Phân tử khối của:

`H_2 SO_4 : 1.2+32.1+16.4 = 2+32+64 = 98` (đvC)

`AgNO_3 : 108.1 + 14.1 + 16.3 = 108 + 14 + 48 = 160` (đvC)

`HCl: 1.1+35,5.1 = 1+35,5 = 36,5` (đvC)

`NH_4 Cl : 14.1 + 1.4 + 35,5.1 = 14+4+35,5 = 53,5` (đvC)

`CuCl_2 : 64.1 + 35,5 . 2 = 64 + 71 = 135` (đvC)

`NaOH : 23.1 + 16.1 + 1.1 = 23+16+1 = 40` (đvC)

`Ca(OH)_2 : 40.1 + 2.(16.1 + 1.1) = 40+2.(16+1) = 74` (đvC)

`CuOH : 64.1 + 16.1 + 1.1 = 64+16+1 = 81` (đvC)

`CH_3 COOH: 12 + 1.3 + 12+ 16.2 + 1 = 12+3+12+32+1 = 60` (đvC)

`C_2 H_5 OH : 12.2 + 1.5 + 16.1 + 1.1 = 24+5+16+1 = 46` (đvC)

`H_2 O : 1.2 + 16.1 = 2+16 = 18` (đvC)

`KMnO_4 : 39.1 + 55.1 + 16.4 = 39 + 55 + 64 = 158` (đvC)

`HNO_3 : 1.1 + 14.1 + 16.3 = 1+14+48 = 63` (đvC)

Tính phân tử khối của các chất:

`\text{H}_2\text{SO}_4` `-> 1. 2 + 32 + 16. 4 = 98` (đvC)

`\text{AgNO}_3` `-> 108 + 14 + 16. 3 = 170` (đvC)

`\text{HCl}` `-> 1 + 35,5 = 36,5` (đvC)

`\text{NH}_4\text{Cl}` `-> 14 + 1. 4 + 35,5 = 53,5` (đvC)

`\text{Cu}\text{Cl}_2` `-> 64 + 35,5. 2 = 135` (đvC)

`\text{NaOH}` `-> 23 + 16 + 1 = 40` (đvC)

`\text{Ca(OH)}_2` `-> 40 + 16. 2 + 1. 2 = 74` (đvC)

`\text{CuOH}` `-> 64 + 16 + 1 = 81` (đvC)

`\text{CH}_3\text{COOH}` `-> 12 + 1. 3 + 12 + 16 + 16 + 1 = 60` (đvC)

`\text{C}_2\text{H}_5\text{OH}` `-> 12. 2 + 1. 5 + 16 + 1 = 46` (đvC)

`\text{H}_2\text{O}` `-> 1. 2 + 16 = 18` (đvC)

`\text{KMnO}_4` `-> 39 + 55 + 16. 4 = 158` (đvC)

`\text{HNO}_3` `-> 1 + 14 + 16. 3 = 63` (đvC)