Question

15. Calculate the percentage of phosphorus in:
(a) Calcium hydrogen phosphate Ca(H,PO.)2
(b) Calcium phosphate Ca,(PO),​

Answer 1

Answer:

thank dietitian Osvaldo Brandon

Answer 2

Explanation:

Relative molecular mass of Ca

=40.07+(1×4)+(30.9×2)+(16×8)

=40.07+4+61.8+128

=233.87

233.87gCa(H2

PO

4

)

2

contains 61.8gP

So, 100gCa(H

2

PO

4

)

2

contains

233.87

100×61.8

=26.42g

The % of P in Ca(H

2

PO

4

)

2

is 26.42%