Mole Ratios and Mole to Mole Calculations

What mass of calcium chlorate, Ca(ClO₃)₂, is equivalent to 0.750 moles of the substance?

• 155.24 grams

• 206.98 grams

• 128.65 grams

2.50 moles of sodium sulfate, Na₂SO₄, are added to a solution. What mass of the substance was this?

• 297.65 grams

• 142.05 grams

• 355.13 grams

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

• grams

• moles

• grams/mole

Tags

NGSS.HS-PS1-7

How many moles are in 19.82 g Mg? 

• 1.226mol Mg

• 481.7mol Mg

• 1.000mol Mg

•  0.8156 mol Mg

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 moles are in 20g of potassium (K)?

• 782 mol

• 512 mol

• 0.512 mol

• 0.023 mol

How many moles are in 10 g of salt (NaCl)?

• 0.171 mol

• 0.086 mol

• 3.42 mol

• 58.45 mol

A can of Coke has 39g of sugar. The formula for table sugar is C₁₂H₂₂O₁₁. How many moles of sugar is in a can of Coke?

• 0.414 mol

• 0.314 mol

• 0.214 mol

• 0.114 mol

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

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