Odpowiedź:MMg - 24u
MO - 16u MMg + MO = 24u + 16u = 40uMMg(NO3)2 = 24u + 2*14u + 6*16u = 148u
MgO + 2 HNO3 --> Mg(NO3)2 + H2O40u -------------------- 148ux ----------------------- 29,6gx = 40u*29,6g / 148x = 8g6.
MCuSO4 = 64u + 32u + 4*16u = 160uMCu(OH)2 = 64u + 2*16u = 2*1u = 98u2 NaOH + CuSO4 --> Cu(OH)2 + Na2SO4 160u -------- 98u x ---------- 19,6gx = 160u*19,6g / 98u x = 32g
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Odpowiedź:
MMg - 24u
MO - 16u
MMg + MO = 24u + 16u = 40u
MMg(NO3)2 = 24u + 2*14u + 6*16u = 148u
MgO + 2 HNO3 --> Mg(NO3)2 + H2O
40u -------------------- 148u
x ----------------------- 29,6g
x = 40u*29,6g / 148
x = 8g
6.
MCuSO4 = 64u + 32u + 4*16u = 160u
MCu(OH)2 = 64u + 2*16u = 2*1u = 98u
2 NaOH + CuSO4 --> Cu(OH)2 + Na2SO4
160u -------- 98u
x ---------- 19,6g
x = 160u*19,6g / 98u
x = 32g
Wyjaśnienie: