General Chemistry Molar Conversions

Convert 50.0 grams of H₂O to moles of H₂O.

• 901 moles

• 18.02 moles

• 2.77 moles

When converting a mass to moles, what unit must be in the denominator of the conversion factor?

• grams

• moles

• grams/mole

Convert 13.25 grams of magnesium nitrate, Mg(NO₃)₂, to moles of the substance.

• 0.100 mole

• 0.0986 mole

• 0.0893 mole

Tags

NGSS.HS-PS1-7

What is the molar mass of Ba(OH)₂?

• 153.49 g/mol

• 201.97 g/mol

• 56.24 g/mol

Which of the following is the mass in grams of 4.25 x 10^3 mol of N2?

• 2.35 x 10^-4 g

• 1.52 x 10^2 g

• 5.95 x 10^4 g

• 1.19 x 10^5 g

88 grams of H₂O (18 g/mol) is how many moles?

• 4.88 moles

• .54 moles

• 6.67 moles

• 44 g

• 88 g

• 132 g

• 176 g

Tags

DOK Level 2: Skill/Concept

• 1.25 moles

• 1.50 moles

• 1.75 moles

• 2.00 moles

What is the molar mass of Al(NO₃)₃?

• 62.01 g/mol

• 88.99 g/mol

• 151.00 g/mol

• 213.01 g/mol

• 16 g/mol

• 18 g/mol

• 20 g/mol

• 22 g/mol

Tags

DOK Level 2: Skill/Concept