Question

Compoziţia procentuala a HCl si H2SO4

Answer 1

M HCI = M H + M C + M I

           =1+12+127

           =140

1 mol HCI = 140 g

140 g HCI....1 g H........ 12 g C...... 127 g I

100 g HCI .......x...........y...........z

x= 100*1:140 = 100:140 = 0,71

y=100*12:140=1200:140= 8,57

z=100*127:140 = 90,71

M H2SO4 =M H2 + M S + M O4

                =1*2 + 32 + 16*4= 98

1 mol H2SO4 = 98 g

98 g H2SO4.........2 g H2...........32 g S............64 g O4

100 g..............x.....................y...................z

x= 100*2 : 98 = 2,04

y=100*32:98 = 32,65

z= 100*64:98= 65,30

               

Answer 2

HCI = M H + M C + M I =1+12+127 =140 1 mol HCI = 140 g 140 g HCI....1 g H........ 12 g C...... 127 g I 100 g HCI .......x...........y...........z x= 100*1:140 = 100:140 = 0,71 y=100*12:140=1200:140= 8,57 z=100*127:140 = 90,71 M H2SO4 =M H2 + M S + M O4 =1*2 + 32 + 16*4= 98 1 mol H2SO4 = 98 g 98 g H2SO4.........2 g H2...........32 g S............64 g O4 100 g..............x.....................y...................z x= 100*2 : 98 = 2,04 y=100*32:98 = 32,65 z= 100*64:98= 65,30