Объяснение:
1. CuSO₄
Mr(CuSO₄) = 64+32+16*4 = 160 г/моль
ω(Cu)=64/160*100%=40%
ω(S)=32/160*100%=20%
ω(O)= 16*4/160*100%=40%
3. Ca₃(PO₄)₂
Mr ( Ca₃(PO₄)₂) = 40*3+ (31+16*4)*2= 310
ω (Ca) = 40*3/310*100% = 39%
ω (P) = 31*2/310*100% = 20%
ω (O) = 16*8/310*100% = 41%
Объяснение:
1. CuSO₄
Mr(CuSO₄) = 64+32+16*4 = 160 г/моль
ω(Cu)=64/160*100%=40%
ω(S)=32/160*100%=20%
ω(O)= 16*4/160*100%=40%
3. Ca₃(PO₄)₂
Mr ( Ca₃(PO₄)₂) = 40*3+ (31+16*4)*2= 310
ω (Ca) = 40*3/310*100% = 39%
ω (P) = 31*2/310*100% = 20%
ω (O) = 16*8/310*100% = 41%