Предмет: Химия, автор: Dashamorozova45

ПОМОГИТЕ ПОЖАЛУЙСТА ,30 БАЛЛОВ Какую массу нитрата серебра нужно взять для взаимодействия с хлоридом калия ,что бы получить осадок хлорида серебра массой 28,7 г

Ответы

Автор ответа: WepaDarkSouls
0
x           y        28.7
AgNO3+KCL=AgCl↓+KNO3
169        74.5   142.5
x=169×28.7÷142.5=34g
y=74.5×28.5÷142.5=15g
где 169,  74,5  и 142,5 это соответственно молярные массы нитрата серебра, хлорида калия и хлорида серебра.
Ответ: для получения осадка массой 28,7 г потребуется 34 г нитрата серебра  и 15 г хлорида калия.
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