Question

w 28 dmsyeđciennzch amoniaku oblicy a)ile jest gramow

b) czasteczek

c moli juy wzlicyzlam 1,25 moli NH3

Answer 1

M(NH₃)=14g/mol+3*1g/mol=17g/mol

 

a)

17g-------------22,4dm³

xg---------------28dm³

 

xg=17g*28dm³/22,4dm³

xg=21,25g

 

 

b)

22,4dm³----------6,02*10²³

28dm³----------------x

 

x=28dm³*6,02*10²³/22,4dm³

x=7,525*10²³

 

 

c)

1mol----------------22,4dm³

xmol----------------28dm³

 

x=1mol*28dm³/22,4dm³

x=1,25mol