Odpowiedź:
1. masa czasteczkowa
mNaOH= 23u+ 16u+ 1u= 40u
masa molowa
MNaOH= 23g/mol + 16g/mol + 1g/mol= 40g/mol
2. masa cząsteczkowa
mH3PO4= 3×1u+ 31u+ 4×16u= 3u+ 31u+ 64u= 98u
masa molowa
MH3PO4= 3×1g/mol + 31g/mol + 4×16g/mol = 3g/mol + 31g/mol+ 64g/mol = 98g/mol
3. masa cząsteczkowa
mK2PO4= 2×39u + 31u+ 4×16u= 78u+ 31u+ 64u= 173u
masa molowa
MK2PO4= 2×39g/mol + 31g/mol+ 4×16g/mol = 78g/mol+ 31g/mol + 64g/mol= 173g/mol
4. masa cząsteczkowa
mH2SO4 = 2×1u+ 32u+ 4×16u= 2u+ 32u+ 64u= 98u
masa molowa
MH2SO4= 2×1g/mol + 32g/mol+ 4×16g/mol = 2g/mol+ 32g/mol + 64g/mol= 98g/mol
5. masa cząsteczkowa
mAl(OH)3= 27u+ 3×16u+ 3× 1u= 27u+ 48u+ 3u= 78u
masa molowa
MAl(OH)3= 27g/mol + 3×16g/mol+ 3× 1g/mol= 27g/mol+ 48g/mol+ 3g/mol= 78g/mol
6. masa cząsteczkowa
mFe(NO3)3= 56u+ 3×14u+ 9×16u= 56u+ 42u+ 144u= 242u
masa molowa
mFe(NO3)3= 56g/mol+ 3×14g/mol+ 9×16g/mol= 56g/mol+ 42g/mol+ 144g/mol= 242g/mol
Wyjaśnienie:
