Diketahui Ar dari masing2 unsur

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H = 1, C = 12, N = 14, O = 6, Na = 23, Mg = 24, AI = 27, S = 32.
Tentukan Mr dari :
1).N2SO4.
2).N(CH3)3.
3).CH3COOH.
4).AI2(SO4)3.
5).NH4NO3.
6).M9SO4.7H2O.

TOLONG DIJAWAB YA KAWAN BUTUH BANGET NIH.

Diketahui Ar dari masing2 unsur

Diketahui Ar dari masing2 unsur

1. H2SO4 = 2H + S + 4O
= 2*1 + 32 + 4*16
= 2 + 32 + 64
= 98

2. N(CH3)3 = N + 3C + 9H
= 14 + 3*12 + 9*1
= 14 + 36 + 9
= 59

3. CH3COOH = 2C + 4H + 2O
= 2*12 + 4*1 + 2*16
= 24 + 4 + 32
= 60

4. Al2(SO4)3 = 2Al + 3S + 12O
= 2*27 + 3*32 + 12*16
= 54 + 96 + 192
= 342

5. NH4NO3 = 2N + 4H + 3O
= 2*14 + 4*1 + 3*16
= 28 + 4 + 48
= 80

6. MgSO4.7H2O = Mg + S + 11O + 14H
= 24 + 32 + 11*16 + 14*1
= 24 + 32 + 176 + 14
= 246

1. 14(2) + 32+ 16(4) = 124

2. 14 + 3(12+3) = 59

3. 12+ 3(1) + 12+ 2(16)+1 = 60

4. 2(27)+ 3(32+16(4)) = 342

5. 14+4(1) + 14+ 3(16) = 80

6. 24+ 32+ 16(4) + 7(2(1) + 16) = 230