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NaCI of 95% purity is used to prepare salt cake (Na 2 SO 4 ) by the reaction, 2NaCI + H 2 SO 4 → Na 2 SO 4 + 2HCI If the product (Na 2 SO 4 ) is only % pure, what weight of NaCI is used up in producing 1 kg of the impure salt cake? PLEASE EXPLAIN A LITTLE IN DETAIL!
Since you have not mentioned the % purity of the productSo, if we assume that the Na2SO4 so formed is x% pure.We can solve the ques as,If both NaCl and Na2SO4 were 100 % pure, one can say that,2*58g NaCl gives Na2SO4 = 142 gif NaCl is regarded as 95 % pure,one can say, 95*2*58/100 g NaCl gives Na2SO4 = 142 gi.e, 110 g NaCl gives Na2S04 = 142 gor vice verca, 142 g is obtained by NaCl = 110 gif we take into account the percent purity of Na2SO4 also,142*x/100 g Na2SO4 is obtained by NaCl = 110g1 Kg Na2SO4 is obtained by NaCl = 110*100*1000/(142*x)You can replace the value of x to get the required answer.
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