дано
m(CaCL2) = 22.2 g
m(Ca3(PO4)2)-?
3CaCL2+2H3PO4-->Ca3(PO4)2+6HCL
M(CaCL2) = 111 g/mol
n(CaCL2) = m/M = 22.2 / 111 = 0.2 mol
n(CaCL2) = n(Ca3(PO4)2)
M(Ca3(PO4)2) = 310 g/mol
m(Ca3(PO4)2) = n*M = 0.2* 310 = 62 g
n(Ca3(PO4)2) = m/M = 62 / 310 = 0.2 mol
ответ 62 г, 0.2 моль
Объяснение:
дано
m(CaCL2) = 22.2 g
m(Ca3(PO4)2)-?
3CaCL2+2H3PO4-->Ca3(PO4)2+6HCL
M(CaCL2) = 111 g/mol
n(CaCL2) = m/M = 22.2 / 111 = 0.2 mol
n(CaCL2) = n(Ca3(PO4)2)
M(Ca3(PO4)2) = 310 g/mol
m(Ca3(PO4)2) = n*M = 0.2* 310 = 62 g
n(Ca3(PO4)2) = m/M = 62 / 310 = 0.2 mol
ответ 62 г, 0.2 моль
Объяснение: