Mole Lab Pre-Lab

What is the molar mass of COPPER?

• 58.7 g/mol

• 58.9 g/mol

• 63.5 g/mol

• 29 g/mol

What is the conversion factor used to convert FROM moles of H₂O TO molecules of H₂O? Pay attention to what goes in the numerator and denominator in the conversion factor.  

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If you used 0.350 grams of chalk in 3 signatures, how much chalk was used in 1 signature (assuming the signatures are completely identical)?

• 1.05 g

• 0.117 g

• neither of the options are correct.

Which conversion factor would you use to covert FROM the grams of calcium carbonate used TO moles of calcium carbonate,assuming chalk is 100% calcium carbonate? (Pay attention to what goes in the numerator and denominator in the conversion factor)

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