0.70 g of a sample of Na_(2)CO_(3).xH_(2)O were dissolved in water and the volume was made to 100 ml. 20 ml of this solution required 19.8 ml of (N/10) HCl for complete neutralisation. The value of x is

0.70 g of a sample of Na_(2)CO_(3).xH_(2)O were dissolved in water and

1.	0.70 g of a sample of Na_(2)CO_(3).xH_(2)O were dissolved in water and the volume was made to 100 ml. 20 ml of this solution required 19.8 ml of (N/10) HCl for complete neutralisation. The value of x is
Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a><br/>1<br/>4<br/>10</p>Solution :Eq. `Na_(2)CO_(3)` = eq. HCl <br/> `20xxN=19.8xx(1)/(10)impliesN=(19.8)/(200)` <br/> `(<a href="https://interviewquestions.tuteehub.com/tag/w-729065" style="font-weight:bold;" target="_blank" title="Click to know more about W">W</a>)/(VxxM.wt)xx2=(19.8)/(200)impliesM.wt=141.4impliesx=2`</body></html>