Molar Mass and Conversions

What is the molar mass of Na₃P?

• 53.97 g

• 92. 92.91 g

• 115.91 g

What is the molar mass of Ag₂S?

• Ag (107.9 ) + S(32.06)=

  139.96 g

• Ag (2 x 107.9) =215.8 g

• Ag (2 x 107.9)+ S (32.06)= 247.9 g

What is the percent metal of the compound Ag₂S?

• 87 %

• 50 %

• 1 %

• 13%

What is the Molar Mass of Al₃O₂ ?

What is the percent of Aluminum in the compound Al₂O₃?

What is the molar mass of Oxygen gas (O₂)

• 16.00

• 32.00

Tags

NGSS.HS-PS1-7

CaCO₃

• 100.08 g

• 40.07 g

• 68.05 g

Tags

NGSS.HS-PS1-1

How many moles are in 39.1 g K?

• 1 mole

• 1528.81 moles

How many grams are in 2 moles of Oxygen (O₂) (Hint the molar mass of O_{2 =} 32.00g)

• 32.00g Oxygen

• 16.00 g Oxygen

• 64.00 g Oxygen