Ответы на вопрос:
Дано m(ppa agno3) = 95 g w(agno3) = 4% m(ppa hcl) = 10 g w(hcl)=14% m( m(agno3)= 95*4% / 100% = 3.8 g m(hcl) = 10*14%/100% = 1.4 g m(agno3) = 170 g/mol m(hcl) = 36.5 g/mol n(agno3)= m/m = 3.8/ 170 = 0.022 mol n(hcl) = m/m= 1.4 /36.5 = 0.038 mol n(agno3)< n(hcl) 3.8 x agno3+hcl--> agcl↓+hno3 170 143.5 x = 3.8*143.5 / 170 = 3.2 g ответ 3.2 г
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