If 3.1gm Phospherous is present in a sample ofCa_(3)(PO_(4))_(2) the what is the weight of oxygen in the sample?

If 3.1gm Phospherous is present in a sample ofCa_(3)(PO_(4))_(2) the w

1.	If 3.1gm Phospherous is present in a sample ofCa_(3)(PO_(4))_(2) the what is the weight of oxygen in the sample?
Answer» Solution :Mol. WT of `Ca_(3)(PO_(4))_(2)` =310 gms. It contains 62g of phasphorus `:.` wt. of `Ca_(3)(PO_(4))_(2)` that contains 3.1 G of phosphorous `=(3.1xx310)/(62)`=15.5gm.