Multiple Step Mole Conversions

How many moles are in 89 liters of water vapor?

• 1993.6 moles

• 4.93 moles

• 1.478 moles

• 3.97 moles

How do we get mass from moles?

• multiply by avogadro's number

• multiply by molar mass

• divide by avogadro's number

• divide by molar mass

What is the mass in grams of 5.90 mol C₈H_18?

• .0512 g

• 19.4 g

• 673 g

• 389 g

What is the mass in grams of 2.3456 moles of W?

• 431.22 grams

• 6.02 grams

• 207.2 grams

• 486.01 grams

Tags

NGSS.HS-PS1-7

How many moles are in 98.3 g of Aluminum Hydroxide (Al(OH)₃)?

• 78.0 mol

• 1.30 mol

• 6.60 mol

• 5.90 mol

Tags

NGSS.HS-PS1-7

How many grams are in 0.375 mol KBr

• 39,10 g

• 44.625 g

• 0.003 g

• 56.525 g

How many grams are equal to 0.11 mole of copper (I) chromate, Cu₂(CrO₄)?

• 26.74 g

• 19.75 g

• 39.50 g

• 13.69 g

Tags

NGSS.HS-PS1-7

A baker needs 6 g of baking soda for a recipe. The chemical formula for baking soda is NaHCO₃. How many moles of baking soda is needed?

• 0.071 mol

• 0.167 mol

• 0.273 mol

• 0.214 mol

How many moles are in 16.94g of water?

• 16.94 mol H₂O

• 0.9401 mol H₂O

• 305.3 mol H₂O

• 1.063 mol H₂O

How many moles are in 50 liters of oxygen gas at STP?

• 1.25 moles

• 2.23 moles

• 3.57 moles

• 4.46 moles