Answer:
.084 M
Explanation:
Molar mass of sucrose = 342.3
The formula to find molarity is moles of solute / liters of solution
Since we need to turn grams to moles for this equation we do 104 / 342.3 = 0.304
Now we can use the equation listed above. .304 / 3.6 = 0.084 M
Is a mixture with the same composition throughout
Answer:
A homogeneous mixture
Explanation:
A homogeneous mixture has the same composition throughout
Jane made this picture to represent a chemical reaction:
which of the following statements best explains the type of chemical reaction represented by Jane's picture?
A: it represents a decomposition reaction because the total mass of the product is less than the mass of the reactant
B: it represents a synthesis reaction because one combined reactant forms multiple products
C: it represents a synthesis reaction because the same atoms are present in the reactants and products
D: it represents a decomposition reaction because one reactant breaks apart and forms two products
Answer:
what does the photo look like
Explanation:
What is the specific heat of a 22.8 g sample of metal that absorbs 1,450 Joules of heat from 21.8 degrees Celsius to 75.0 degrees Celsius?
Answer: The specific heat of given metal is [tex]1.195 J/^{o}C[/tex].
Explanation:
Given: Mass of sample = 22.8 g
Heat energy = 1450 J
Initial temperature = [tex]21.8^{o}C[/tex]
Final temperature = [tex]75^{o}C[/tex]
Formula used to calculate the specific heat is as follows.
[tex]q = m \times C \times (T_{2} - T_{1})[/tex]
where,
q = heat energy
m = mass of substance or sample
C = specific heat
[tex]T_{1}[/tex] = initial temperature
[tex]T_{2}[/tex] = final temperature
Substitute the values into above formula as follows.
[tex]q = m \times C \times (T_{2} - T_{1})\\1450 J = 22.8 g \times C \times (75 - 21.8)^{o}C\\C = \frac{1450 J}{22.8 \times 53.2^{o}C}\\= 1.195 J/^{o}C[/tex]
Thus, we can conclude that the specific heat of given metal is [tex]1.195 J/^{o}C[/tex].
When people respond to questions saying the answer is in an attached link, is it safe?
Answer:
Personally, I believe it is unsafe. When people include a link in their answer, they are breaking the Brainly code, which states that a link to an unknown website is prohibited material.
Explanation:
Balance the following chemical equation by providing the correct coefficients:
[ ]CO+[ ]H2 -> [ ]H2O + [ ]CH4
Carbon Monoxide + Hydrogen gas yields water + methane (CH4)
Answer:
CO + 3H2 -> H20 + CH4 :)) !!
Balance the following chemical equation by providing the correct coefficients:
[ ]N2 + [ ]H2 -> [ ]NH3
Nitrogen + hydrogen produces ammonia (NH3)
Answer:
1 N2 + 3 H2 --> 2 NH3 :))) !!
Please help me with this homework
Which of the following is a correct statement for gases ? All of these.
Gases have a definite shape and volume.
Confined gas exerts a uniform pressure on the walls of its container in all directions.
The volume of gas is equal to the volume of the container holding the gas.
Answer:
B
Explanation:
What happens to iron in a bolt as the bolt rusts?
Iron gets converted from Fe2+ to Fe3+ during rusting. Details about rusting can be found below.
What is rusting?Rusting is the deteriorated state of iron or steel as a result of moisture and oxidation.
Rusting is characterized by a reddish-brown color on the surface of the iron.
Rusting is caused by oxidation of iron II (Fe2+) ion into iron III (Fe3+) ion.
Learn more about iron rusting at: https://brainly.com/question/18376414
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2 Na + Cl2 --> 2 NaCl
What is the mole ratio of sodium to sodium chloride?
Answer: The mole ratio of sodium to sodium chloride 2:2.
Explanation:
As the given reaction equation is as follows.
[tex]2Na + Cl_{2} \rightarrow 2NaCl[/tex]
Here, 2 moles of sodium reacts with 1 mole of [tex]Cl_{2}[/tex] and leads to the formation of 2 moles of NaCl.
This means that 2 moles of sodium gives 2 moles of NaCl on reaction with chlorine.
Hence, the ratio of moles of sodium to sodium chloride is 2:2.
Thus, we can conclude that the mole ratio of sodium to sodium chloride 2:2.
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(Chp.3)
(40) The difference of squares of two numbers is 180. The square of the smaller number is 8 times the larger number. Find
the two numbers.
The difference of squares of two numbers is 180. The square of the smaller number is 8 times the larger number. Find the two numbers.
Solution:-Let the larger number be x
And, the square of the smaller number be 8x
ATQ ,x² − 8x = 180
⇒ x² − 8x − 180 = 0
⇒ x² − (18 − 10)x − 180 = 0
⇒ x² − 18x + 10x − 180 = 0
⇒ x (x − 18) + 10(x − 18) = 0
⇒ (x − 18) (x + 10) = 0
⇒ x − 18 = 0, x + 10 = 0
⇒ x = 18, x = −10
⇒ x = −10, 18
[tex] \therefore [/tex] Either, x = −10 and x = 18
x = 18 (Positive value)
Now, the square of the smaller number = 8x = 8 × 18 = 144
So, the square of the smaller number = [tex]\sqrt{144} [/tex] = 12
The two numbers are 18 and 12. [Answer]How does the structure of Ethane (C2H6) and Propane(C3H8) differ? Are they members of a Homologous series?
Answer:
Ethane & propane are members of same homologous series : alkane which is indicated with Cn H2n+2
Explanation:
water is at 0 degrees celsius if we continue to remove energy from the water what phase changes would occur
Answer:
Solid/freezing
Explanation:
Solid has the least energy of all of the phase changes and the more energy is lost the colder its gets then water turns into a solid called ice hope i helped!
__M+__Q2----->___MQ3
Answer: 2M + 3Q2 -----> 2MQ3
Explanation:
2 Ms either side, and 6 Qs either side
How many rings (energy levels) will an atom with 12 electrons have?
Answer:
3
Explanation:
from the KLMN shell
K has the maximum of 2 electrons
M has the maximum of 8
M has the maximum of 18
so 12 electrons fell on M shell which is the third one
that's all....have fun
A container is filled with helium gas. It has a volume of 2.25 liters and contains 9.00 moles of helium. How many moles of helium could be held in a 1.85 liter container at the same temperature and pressure. *
pb(No3)2(aq) +2KCI(aq)---PbCl2(s)+KNO2(aq). how many grams of PbCl2 solution will react with a 0.46 L of a 0.101m KCI solution
Answer:
6.3986g
Explanation:
The balanced chemical equation of this reaction is as follows:
Pb(NO3)2(aq) + 2KCl (aq) → PbCl2(s) + 2KNO3(aq)
In this equation, 2 moles of KCl solution will produce 1 mole of PbCl2.
To calculate the number of moles of PbCl2 produced, we use the formula:
Molarity = number of moles (n) ÷ volume (V)
0.101 = n/0.46
n = 0.046mol of KCl
If 2 moles of KCl solution will produce 1 mole of PbCl2
Then, 0.046mol of KCl will be react to produce (0.046 × 1/2) of PbCl2
0.046 × 1/2 = 0.023mol of PbCl2
To find the mass of PbCl2 using mole = mass ÷ molar mass
Molar mass of PbCl2 = 207.2 + 35.5(2)
= 207.2 + 71
= 278.2g/mol
0.023 = mass/278.2
mass = 6.3986g
Answer:
Can you help me with other question please
Mg + HCl ➞ MgCl2 + H2
Magnesium reacts with hydrochloric acid. If 7.80 mol HCl reacts, how many grams of MgCl2 will be produced?
Answer: 371 g MgCl2
Explanation:
If an atom of Phosphorous has 17 neutrons, what is its mass number?
a) 31
b) 32
c) 15
D) 17
Explain how the cardiovascular system helps your body function
Answer:
The blood circulatory system (cardiovascular system) delivers nutrients and oxygen to all cells in the body. It consists of the heart and the blood vessels running through the entire body. The arteries carry blood away from the heart; the veins carry it back to the heart.
Explanation:
You're welcome!
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Fractional distilation of liquid air usually produces nitrogen and oxygen as major products . Substance used to remove carbon iv oxide from air before its changed to liquid
Answer:
Caustic soda
Explanation:
The fractional distillation of air is carried out on liquid air. Before air is liquified, the carbon dioxide content of air is removed using caustic soda. The air is then compressed to a pressure of about 200 atm, sudden expansion of the gas leads to cooling. The process continues until air becomes liquid at -200°C.
Fractional distillation of liquid air usually produces nitrogen and oxygen as major products. nitrogen in obtained first since it has a lower boiling point than oxygen. The gases are then dried, compressed and stored in cylinders.
A student collects 25 mL of gas at 0.98 bar. What volume would this gas occupy at 1.013 bar? * 3 points 25.8 mL 24.2 mL .09 mL 34.7 mL
Answer:
24.2 mL.
Explanation:
Assuming constant temperature, we can solve this problem using Boyle's law, which states:
P₁V₁=P₂V₂Where:
P₁ = 0.98 barV₁ = 25 mLP₂ = 1.013 barV₂ = ?We input the data:
0.98 bar * 25 mL = 1.013 bar * V₂And solve for V₂:
V₂ = 24.18 mLThe closest option is the second one: 24.2 mL.
which deflects winds to the right or left
a) jet streams
b) land breeze
c) sea breeze
d) coriolis effect
Answer: right and what are the answers for?
Explanation:
What is the molarity of a solution in which 175.8
grams of NaCl is dissolved in 1.5 L of water?
The brightness of a light correlates to its amplitude. The higher the amplitude, the brighter the light will appear. Which of the waves below depicts the brightest light?
Answer:
Wave X is the brightest light
Explanation:
The amplitude of a wave refers to the maximum upward or downward displacement of a wave from its rest position. This implies that the amplitude is the measured distance from rest position to crest position. Similarly, the amplitude is also measured from the rest position to the trough position.
The crest of a wave is the point on a travelling wave that has the maximum amount of positive or upward displacement from the rest position. The trough of a wave is the point on the travelling wave that has the maximum amount of negative or downward displacement from the rest position.
From the wave diagrams shown in the attachment below, the wave that shows the highest amount of upward or downward displacement from the rest position (x - axis) is wave X. Since the brightness of a light wave increases with increaese in amplitude, wave X will have the highest amount of brightness.
Write the expressions for the equilibrium constants of the reactions below.
a. N2 + 3H2 ⇌ 2NH3
b. Br2 + H2 ⇌ 2HBr
c. CO + H2O ⇌ H2 + CO2
In general, for a given chemical reaction in equilibrium
[tex]aA + bB \rightleftharpoons cC + dD[/tex]
the equilibrium constant, Keq, will be
[tex]K_{eq}=\frac{\mathrm{[C]^c}[D]^d}{\mathrm{[A]^a[B]^b}}.[/tex]
Usually, only aqueous and gaseous species are included in the equilibrium constant; the concentration of any pure solid or liquid is omitted. While the states of the reactants and products in the reactions for this problem aren't given, these three particular reactions all happen to be ones where they can (and, in fact, do) occur where all the species are in the gaseous state. So, all the reactants and product(s) are included in the equilibrium constants below, but this will not always be the case.
a.
[tex]K_{eq}=\frac{\mathrm{[NH_3]^2}}{\mathrm{[N_2][H_2]^3}}[/tex]
b.
[tex]K_{eq}=\frac{\mathrm{[HBr]^2}}{\mathrm{[Br][H_2]}}[/tex]
c.
[tex]K_{eq}=\frac{\mathrm{[H_2][CO_2}]}{\mathrm{[CO][H_2O]}}[/tex]
The equilibrium constant has to do with the value that shows the extent to which reactants are converted into products.
What is equilibrium constant?The term equilibrium constant has to do with the value that shows the extent to which reactants are converted into products.
The following are the expressions for the equillibrium constant of each reaction;
[tex]K = [NH3]^2/[N2] [H2]^3[/tex][tex]K = [HBr]^2/[Br2] [H2][/tex][tex]K= [H2] [CO2]/[CO] [H2O][/tex]Learn more about equilibrium constant:https://brainly.com/question/10038290
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Se valoró una alícuota de 10ml de HCl con NaOH AL 0.0548M de la cual se gastó 17.9ml. La concentración molar del ácido es:
Answer:
se lonh hion ffyuk jlngvn
An ideal gas is held in a rigid container at temperature of 201∘C. Upon cooling the gas, the pressure decreases by a factor of 2.0, while the volume and the amount of gas remain constant. What must be the final temperature of the gas?
Answer:
237 K
Explanation:
Given that,
Initial temperature, T₁ = 201⁰C = 474 K
Let P be the initial pressure. Upon cooling the gas, the pressure decreases by a factor of 2.0, while the volume and the amount of gas remain constant.
Final pressure = P/2
The relation between the pressure and temperature is as follows :
[tex]\dfrac{P_1}{P_2}=\dfrac{T_1}{T_2}[/tex]
Put all the known values,
[tex]\dfrac{P}{\dfrac{P}{2}}=\dfrac{474}{T_2}\\\\2=\dfrac{474}{T_2}\\\\T_2=\dfrac{474}{2}\\\\T_2=237\ K[/tex]
So, the final temperature of the gas is equal to 237 K.
HELP PLS !!!!! NO LINKS
Answer:
Option aWeatheringExplanation:
Weathering is a term which describes the general process by which rocks are broken down at the Earth's surface into such things as sediments, clays, soils and substances that are dissolved in water.As weathered products are carried away, fresh rocks are exposed to further weathering.
Answer:
melting
Explanation:
I think think helpful it is or not