the molar mass of propane is 44 grams per mole. how many moles is 11 grams of propane?

11 grams of propane is 0.25 moles of propane.

Quick Scoop

• Molar mass tells how many grams are in 1 mole of a substance. For propane, that value is 44 grams per mole.

• To find moles from grams, use the relation moles=massmolar mass\text{moles}=\frac{\text{mass}}{\text{molar mass}}moles=molar massmass​.

Using the given numbers:

• Mass of propane = 11 grams
• Molar mass of propane = 44 grams per mole

• So,

moles of propane=11textg44textg/mol=0.25textmol\text{moles of propane}=\frac{11\\text{g}}{44\\text{g/mol}}=0.25\\text{mol}moles of propane=44textg/mol11textg​=0.25textmol

• This same result appears in worked chemistry examples that use 11 grams of propane with molar mass 44 g/mol.

Answer: 0.25 moles of propane.