Question

calculate the mass of CaSO4.1/2H2O​

Answer 1

Explanation:

Formula unit mass of CaSO

4

.2H

2

O

= (Number Calcium atoms x atomic mass of Calcium) + (Number Sulphur atoms x atomic mass of sulphur) + (Number Oxygen atoms x atomic mass of Oxygen) + (Number Water molecules x Molecular mass of water molecule)

=(1×40)+(1×32)+(4×16)+(2×18)

=40+32+64+36

=172

Answer 2

Answer:

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