tolong yu guys buat ujian minggu depan

*lanjutan*

d) Mr CH3C(NH2)OH
= (2 × Ar C) + (6 × Ar H) + Ar N + Ar O
= (2 × 12) + (6 × 1) + 14 + 16
= 60

e) Mr CuSO4.5H2O
= Ar Cu + Ar S + (10 × Ar H) + (9 × Ar O)
= 64 + 32 + (10 × 1) + (9 × 16)
= 250