The correct IUPAC name for ZnCO3 is zinc carbonate.
...................ZnCO3 + heat ==> ZnO + CO2
ZnO + 2HCl ==> ZnCl2 + H2O
mols ZnCO3 = g/molar mass = 10.5 g/approx 125 = about 0.084
0.084 mols ZnCO3 will produce 0.085 mols ZnO and that will produce 0.084 mols ZnCl2.
grams ZnCl2 = mols ZnCl2 x molar mass ZnCl2 = ?
Note: I have estimated molar masses and estimated the calculations so you should recalculate all of the above. Post your work if you get stuck.
10.5g of zinc trioxocarbonate(iv), we're heated very strongly to a constant mass and resdiue treated with excess hydrochloric acid. Calculate the mass of zinc chloride that would be obtained
(Zn=16, C=12, O=16, h=1, Cl=35.5)
2 answers
I got 7.7g. Is it correct?