How many moles are in 187 grams of C,Hg(OH)2?

Q: How many grams are in 2.3 moles of calcium phosphate, Ca3(PO3)2?

A: Given: The number of moles of Ca3(PO3)2 = 2.3 moles and we know that the molar mass of Ca3(PO3)2 =…

Q: What is the mass in grams of 3.45 mol of Na2SO4?

A: Given, Moles of Na2SO4 = 3.45 mol Mass (in grams) of Na2SO4 = ? Note:  molar mass of Na2SO4 = (2×23…

Q: How many hydrogen atoms are in 0.1488 g of phosphoric acid, H.PO.?

A: One mole of H3PO4 = 6.022 × 2023 formula…

Q: How many moles of hydrogen are in 3.06 x 103g of glycine , C,H¸NO,? 2

A: Given: Mass of glycine, C2H5NO2 = 3.06×10-3 g Molar mass of C2H5NO2 = 75.07 g/mol

Q: How many moles of each element are in 0.0250 mol of K 2 Cr O 4 ?

A: Moles of K= 2*0.025=0.050

Q: How many moles are in 8.00 g of Ca(NO3)2?

A: It is required to calculate the number of moles in 8 g of Ca(NO3)2 which can be done as,

Q: What is the molar mass of lead (IV) nitrate, Pb(NO3)4?

A:

Q: How many moles of alanine, C3H7NO2, are in 159 g of alanine?

A: Given Mass of Alanine = 159 gram Number of mole = ?

Q: How many moles are in 321 g of Al2(SO4)3?

A:

Q: How many moles are in 303 g of Mg(OH)2?

A: Even a small sample of matter may contain millions of atoms, molecules or ions. In order to deal…

Q: How many moles of Ag are in 67.1 grams of Ag₂O?

A:

Q: What is the mass in milligrams of (A) 4.95 mol of (NH4)2Ce(NO3)6?

A: Molar mass of  (NH4)2Ce(NO3)6 = 14 x 8 +1x 8  + 140 x 1 + 16 x 18 = 548 g/mol Mass = moles x molar…

Q: How many moles are in 2.56 x 10-4 grams of Fe2O3?

A:

Q: How many molecules are in 2.9 g of SF4?

A: Given: Mass of SF4 = 2.9 g Molar Mass of SF4 = 108.47 g/mol Avogadro's number = 6.022×1023

Q: How many moles of carbon atoms are there in 4.00 mol of C8H18?

A: No. of moles of C8H18 = 4.00 mol (Given) 1 mol of C8H18 contains 8 mol of carbon atoms.

Q: How many grams are in 7.89 x 10 24 atoms of H2SO4?

A:

Q: How many grams would be found in 7 moles of calcium sulfate, CaSO4?

A:

Q: How many moles are in 130 grams of calcium carbonate, CaCO3?

A: Given : Mass of CaCO3 = 130 g

Q: What is the mass in grams of 46.50 moles of NaBr?

A: The answer to the following quetion is_- Given moles of NaBr= 46.50 moles molar mass of NaBr is =…

Q: 3. How many molecules are there in 24 moles of FeF3?

A: Given values are,  Moles of FeF3 = 24 mol

Q: How many grams is 2.11 moles of NaCO3?

A: Given: Moles of NaCO3= 2.11 moles   To find mass of NaCO3:

Q: How many molecules are in 73.0 moles of CO 2 ?

A: 1 mole of atom/molecule : 6.022 * 1023 Now , just multiply the Avogadro’s number to number of moles…

Q: How many moles are there in 68.57 grams of water, H2O?

A: Given,  The mass of water, H2O = 68.57 grams The moles of H2O present in this mass is:

Q: How many atoms of hydrogen are in 132 g of (NH4)2HPO4?

A: Given: 132g of (NH4)2HPO4 The given grams of (NH4)2HPO4 is converted into moles as follows,

Q: How many grams of O are in 805 g of Li2O?

A: The mass of Li2O is = 805 g The mass of oxygen is =?

Q: How many grams of Zn(NO3)2 are there in 5.0 moles of Zn(NO3)2?

A: Given data,          Moles of Zn(NO3)2 = 5.0 moles Molar mass of Zn(NO3)2 =…

Q: How many molecules are there in 1.2 moles of Cu (NO3)2?

A:

Q: How many H atoms are in 75.7 g of acetaldehyde, C2H4O?

A:

Q: How many moles are in 33.36 grams of Ec,H5O2?

A: Given :- mass of Ec6H5O2 = 33.36 g               Molar mass of Ec = 31.79 g/mol  To calculate :-…

Q: How many moles are there in 23 g of FeO?

A: Given: mass of FeO = 23 g

Q: How many molecules are there in 12.5 g of NaOH

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

Q: How many moles of O are there in 12.4 mol Fe(NO3)3?

A: The question is about Oxygen atoms and not the Oxygen molecule There are 9 "O" atoms in the…

Q: 3. What is the mass in grams of 0.0435 moles of alcohol (C,H;OH)?

A: Molar mass = 2 • ( molar atomic mass C ) + 6 • ( molar atomic mass of H ) + ( molar atomic mass of O…

Q: How many moles of nitrogen, N, are in 88.0 g of nitrous oxide, N2O?

A: Since each molecule of N2O has 2 atoms of N  Hence moles of N = moles of N2O X 2  Since moles = mass…

Q: What is the mass in grams of 2.59 moles of aluminum oxide?

A: Given,    Number of Moles of Aluminum Oxide = 2.59 moles

Q: How many moles of hydrogen are in 3.06 x 103g of glycine , C2H5NO2?

A:

Q: How many moles are in 102.99 g of Fe3(PO4)2?

A:

Q: How many moles are in 3.18 g of Na2CO3?

A: Mass of Na2CO3 = 3.18 g Atomic mass of Na = 23 g/mol Atomic mass of C = 12g/mol Atomic mass of O =…

Q: How many moles is 83.7 g calcium carbonate, CaCO3 ?

A: Given Mass of Calcium carbonate is 83.7g We have to determine moles in 83.7g of Calcium carbonate.…

Q: How many moles of Fe2O3 are in 163 g of the compound?

A: Given - mass of Fe2O3 = 163 g To find - moles of Fe2O3 Formula -

Q: How many grams of potassium oxide (K2O) are there in 0.914 mol?

A: Number of moles can be using the equation given below:

Q: How many moles of Ag are in 47.6 grams of Ag2O?

A: Number of moles can be calculated as: Moles = massmolar mass The given information is: Mass of Ag2O…

Q: How many atoms of hydrogen are in 230  g of hydrogen peroxide ( H2O2)?

A:

Q: How many grams is a sample of 0.863 moles of zinc nitrate, Zn(NO3)2?

A: To convert from moles to mass, first, calculate the molar mass of Zn(NO3)2 and then use that to find…

Q: How many chlorine atoms are there in 8.4 mol of PCl5?

A:

Q: How many moles are present in 300 grams of Zn3 (PO4)2 ?

A: Given : Mass of Zn3(PO4)2 = 300 g

Q: How many grams of HC2H3O2 are there in 3.6 moles of HC2H3O2?

A: The Mass (in grams) of HC2H3O2 in 3.6 moles of HC2H3O2 is to be calculated.

Q: How many grams of calcium nitrate are present in 55.2 moles of Ca(NO3)2?

A:

Q: 4. How many molecules are in 2.5 mole H,O?

A: Any  1 mol of substance  always contains avogadro number of molecules.

Q: How many molecules are in 2.73g of NaCl?

A: Given data contains, Mass of sodium chloride is 2.73 g. Molar mass of sodium chloride is 58.44…

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.