How many MOLECULES of water are present in 9.27 grams of this compound?

Q: What is the number of moles of hydrogen gas in the sample

A: The number of moles of hydrogen gas can be calculated by the ideal gas equation which is given by…

Q: What is the mass of one mole of water (h2o)

A: Given,Moles of water, H2O = 1 molThe mass of 1 mole of water can be calculated as:

Q: Calculate the mass in grams of a single water molecule

A: Water has the molecular formula of H2O. Molecular mass of water is the sum of atomic masses of…

Q: How many molecules are in 40g of helium?

A: The given weight of He is 40 g.   The formula to calculate the number of moles is,

Q: What is the mass of a boron trichloride molecule ? | grams

A:

Q: How many grams of water (18.02 g/mol) would contain 6.54x10^24 hydrogen atoms?

A: Given :Molar mass of water = 18.02 g/molNumber of H-atoms = 6.54 x 1024We need to calculate the…

Q: how many molecules of water are present in 75.0 g of H20?

A: 1 mole of water that is 18 g contains 6.022 * 1023 molecules.

Q: A 24.8 g sample of water contains how many water molecules?

A: Molar mass of water = 18 gWe have 24.8 g water no of moles of water = 24.8 g18g/mol…

Q: Ten moles of hydrogen sulfide, H2S, would consist of how many molecules?

A: The number of atoms or molecules of a substance are calculated by using Avogadro's number. One moles…

Q: A sample of hydrogen sulfide, H2S, has a mass of 57.25 g. Calculate the number of hydrogen sulfide…

A: Given data,Mass of H2S=57.25gMolar mass of H2S=34.1g/mol

Q: What mass of CaCl2 will contain 49.5 g of chlorine?

A: One mole of the given compound CaCl2contains two moles of chlorine. In terms of mass, 110.98 g of…

Q: How many nitrogen atoms are present in 18.05g of ammonium nitrate?

A:

Q: 2.49E-1 moles of nitrogen is equivalent to how many molecules?

A: 1 mole of any substance (atoms, molecules or ions) contains Avogadro's  number of atoms, molecules…

Q: How many moles are present in 67.6 grams block of ice?

A: The number of moles (n), mass (m) and molecular mass of a sample of a compound (M) are related as:

Q: A 21.8 g sample of water contains how many water molecules?

A:

Q: How many N2 molecules are in 473.2 grams of N2?

A: Given that   Amount of Nitrogen gas N2 = 473.2 grams The molar mass of Nitrogen N2 = 28 gm/mol To…

Q: How many moles of oxygen atoms are contained in each compound?

A:

Q: How many moles are represented by 3.65x10^34 molecules of water?

A: Given: molecules of water = 3.65×1034

Q: How many hydrogen atoms are in 23.7 g of water

A:

Q: How many grams of water (18.02 g/mol) would contain 6.54 x 1024 hydrogen atoms

A: Avogadro number = 6.022 x 1023.

Q: 2, how many moles of water can form?

A:

Q: How many of molecules of water, H2O, are in a glass of 240g water?

A:

Q: How many sulfite ions are contained in 99.6 mg of sodium sulfite?

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: How many molecules are contained in two 270.-mg tablets of petricillin

A: Number of moles = mass/molar mass  1 mol contains 6.022 × 1023 molecules

Q: how many water molecules can a teaspoon hold?

A: Volume of 1 teaspoon = 4.93 mL Volume of teaspoon = volume of water = 4.93 mL = 4.93×10-3 L

Q: A cleaning bottle contains 83.1 g of ammonia. How many molecules of ammonia are in the bottle?

A:

Q: How many MOLECULES of dioxygen difluoride are present in 9.22 grams of this compound ?

A: We know, 1 mole of a compound contains 1 Avogadro number of molecules, where 1 avogadro number =…

Q: How many molecules are contained in a glass that holds 250 g of water? How many moles does that…

A: Number of moles is given by the ratio of mass of the substance to that of the molar mass of the…

Q: 48.1g of aluminum hydroxide to molecules of aluminum hydroxide

A: Consider the given information is as follows; Mass of aluminum hydroxide = 48.1 g…

Q: How many moles of water can be formed from 5 moles of oxygen gas?

A:

Q: calculate the number of (a) nitrogen molecules and (b) nitrogen atoms in 0.111 g of nitrogen gas

A: In one of any atom we have Avogadro number of of atoms. In one of any molecule we have Avogadro…

Q: The number of molecules in 76g of fluorine

A:

Q: The density of 1.00g/ml  is at 4 degrees . How many water molecules are present in 2.56 ml of water

A: Mass of Water can be calculated as,

Q: A 15.5 gram sample of diphosphorus pentoxide contains how many grams of phosphorous?

A: Mass of diphosphorus pentoxide (P2O5) is given = 15.5 g Molar mass of P2O5 = 141.94 g/mol Atomic…

Q: How many 325 mg tablets of aspirin are required to prepare 30 tablets of 10 grains?

A: Here we need to determine the number of 325 mg tablets required to prepare 30 tablets having 10…

Q: How many molecules of water are present in 3.4 g of water?

A: A numerical problem based on mole concept, which is to be accomplished.

Q: What is the mass of 9 water molecules?

A: Given : Number of water molecules i.e H2O = 9 molecules

Q: How many water molecules are in 36 grams of water

A: Given,Mass of water = 36 gMoles of water can be calculated as:

Q: what mass of lead is contained in 56.6g of lead(IV) fluoride?

A:

Q: What is the mass of a boron trichloride molecule ? grams

A: A molecular mass of a compound is defined as the sum of mass of all the atoms present in the…

Q: How many grams of Na are present in a 15 g sample of NaCl?

A: The number of moles for a given chemical species can be defined as the ratio of mass to the molar…

Q: How many total atoms in 23.7 g of water ?

A: Stoichiometry is mainly based on the calculation of moles, molar mass and volumes. These two values…

Q: Nine moles of sulfur dioxide, SO2, would consist of how many molecules?

A: Number of moles of SO2 = 9 Number of molecules of SO2 = ?

Q: How many water molecules are in 23.7 g of water

A: Given,  mass of water = 23.7 grams Here, number of moles = mass of water / molar mass { molar mass…

Q: How many moles of hydrogen chloride are contained  in a 52,6 g sample of this gas?

A: The moleculer weight of HCl is 36.5 gm/mol That 36.5 gm HCl=1 mol

Q: How many molecules of water make up 5.7 moles?

A: A mole is the amount of a substance that contains 6.02*10^23 representative particle of that…

Q: what mass of ethanol and water would you need to make an 80.0g mixture containing equal number of…

A: Mass=No. of moles×molar mass⊙ molar mass of Ethanol CH3CH2OH=2×atomic⊙ mass of C+6×atomic mass of…

Q: What mass of ethanol and water would you need to make an 80.0 g mixture containing equal number of…

A:

Q: What is the percent of NaOH by mass for 120 g of NaOH in 1000 g of water?

A: 120 g of NaOH in 1000 g of water.Mass of the solution is mass of the solute plus mass of the…

Q: How many water molecules are in 23.7g of water?

A: Number of moles of a substance is equal to the mass of the substance divided by its molar mass.…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.