Q2) - Determine the Molar Mass of CaCl₂.

Q: Convert 0.0361 mol NH4ClO4 to grams

A: Mass of substance in gram = No. of mole × molar mass

Q: If the mass of Mg is 0.19g and the product mass is 0.74g. What is the moles of Mg in the product

A: In this question, we have to calculate the number of moles of Mg produced. 1 mole of any substance…

Q: How many atoms in 17.8  mol CS2?

A: According to Avogadro's, the total no of molecules/atoms present in one mole of substance is equal…

Q: A 0.338-g sample of antimony was completely reacted with 0.295 g of chlorine gas to form antimony…

A:

Q: How many moles of NaCl are present in 100 g?

A:

Q: How many atoms are in 2.4 mol B?

A: Given : Moles of element B = 2.4

Q: 1. Ammonium Nitrate is an unstable explosive that also happens to be highly soluble in water. It is…

A:

Q: Determine the molar mass of CH,OH.

A: The compound given is CH3OH The compound has  1) 1 atom of C per molecule  2) 4 atoms of H per…

Q: sodium chloride is 60.66% chlorine by mass what is the mass % of sodium in sodium chloride?

A:

Q: determine the mass in grams of 0.365 moles of pb

A: Since atomic mass of Pb = 207 g/mol And since moles = mass / atomic mass Hence mass of lead = moles…

Q: How many molecules are 502.1g of NaF

A:

Q: There are 5.00 mol KBr in a beaker. How many molecules of KBr are in the beaker?

A: Number of molecules can be determined using mole concept.

Q: Difine the term molar mass

A: Molar mass is a physical properties of a substances

Q: how many grams of nitrogen are required to form 545 g of ammonia

A: A question based on mole concept that is to be accomplished.

Q: Why might the expression “1 mol of chlorine” be confusing? What change would remove any uncertainty?…

A: According to mole concept, one mole of any atom or molecule is equals to 6.022×1023 molecules.

Q: The molar mass of oxygen is?

A: The mass of one mole of an atom or molecule is defined as the molar mass. The molar mass is…

Q: 6. Determine the percent composition of magnesium nitrate.

A:

Q: percent by mass of sulfur in P4S10

A: The given question can be solved by using the mass percentage formula which is- Mass percent = Mass…

Q: A molecule has an empirical formula of NO. If the molar mass of the molecular formula is 117g/mol,…

A: We have to calculate the molecular formula.

Q: What is the mass percent of chlorine in sodium chloride?

A: Mass of one mole of chlorine=35.43 Mass of one mol sodium chloride (NaCl)=58.44 g The mass…

Q: The mass in grams of 8.7x10-4 moles of CuSO4

A: Molar mass of CuSO4 : 159.61 g/mol Therefore, 8.7x10-4 moles of CuSO4  having 8.7 x 0.0001 moles =…

Q: Find out the molar mass of C6H6Cl6.

A: The Molar Mass of the given Compound can be calculated as -

Q: If a 25 g sample is composed of 9 g C and 16 g O, what is its empirical formula?

A: Given: mass of C = 9 g mass of O = 16 g molar mass of C = 12.0 g/mol molar mass of O = 16.0 g/mol

Q: A compound has the chemical formula SrX2, where X is an unknown nonmetal. The percent by mass of Sr…

A:

Q: Calculate the number of moles represented by 21.7 g Fe.

A: Number of moles of a substance can be calculated by dividing the mass of the substance (g) with…

Q: How many total atoms are in 0.870 g of P,0,?

A:

Q: What is the mass (in g) of 2.71 mol of beryllium?

A: Atomic mass/molar mass of Beryllium = 9 g/mol Number of moles = Given mass/ molar mass Given is…

Q: Determine the molar mass of a substance if 0.360 moles has a mass of 152 g.

A: The given moles of substance is 0.360 moles. The given mass of substance is 152 g. The molar mass of…

Q: The molar mass is the mass of a mole of atoms. O True O False

A: Correct Ans is -  The molar mass is the mass of  a moles of atoms ---> This statement is true.…

Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for…

Q: Calculate the number of g of O,

A: Given :- moles of C3H8 = 3.77 mol  To calculate :- mass of O2 (in g)

Q: What mass of AgNO

A:

Q: If you have a 700.0 g sample of calcium acetate, how many moles of calcium acetate are present in…

A:

Q: How many chlorine molecules are contained in a 151.34 g sample of chlorine?

A: To know the number of molecules, first we have to know the number of moles. Moles = Given mass /…

Q: N2(g) + 3 H,(g)→2 NH;(g) How many moles of NH, can be formed from 3.0 mol of N, and 6.0 mol of H,?

A: Given reaction is : N2 (g) + 3H2 (g) ---------> 2NH3 (g)  Moles of N2 = 3.0 mole  Moles of H2 =…

Q: Consider a 10.1 g sample of the compound cesium phosphate. a) What is the chemical formula for…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: If 60.2 grams of Hg combines completely with 24 grams of Br to form a compound, what is the %…

A: Given: Mass of mercury (Hg)=60.2 g Mass of Bromine (Br)=24 g The total mass of compound =(60.2 +24)…

Q: What is the mass in grams of one mole of NH3?

A: Applying concept of mole n= w/M

Q: The number of atoms in 25.7gAl?

A: The number of atoms in 25.7gAl are

Q: Convert between mass and moles of an element. What amount of oxygen, in moles, does 49.8 g 0…

A: Given that, mass of O=49.8 g  molar mass of O= 16 g mol-1 moles of O=?

Q: How many carbon atoms are in 0.268 g of carbon?

A:

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.