2. Atoms & Elements

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

What is the molar mass of barium hydroxide, Ba(OH)_2?

Which of the following is the mass of one mole of carbon atoms?

What is the molar mass of sulfur dioxide (SO2) in grams per mole?

What is the mass in grams of 5.40 moles of lithium (Li)?

What is the oxygen-to-hydrogen mass ratio in hydrogen peroxide (H2O2)?

What is the molar mass of ammonia (NH_3)?

Given a 0.300 M solution of HF, what concentration of NaF is required to achieve [H3O+] = 2.3 × 10^{-4} M? (Assume Ka for HF = 7.2 × 10^{-4} and that NaF fully dissociates.)

Which of the following is the molar mass of carbon (C)?

Which quantity is equivalent to 39 grams of LiF?

Which of the following is the correct molar mass (to two decimal places) of silver nitrate, AgNO_3?

What is the mass of one mole of carbon atoms?

What is the mass of 7.00 mol of hydrogen peroxide (H_2O_2)?

Benzene has the chemical formula C_6H_6. If you have 24.0 grams of benzene, how many grams of hydrogen are present in this sample?

What is the mass of 4.32 mol of GaI_3?