Question #7bc7d
2 Answers
Jun 2, 2017
Explanation:
One mole of any substance has a mass equal to the substance's relative formula/atomic mass.
Calcium has a relative atomic mass of 40, so 4.23 moles would have a mass of
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Jun 2, 2017
n (no. of moles) = given mass(m)/ molecular mass(M)
Explanation:
so 4.23 moles= reqd mass/ 40 ( molecular mass of Ca=M=40g)
so m= 4.23*40=169.2 g ( ans)
.........................hope it helps......................................:)