Is a mole equal to 1 molecules?

Answer:

no

Explanation:

If the temperature is raised to 402 K, the pressure (in atm) of this given sample of gas will be 4.5.

Given,

Pressure P1 = 3.4 atm

Temperature T1 = 300 K

       ⇒            T2 = 402 K

   ⇒                P2 = ?

    ⇒          P1/T1 = P2/T2

 ⇒         3.4/300 = P2/402

    ⇒              P2 = 4.5

   ⇒     Pressure = 4.5 atm

An atmosphere (atm) is a measuring unit that corresponds to the average air sea level pressure at 15 degrees Celsius (59 degrees Fahrenheit). One atmosphere consists of 1,013 millibars of pressure, or 760 millimetres (29.92 inches) of mercury.

Pressure is defined as the force exerted by one material on another per unit area. The force also that gas exerts on the container limits is defined as gas pressure. Gas molecules travel at random over the specified volume. They clash with the surface as well as each other during this movement.

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In the chemical equation,Cl₂ (g) + K+ Br− → K+ Cl− + Br₂ (g) bromine looses an electron in the reaction.

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.

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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In scientific notation, the result of multiplying an integer between 1 and 10 by a power of 10 is written.For instance, 650,000,000 can be represented as 6.5 108 in scientific notation.

Always set the base to 10. The exponent must be an integer that is non-zero, therefore it can either be positive or negative. The absolute value of the coefficient must be less than ten and more than one.

a system of symbols for designating unique items. Example: In mathematics, the symbol "" stands for "infinity." There are many notations in mathematics.

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The pressure in the container can be calculated using Ideal gas law. The pressure of the gas at the reduced temperature will be 0.17 atm.

Ideal gas law states the relation between volume, pressure, temperature and number of moles of a gas as written below:

PV = nRT.

Where R is the universal gas constant equal to 0.082 L atm/ K mol.

Given , T = 100 K

n = 0.13 moles

V = 6.1 L

Then, P = nRT/ V

The pressure of the gas at 100 K with 0.13 mole is calculated as follows:

P = (0.13 mole × 100 K × 0.082 L atm/ K mol) / 6.1 L = 0.17 atm.

Therefore, the pressure of the gas is 0.17 atm.

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Other elemental substances in that they consist of two atoms of the same element, bonded together.

Diatomic elements are chemical elements that exist in the form of two atoms held together by covalent bonds. The most common elements that exist as diatomic molecules are hydrogen, oxygen, nitrogen, fluorine, chlorine, bromine, and iodine. These elements are found in nature and play important roles in the formation of compounds used in everyday life.

This bond is usually covalent in nature, and the two atoms form a stable molecule. This type of molecule is very stable and present in the form of gas, at room temperature and pressure. Examples of diatomic elements are hydrogen, oxygen, nitrogen, fluorine, chlorine, and bromine. Due to the fact that these elements are already in a stable, two-atom form, they exhibit different chemical and physical properties than other elements. For example, diatomic oxygen is highly reactive and can easily combine with other elements, while diatomic nitrogen is relatively inert. This difference in reactivity is due to the fact that the two atoms in the diatomic form share electrons more easily than atoms in other elemental forms.

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Both concentration and conductivity increase when larger amounts of sugar in a beaker of water dissolves.

The volume of the resulting solution will be larger than one quart if you dissolve a cup of sugar in a quart of water. In comparison to distilled water, the concentration of solutes inside the cell is higher. Most of the time, a particular amount of solvent can only dissolve a specific maximum amount of solute. This maximum amount is specified as the solubility of the solute. Only solutions with charge carriers will be able to conduct electricity. Simply having polar molecules in the solution is insufficient. It must be able to transfer electrons between points with the least amount of interference.

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3.88 grams of sodium azide are required to form 5.00 g of nitrogen gas.

In order to determine how many grams of sodium azide are required to form 5.00 g of nitrogen gas, we can use the balanced equation for the reaction:

2NaN3 (s) → 2Na (s) + 3N2 (g)

We can start by converting the given amount of nitrogen gas to moles:

5.00 g N2 x (1 mol N2 / 28.00 g N2) = 0.1786 mol N2

We know that the reaction produces 3 moles of N2 for every 2 moles of NaN3 that are used, so we can use the following ratio to find the number of moles of NaN3 required:

0.1786 mol N2 / 3 mol N2 = 0.0596 mol NaN3

Finally, we can convert moles of NaN3 back to grams using the molar mass of NaN3:

0.0596 mol NaN3 x (64.99 g NaN3 / 1 mol NaN3) = 3.88 g NaN3

So, 3.88 grams of sodium azide are required to form 5.00 g of nitrogen gas.

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A binary covalent bond exists between 2 nonmetals.

These compounds are termed similarly to binary ionic compounds even though they don't contain ions.

These guidelines apply to the nomenclature of binary covalent compounds:

The complete name of the first element in the formula is given first.

The name of the second element refers to it as an anion.

Prefixes are employed to indicate the number of atoms in a compound. The prefix mono- is dropped if the first element only has one atom.

For instance, carbon monoxide is the name given to CO rather than monocarbon monoxide.

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According to the question,16.2 kPa is equal to 0.16 atmospheres.

What is the atmospheres?

The atmosphere is the thin layer of gases and particles that surrounds Earth, protecting us from the sun’s harmful radiation and maintaining the planet’s temperature. It is composed of 78% nitrogen, 21% oxygen, 0.9% argon, 0.03% carbon dioxide, and trace amounts of other gases, as well as water vapour, dust, and other particles. The atmosphere works by trapping heat from the sun, allowing temperatures to remain relatively stable throughout the world. It also helps regulate the water cycle, ensuring that water remains available for life on Earth. The atmosphere also helps protect us from environmental hazards like ozone depletion and acid rain. In addition, it is home to many species of birds, insects, and other animals. Without the atmosphere, Earth would be a barren, lifeless planet.

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Nitrate NO 2 It is inappropriate to use one of the following ions' names and formulas.

Herbicides, explosives, defoliants, paper, leather, dyes, matches, and inks are all made from it. It's also used to make cosmetics and medications. An inorganic salt of sodium with the counter-ion chlorate is known as sodium chlorate. It serves as both a herbicide and an oxidizing agent for bleaching paper.

Chlorate, an anion, can enter drinking water through a number of different causes, such as the use of hypochlorite or chlorine dioxide as disinfectants, the oxidation of hypochlorite or chlorite by ozone, and pesticide runoff or paper mill discharges that contaminate the source water.

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There are 20 grams of Sodium hydroxide in a molar solution that has a volume of 500 cm3.

Caustic soda and lye are two other names for sodium hydroxide. It is a typical component of soaps and cleansers. Sodium hydroxide seems to be a white, unscented solid at room temperature. Sodium hydroxide is a colorless, odorless liquid. Strong acids and water can cause explosive reactions with it.

Molarity is calculated by

moles (solute) / volume of solution in L

No. of moles = mass / molar mass

We have to find mass of sodium hydroxide (NaOH)

As we know, in 1 L (1000 cm³) of molar solution there is 40 gram of NaOH present.

From using this statement, 500 cm³ of a molar solution, means half liter of a molar solution contain -

= 40 / 2

= 20 gram of NaOH.

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According to Gay-Lussac's law, the pressure of the gas at the cooler temperature is 132.95 torr.

It is defined as a gas law which states that the pressure which is exerted by the gas directly varies with its temperature and at a constant volume.The law was proposed by Joseph Gay-Lussac in the year 1808.

The pressure of the gas at constant volume reduces constantly as it is cooled till it undergoes condensation .

It is given as, P₁/T₁=P₂/T₂ , therefore P₂=225×65/110=132.95 torr.

Therefore,the pressure of the gas at the cooler temperature is 132.95 torr.

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The trick with this type of problem is that they usually don't tell you anything because they don't seem to have enough information. But the key is in the phrase "parallel to the wire".

A charged particle in a field should normally bend. If not, there must be some other force at work that balances the magnetic force. In this case it is the electron attraction.

Therefore, the magnetic force on the electrons must be "upwards" (i.e., the electrons are supposed to be downwards, hence towards the wire). Also, its size must be equal to mg of electrons (its mass is easy to find).

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It saves energy, minimizes air and water pollution, cuts greenhouse gas emissions, and protects natural resources. Stanford recycled, composted, and otherwise decreased its trash by 62% and reduced landfill by 35%.

It saves energy, minimizes air and water pollution, cuts greenhouse gas emissions, and protects natural resources. Stanford recycled, composted, and otherwise decreased its trash by 62% and reduced landfill by 35%. The process of transforming waste resources into new materials and things is known as recycling. This notion frequently includes the recovery of energy from waste materials. The capacity of a material to regain the attributes it had in its original form determines its recyclability. Recycling is the collection and processing of items that would otherwise be discarded as waste in order to create new goods. Recycling may help your town, economy, and environment.

Here,

It saves energy, decreases air and water pollution, lowers greenhouse gas emissions, and protects natural resources. Stanford recycled, composted, and avoided landfill by 62% and 35%, respectively.

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The part of the system that has two outputs of energy is the bulb.

We would have to recall that on the basis of the first law of thermodynamics, it can be said that energy can not be created nor destroyed but that energy would have to be converted from one form to the other.

In this case, we can see that as the boy is cycling, there is the conversion of the mechanical energy of the boy to the heat and the light energy of the bulb as shown. These are the outputs referred to above.

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Almost all of the oxygen (O2) one consumes in breathing is converted to: b. carbon dioxide (CO2).

When we breathe in oxygen, it is used in cellular respiration, which is the process by which our body converts glucose and oxygen into energy in the form of ATP. In the process, the oxygen is combined with the hydrogen atoms from glucose to form water, and the carbon atoms from glucose are converted to carbon dioxide (CO2) as a waste product. Therefore, almost all of the oxygen that one consumes in breathing is converted to carbon dioxide (CO2).Breathing is the process by which an organism takes in oxygen and expels carbon dioxide. In humans and other mammals, this process is accomplished through the respiratory system, which includes the nose, trachea, bronchi, and lungs. When we inhale, air is drawn into the lungs through the nose or mouth, passing through the trachea and bronchi before reaching the alveoli, which are small air sacs in the lungs where gas exchange occurs.

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H2SO4 has a molecular weight of 98 g/mole. 98% concentrated sulfuric with a density of 1.84 g/mL is the usual source.

We would need 98 g for a 1 M solution in 1 L, but because this is for 500 mL, just 49 g of H2SO4 will be needed. Common concentrations of sulfuric acid are 78, 93, or 98 percent. Pure anhydrous sulfuric acid does not exist in nature due to its affinity for water. 35% sulfuric acid Fertilizers like ammonium sulfate and super-phosphate of lime are produced using solution. In the production of hydrochloric acid, sulfate salts, synthetic detergents, dyes & pigments, and medications, it is frequently employed.

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Answer:

Wind, Rain and Snow

Consequently, winds are stronger at higher elevations. Colder temperatures at higher elevations also create precipitation, because cold air can't hold as much moisture as warm air. Moisture condenses out of the air as snow and ice, and it falls back to the ground.

The factors that affect the weather and climate are latitude, altitude, wind, and distance from the sea.

Climate can be described as the long-term weather pattern in an area, averaged over 30 years. Climate is the mean as well as the variability of meteorological variables over months to millions of years.

Some of the meteorological variables that are used to measure are temperature, atmospheric pressure, humidity, wind, and precipitation. The climate can be defined as the state of the components of the climate system, including the atmosphere, cryosphere, lithosphere, and biosphere, and the interactions between them.

The climate is affected by its latitude, terrain, altitude, land use, and water bodies and their currents. Climates can be classified based on the average and typical variables, most temperature, and precipitation.  It is used in studying of the biological diversity and how climate change affects it.

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The reaction would have a Kp of  3.01 * 10^34. Option B

We know that the equilibrium constant of the reaction is the value that would be able to show us how much of the reactants that have been converted to products when the reaction has attained the point of equilibrium at a given temperature.

As such we would have that;

Kp= Kc (RT)^Δn

Kp = ?

Kc = 1.22 * 10^ 33

R = 0.082

T = 301 K

Then we have that;

Kp =  1.22 * 10^ 33(0.082 * 301)^ 1

Kp = 3.01 * 10^34

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The two quantities in this module for which we will develop unit factors to do dimensional analysis with chemical substances are mass and volume.

Chemical substances are any material made up of atoms and molecules that have distinct chemical properties. They include elements, compounds, and mixtures of elements and compounds. Chemical substances are the building blocks of all matter, from the atoms and molecules that make up the smallest particles to the complex structures of living organisms. Chemical substances can exist in various states, such as solid, liquid, and gas, and can react with other substances to form new compounds or break down into simpler substances. Chemical substances are important in many areas of science, including chemistry, biology, geology, and physics.

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Period. As you move from either the left to the right, reactivity rises. Group reactivity diminishes from top to bottom.

As you move from left toward right across a period, responsiveness declines. Higher reactivity is caused by the ease with which electrons can be given or snatched away as you move further to the left as well as along the periodic chart.

This is because the size of both the atomic radius expands as the quantity of electronic energy does. reducing the attractiveness of other elements' valence electrons lowers reactivity.

It happens because there are more valence shells and less interaction among valence pairs of electrons. Consequently, the propensity to take electrons from some of the other atoms declines. Atoms get more electronegative as they move through a period.

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The initial amounts of x and y required to form solid xy are 1 mol of x and 1 mol of y.

The initial amount is the starting point for any financial transaction.

In order to calculate the initial amounts of x and y that will result in the formation of solid xy, the following equation must be used:
nx = ny * (4.1/kp)
where nx and ny are the moles of x and y, respectively, and kp is the equilibrium constant of the reaction.
Given the information provided, we can calculate the moles of x and y:
nx = ny * (4.1/4.1) = ny
ny = (22.4 L * 1 mol/22.4 L) = 1 mol
Therefore, nx = 1 mol and ny = 1 mol.
This means that if the reaction is carried out in a 22.4 L container, the initial amounts of x and y required to form solid xy are 1 mol of x and 1 mol of y.

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At equivalence, the number of moles of methylamine and HCl are equal, and the pH of the solution is 4.76.

At equivalence, the number of moles of methylamine and HCl are equal, so we can use the equation:

n(CH3NH2) = n(HCl)

0.2108M * 110.0mL = 0.4152M * V

V = 52.4mL

Total volume of the solution: 110.0mL + 52.4mL = 162.4mL

We can use the Henderson-Hasselbalch equation to calculate the pH at equivalence:

pH = pKb + log([CH3NH2]/[HCl])

pH = 3.36 + log(0.2108M/(0.2108M + 0.4152M))

pH = 3.36 + log(0.2108M/(0.6259M))

pH = 3.36 + log(0.3389)

pH = 3.36 + (-0.4719)

pH = 4.76

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Carbohydrates, is 60% of what your food made up of and it is composed of carbon, hydrogen and oxygen.

Carbohydrates are known to be the group of organic compounds that are an important source of energy for the body. They are composed of carbon, hydrogen and oxygen and are classified as simple or complex depending on their chemical structure. Monosaccharides, also called monosaccharides, include glucose, fructose, and galactose, and are found in foods such as fruit, table sugar, and honey. Complex carbohydrates, also called polysaccharides, contain starches and fibers and are found in foods such as grains, legumes, and vegetables. Carbohydrates play an important role in providing energy for the body, maintaining proper brain and nervous system function, and supporting tissue growth and repair.

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Dimensional evaluation makes use of conversion elements to use the unit in an quantity into an equal amount expressed with a exclusive unit.

For example, a conversion aspect might be used to transform meters to centimeters. Dimensional evaluation (additionally referred to as aspect label approach or unit evaluation) is used to transform from one set of gadgets to another. This approach is used for each simple (ft to inches) and complex (g/cm3 to kg/gallon) conversions and makes use of relationships or conversion elements among exclusive units of gadgets. A conversion ratio (or unit aspect) is a ratio same to one. This ratio includes the names of the gadgets for use withinside the conversion. It may be used for conversions in the English and Metric Systems, in addition to for conversions among the systems. The conversion unit is primarily based totally upon the idea of equal values.

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If we need 18.9 grams of HCl for a reaction, and we have a 1.5 M solution of HCl, the mL of this solution should we use is 345.3 mL.

Given that :

mass of the HCl =  18.9 grams.

molar mass of the HCl = 36.45 g/mol

moles of the HCl = mass / molar mass

                             = 18.9 / 36.45

                             = 0.518 mol

the molarity of the HCl = 1.5 M

The molarity is given as:

molarity = moles / volumes

volume in L = moles / molarity

                    = 0.518 / 1.5

                    = 0.3453 L

                    = 345.3 mL

Thus, the volume is 345.3 mL.

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The mass in grams of 6.02×[tex]10^{23}[/tex]  N2 molecules is 9.24×[tex]10^{23}[/tex] gram.

This is because each molecule of N2 is composed of two atoms of nitrogen, which each have a mass of 14.0067 grams.

Thus, the total mass of 6.022×[tex]10^{23}[/tex] N2 molecules is calculated by multiplying the number of molecules by the mass of each molecule, which is 28.0134 grams.

14.0067×2=28.013grams

This gives us a total mass of

6.02×1023×28.0134=9.24×[tex]10^{23}[/tex] grams

Molar mass:

Molar mass is the mass of one mole of a substance. It is expressed in grams per mole (g/mol). It is calculated by adding up the atomic weights of all the atoms in a molecule or formula unit of a compound. It is a useful measure when calculating the mass of a substance, or when calculating stoichiometric ratios in a chemical reaction.

Therefore the mass of 6.022×[tex]10^{23}[/tex] N2 molecule is 9.24×[tex]10^{23}[/tex]grams.

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Answer:

30.5%

Explanation:

Stomach ache, gassy ,no appetite is related to problems with digestive tract while sneezing all the time, runny nose is related to respiratory system while having a very hard time remembering people's is related to nervous system while seeming to be catching every disease that comes around,taking a long time to get better is related to immune system.

It consists of the gastrointestinal tract along with the accessory organs which are present in digestion process . It involves the breakdown of complex food into smaller components which can be easily assimilated and absorbed by the body.

The digestion process has 3 phases: cephalic phase , gastric phase and intestinal phase.Cephalic phase begins with secretion of gastric juices from gastric glands in response to sight and smell of food.It involves chewing and chemical breakdown of food by the action of digestive enzymes ,saliva in the mouth contain enzymes like lipase and amylase which are secreted by the salivary and serous glands present on the tongue.

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