# Need chemistry help with finding the mass of 0.25 moles

Anonymous
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### Question Description

What is the exact way that you would solve this problem?

School: UC Berkeley

mass= molar mass*moles

a)molar mass of Na=23 g/mol

mass of Na=23 g/mol *0.25 mols

mass of Na=5.75 g

b)molar mass of  Ca=40 g/mol

molar mass of Cl=35.5 g/mol

calcium chloride=CaCl2

molar mass of CaCl2=40+35.5*2

=111 g/mol

mass of calcium chloride=111 g/mol *0.25 mols

mass of calcium chloride=27.75 g

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Anonymous
Good stuff. Would use again.

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