Ile gramów miedzi potrzeba do otrzymania 8 gram siarczku miedzi I
Zad 1
2Cu + S ------ Cu2S mMcu2 = 64g*2 = 128g mMcu2s = 128g + 32g = 160
128g(Cu2) ----------- 160(Cu2S) X ----------- 8(Cu2S)X = 128g * 8g/160g = 6,4g
2Cu +S -> Cu₂S
1 mol Cu₂S:
M = 63,5 g*2 + 32g = 159g
1mol ---- 159g
x ---------- 8g
x = 0,05 mola
2 mole Cu --- 1 mol Cu₂S
x ------------- 0,05 mola Cu₂S
x = 0,1mol
M = 0,1* 63,5g = 6,35g
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Zad 1
2Cu + S ------ Cu2S
mMcu2 = 64g*2 = 128g
mMcu2s = 128g + 32g = 160
128g(Cu2) ----------- 160(Cu2S)
X ----------- 8(Cu2S)
X = 128g * 8g/160g = 6,4g
2Cu +S -> Cu₂S
1 mol Cu₂S:
M = 63,5 g*2 + 32g = 159g
1mol ---- 159g
x ---------- 8g
x = 0,05 mola
2 mole Cu --- 1 mol Cu₂S
x ------------- 0,05 mola Cu₂S
x = 0,1mol
M = 0,1* 63,5g = 6,35g