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For the coagulation of 100 mL of arsenio...

For the coagulation of 100 mL of arsenious sulphide solution , 5mL of 1 M NaCl is required. What is the coagulating power of NaCl?

Text Solution

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Total volume after addition of 5mL of 1M NaCl solution = 105 mL
Thus , `105 xx ` molarity of NaCl in colloidal solution `=5 xx 1`
Molarity of NaCl in colloidal solution `=(5)/(105)`
Concentration in millimole `=(5)/(105) xx 1000 = 47.6`
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