Question

I have the questions attached to this post! Please look at them :) has to do with quantitative analysis of a mixture.

Answer 1

:)

Answer 2

NOTE: \(n_A\)=moles of A

for 1) find the \(n_P\) present in \(Ca_3(PO_4)_2\), which will be same as in \(Mg_2P_2O_7\) since that's the only source (of P). Convert to mass.

for 2) find \(n_{CO_2}\) which will tell you \(n_{PbCO_3}\). Find \(n_{PbSO_4}\) which is the total amount of \(n_{Pb}\).
Since Pb and C are in a 1:1 ratio (in terms of number of atoms) in \(PbCO_3\), you can subtract \(n_{CO_2}\) from \(n_{PbSO_4}\) and you'll be left with moles of \(Pb(OH)_2\) only.

Compare \(n_{PbCO_3}\) and \(Pb(OH)_2\) to get their ratio, X.

Answer 3

sorry, the last sentence should read:

"Compare \(n_{PbCO_3}\) and \(n_{Pb(OH)_2}\) to get their ratio, x."