured relative to the local atmospheric pressure. Gauge pressure is thus zero when the pressure is the same as atmospheric pressure. Gauge pressure is indicated by pg, and is related to absolute pressure as follows: pg = p - pa, where pa is the local atmospheric pressure.
Given these data
Density of air = 1.225 kg/m3
Density of water = 1000 kg/m3
Note that the absolute pressure of air in the tank = 100kpa
Acceleration due to gravity = 9.8 m/s2
P=hρg
100 = h * 1000* 9.8
h = 98m
So replacing the value of h to calculate the atmospheric pressure
P=hρg
P= 98 *1.225*9.8
P= 1176.49
Substitute these values into the formula
Pg= p - pa,
Pg= 1176.49-100
Pg= 1.076 psi
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One mole of iron _____.
has the same mass as one mole of lead.
cannot be compared to lead because it is magnetic.
has less mass than one mole of lead.
has more mass than one mole of lead.
Answer:
One mole of O2 will have approximately the same mass as one mole of methanol (CH3OH).
Recall that: mole = mass/molar mass
Thus, one mole O2 will have a mass of:
mass = mole x molar mass
= 1 x 32
= 32 g
One mole of CH3OH = mass/molar mass
mass = 1 x 32
= 32 g
Hence, 1 mole of O2 will have the same mass (32 g) as 1 mole of CH3OH
As a reminder, the atomic mass of an atom equals the mass of a mole of this atom.
Just so you know, a mole is defined as a quantity of 6.02x10^{23} things.
We know that the atomic mass of Oxygen is 16 so one mole of O2's mass is 16*2=32g.
So I guess we need to figure out something which a mole of will weight 32 g.
You can pick Ethanol which formula is CH3OH.
C has an atomic mass of 12
H has an atomic mass of 1
O has an atomic mass of 16
So one mole of CH3OH weights 12+(3*1)+16+1=32g which is the same amount.
Explanation: