1.

10 g of sample of mixture of CaCl_(2) and NaCl are treated to precipitate all the calcium as CaCO_(3). This CaCO_(3) is heated to convert all the Ca to CaO and the final mass of CaCl_(2) in the original mixture is

Answer» <html><body><p>0.321<br/>0.162<br/>0.218<br/>0.12<br/></p>Solution :a) `CaCl_(2) + NaCl = 10g` <br/> Let, weight of `CaCl_(2)` = <a href="https://interviewquestions.tuteehub.com/tag/xg-747279" style="font-weight:bold;" target="_blank" title="Click to know more about XG">XG</a> <br/> `CaCl_(2) to CaCO_(3) to CaO` <br/> Moleof CaO = `(1.62)/(56) rArr x/111 = 1.62/56 x = 3.21g` <br/> `%` of `CaCl_(2)` = (3.21/10 x 100) = 32.1%`</body></html>


Discussion

No Comment Found