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taniismaiylowa
@taniismaiylowa
August 2022
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химия 9 класс, помогите срочно...3 задача , 15 вариант
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100ethereals
Verified answer
2КОН+CuSO4-->Cu(OH)2↓+K2SO4
m(KOH)=m*w=170г*0,224=38,08 г
n(KOH)=m/M=38,08г/56г/моль=0,68 моль; n(K2SO4)=n(KOH)/2=0,34моль
m(K2SO4)=n*M=0,34моль*174г/моль=59,16 г
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Verified answer
2КОН+CuSO4-->Cu(OH)2↓+K2SO4m(KOH)=m*w=170г*0,224=38,08 г
n(KOH)=m/M=38,08г/56г/моль=0,68 моль; n(K2SO4)=n(KOH)/2=0,34моль
m(K2SO4)=n*M=0,34моль*174г/моль=59,16 г