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CBSE Class 11-science Answered

29.2 %(w/w) HCl stock solution has a density of 1.25 g/ml. The molecular weight of HCl is 36.5 g/mol. The volume(ml) of stock solution required to prepare  a 200 ml solution of 0.4 M HCl is
Asked by Anil | 23 May, 2017, 02:40: PM
answered-by-expert Expert Answer

Molarity of HCl,MHCl = 29.2g x 1000 m L/L                                = 10 mol L-1

                                         36.5 g/mol x (100g/1.25 g m L-1)

Using molarity equation, 10M x V = 0.4 M x 200 mL

 

V = 0.4  x 200 ml/10 =8 ml

Answered by Vaibhav Chavan | 23 May, 2017, 04:36: PM
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