One Step Molar Conversions

What is the molar mass of water (H2O)?

• 16.0 g/mol

• 22.9 g/mol

• 20.0 g/mol

• 18.0 g/mol

Tags

NGSS.HS-PS1-1

How many grams are in 2 moles of carbon (C)?

• 12.0 grams

• 24.0 grams

• 36.0 grams

• 48.0 grams

What is the molar mass of calcium chloride (CaCl2)?

• 56.4 g/mol

• 79.0 g/mol

• 111.0 g/mol

• 90.3 g/mol

How many moles are in 25 grams of sodium (Na)?

• 2.5 moles

• 1.08 moles

• 0.5 moles

• 0.25 moles

What is Avogadro's number?

• 10

• 3.1416

• 1000

• 6.022 x 10²³

How many atoms are in 3 moles of oxygen (O2)?

• 9 x 10⁵⁷

• 1.81 x 10²⁴

• 3 x 10²⁴

• 6 x 10¹⁰

Tags

NGSS.HS-PS1-7

What is the molar mass of sulfuric acid (H2SO4)?

• 120.2 g/mol

• 32.1 g/mol

• 64.1 g/mol

• 98.1 g/mol

How many grams are in 0.5 moles of magnesium (Mg)?

• 12.15 grams

• 24.31 grams

• 6.08 grams

• 18.23 grams

How many moles are in 100 grams of potassium (K)?

• 2.56 moles

• 50 moles

• 10 moles

• 0.5 moles

What is the molar mass of ammonia (NH3)?

• 17.0 g/mol

• 12.0 g/mol

• 26.0 g/mol

• 30.5 g/mol