Răspuns :
H2SO4
M=2+32+4.16=98
23
98 g H2SO4-----------2.6,023.10 atomi H
21
X g H2SO4------------18,069.10 atomi H
21 23
X=98.18,069.10 :2.6,023 .10 =1,47 g H2SO4
98 g(masa molara aacidului sulfuric).............................2x6.023x10la puterea 23
m..................................................................................18.069x10 la puterea 21
m=98x18.069 la puterea21/2x6.023 la puterea 23
m=147 x10 la puterea -2
m=1.47
m..................................................................................18.069x10 la puterea 21
m=98x18.069 la puterea21/2x6.023 la puterea 23
m=147 x10 la puterea -2
m=1.47