谁帮我看看这个化学方程式呀Ni(NO3)2 + 3N2H4.H2O = {Ni(N2H4)3}(NO3)2 + 3H2O
1个回答

分子量:

M :Ni(NO3)2

58.69 + (14.01+16.00*3)*2 = 182.71g/mol

M :{Ni(N2H4)3}(NO3)2

58.69 + (14.01*2+1.01*4)*3 + (14.01+16.00*3)*2

=58.69+96.18+124.02

=278.89g/mol

M :N2H4.H2O

14.01*2+1.01*4+18.02=50.08g/mol

摩尔系数比:

Ni(NO3)2 + 3N2H4.H2O = {Ni(N2H4)3}(NO3)2 + 3H2O

1 3 1 3

摩尔数是:

根据得率按80%计

{Ni(N2H4)3}(NO3)2的摩尔数是:

(30/80%)/278.89mol=0.1345mol

则 Ni(NO3)2 消耗的摩尔数是:0.1345mol

则 N2H4.H2O 消耗的摩尔数是:3*0.1345mol

质量:

Ni(NO3)2 :

0.1345mol*182.71=24.5745g

N2H4.H2O:(根据其为浓度40%)

3*0.1345mol*50.08/40%=50.5182g

不好意思刚才算错了,公家的饭不等人哈,久等了!