2. Atoms & Elements

What is the molar mass of CaCl_2?

How many total atoms are present in one formula unit of the compound Fe_2O_3?

A compound consists of 37.51 g of C, 8.38 g of H, and 54.11 g of O. What is the molar mass of the compound if its empirical formula is C3H8O2 and its molecular formula is a multiple of the empirical formula?

What is the molar mass of molecular hydrogen (H_2)?

What is the molar mass of sodium chloride (NaCl)?

What is the total mass in grams of 0.75 mole of SO_2?

Which of the following is the correct molar mass (in g/mol) of NH4Cl (s), the product formed in the reaction NH3(g) + HCl(g) → NH4Cl(s)?

What is the molar mass of Al(NO3)3?

Which of the following best describes the molar mass of a compound?

How many moles of CuSO_4 · 5H_2O are present in a 3.10 g sample?

Given that the molar mass of NO_2 is 46.01 g/mol, what is the mass of 9.44 × 10^{24} molecules of NO_2?

Nitrogen gas is a diatomic molecule. What is the molar mass of one mole of nitrogen gas (N_2)?

What is the formula weight (molar mass) of KBr, rounded to two decimal places?

What is the molar mass of AgCl?

What is the molar mass of NH_3?