Объяснение:
Na2O + 2HCl = 2NaCl +H20
1) V(ню)Na20 = mNa20/ MNa20 =12.4/62 = 0.2
2) V(ню)NaCl = 2V(ню)Na20 = 0.2 •2 = 0,4
3) mNaCl = MNaCl • V(ню)NaCl = 58.5 •0.4 = 23.4 г
mNaCl= 23.4 г
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Объяснение:
Na2O + 2HCl = 2NaCl +H20
1) V(ню)Na20 = mNa20/ MNa20 =12.4/62 = 0.2
2) V(ню)NaCl = 2V(ню)Na20 = 0.2 •2 = 0,4
3) mNaCl = MNaCl • V(ню)NaCl = 58.5 •0.4 = 23.4 г
mNaCl= 23.4 г