6 ml of a standard soap solution (1ml = 0.001g of CaCO_3 ) were required in titrating 50ml of water to produce a good lather. Calculate the degree of hardness.

6 ml of a standard soap solution (1ml = 0.001g of CaCO_3 ) were requir

1.	6 ml of a standard soap solution (1ml = 0.001g of CaCO_3 ) were required in titrating 50ml of water to produce a good lather. Calculate the degree of hardness.
Answer» <html><body><p></p>Solution :50 ml of hard <a href="https://interviewquestions.tuteehub.com/tag/water-1449333" style="font-weight:bold;" target="_blank" title="Click to know more about WATER">WATER</a> sample <a href="https://interviewquestions.tuteehub.com/tag/requires-7264857" style="font-weight:bold;" target="_blank" title="Click to know more about REQUIRES">REQUIRES</a> 6 ml of soap solution.<br/>Volume of soap solution required for `10^6`ml of hardwater to get good lather ` = (10^6 <a href="https://interviewquestions.tuteehub.com/tag/xx-747671" style="font-weight:bold;" target="_blank" title="Click to know more about XX">XX</a> 6)/(50)= 0.12 xx 10^6 ml` <br/>Given that if <a href="https://interviewquestions.tuteehub.com/tag/1ml-1803748" style="font-weight:bold;" target="_blank" title="Click to know more about 1ML">1ML</a> soap is required for the water sample to get good lather that sample contains 0.001g of `CaCO_3`<br/>1ml soap `to 10^3 g CaCO_3` <br/>`0.12 xx 10^6` ml soap `to`<br/>Weight equivalent of `CaCO_3` = 120 g<br/>Degree of <a href="https://interviewquestions.tuteehub.com/tag/hardness-14971" style="font-weight:bold;" target="_blank" title="Click to know more about HARDNESS">HARDNESS</a> of water sample = 120ppm</body></html>