2. Atoms & Elements

If the concentration of HNO3 is 0.01 M, what is the concentration of H+ ions in the solution?

What is the molar mass of NaHCO3 (sodium bicarbonate)?

What is the mass of 0.750 moles of ammonium chloride (NH4Cl)?

What is the molar mass of AuCl_3?

How many carbon atoms are present in 2.8 g of C2H4?

Which of the following statements is true about the molar mass of chlorine gas?

What is the mass in grams of 5.90 mol of C_8H_{18} (octane)?

Given 10.0 grams of C6H12O6 (glucose), how many oxygen atoms are present in the sample?

How many oxygen atoms are present in one formula unit of the compound Ba(OH)_2?

How many grams of K2SO4 are present in 0.123 mole of K2SO4? (Molar mass of K2SO4 = 174 g/mol)

What is the molar mass of NaCl?

What is the molar mass of Al_2(SO_4)_3?

What is the molar mass of sodium hydroxide (NaOH)?

What is the molar mass of table salt (NaCl)?

How many iron atoms are present in a 354 g sample of iron (Fe)?