2. Atoms & Elements

What is the molar mass of methanol (CH3OH)?

If 0.250 mol of Cu is produced in a reaction, and the molar mass of Cu is 63.55 g/mol, how many grams of Cu are produced?

What is the molar mass of C2H4O2 (acetic acid)?

A sample contains magnesium hydroxide. What is the molar mass of Mg(OH)_2?

Calculating molar mass: The mass of 1 mole of sodium chloride, $\mathrm{Na}\mathrm{Cl}$, is closest to which value? (Use atomic masses $\mathrm{Na}\approx 22.99$ and $\mathrm{Cl}\approx 35.45$.)

What is the mass, in grams, of 1.5 moles of CO_2?

What is the mass, in grams, of a 2.16-mol sample of HNO3?

Which of the following is the molar mass of H_2O?

What is the mass, in grams, of 1.70 mol of carbon-12 (C)?

What is the molar mass of H_2?

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

Which of the following is the molar mass of copper (Cu)?

What is the mass, in grams, of 2.15 moles of aluminum (Al)? (Atomic mass of Al = 26.98 g/mol)

What is the mass of 0.560 moles of chlorine gas (Cl_2)?

Which of the following steps correctly describes how to determine the molar mass (formula weight) of NaCl?