Molar Mass Conversions

What is the mass of one mole of potassium (K)?

• 19 grams

• 39.10 grams

• 30.97 grams

• 38 grams

0.50 moles of carbon (C) is equal to how many grams?

• 6.0 grams

• 12.0 grams

• 8.0 grams

• 14.0 grams

36.0 g of beryllium (Be) contains how many moles?

• 0.25 mol

• 4.0 mol

• 45 mol

• 320 mol

What is the molar mass of AuCl₃?

• 96.00 g/mol

• 130.00 g/mol

• 232.51 g/mol

• 303.32 g/mol

What is the molar mass of (NH₄)₃PO₄

• 113.02 g/mol

• 124.13 g/mol

• 149.12 g/mol

• 137.00 g/mol

What is the mass of 2.50 mol of oxygen gas (O₂)?

• 40.0 g

• 80.0 g

• 16.0 g

• 32.0 g

What is the mass of 6.25 mol of Cu(NO₃)₂?

• 126 g

• 785 g

• 625 g

• 1172 g

What is the molar mass of AuCl₃?

• 96 g
• 130 g
• 232.5 g
• 303.3 g

Fluorine is diatomic.  What is the molar mass of fluorine gas?

• 18.998 g/mol
• 37.996 g/mol
• 9 g/mol
• 18 g/mol

How many grams are in 3.3 mol of Potassium Sulfide?

• 360 g
• 454 g
• 238 g
• 132 g