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Submit your detailed Question here...29.2 % (w/w) HCl stock solution has density of 1.25 g mL-1. The molecular weight of HCl is 36.5 g mol-1. The volume (mL) of stock solution required to prepare a 200 mL solution of 0.4 M HCl is
29.2 % (w/w) HCl stock solution has density of 1.25 g mL-1. The molecular weight of HCl is 36.5 g mol-1. The volume (mL) of stock solution required to prepare a 200 mL solution of 0.4 M HCl is as followsstock solution of HCl=29.2%(w/w)molarity of stock solution of HCl=29.2*1000*1.25/36.5*100if volume of stock solution required is Vmlthenv*29.2/36.5*1000/80=200*.4v=8ml
M1= 29.2*1.25*10/36 .5M1=10 M2=0.4V2=200M1V1=M2V210*V1=0.4*200V1=0.4*200/10V1=8So the answer is 8 ml And this is solved by the formula Molarity=%(w/w) *density of solution*10/molar mass of solute
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