The strengths of 5.6 volume hydrogen peroxide (of density 1 g/mL) in terms of mass percentage and molarity (M), respectively, are : (Take molar mass of hydrogen peroxide as 34 g/mol) (A) 0.85 and 0.5

Question

The strengths of 5.6 volume hydrogen peroxide (of density 1 g/mL) in terms of mass percentage and molarity (M), respectively, are : (Take molar mass of hydrogen peroxide as 34 g/mol)

(A) 0.85 and 0.5
(B) 0.85 and 0.25
(C) 1.7 and 0.25
(D) 1.7 and 0.5

Prashant Kotian · Accepted Answer

Correct answer: D) 1.7 AND 0.5. Volume strength = 11.2 x molarity ⇒ molarity = 0.5 Assuming 1 liter solution; mass of solution = 1000 ml x 1g/ml = 1000 g mass of solute = moles x molar mass = 0.5 mol x 34 g/mol = 17 gm ⇒ mass % = x 100 = 1.7% Hence, option (d) is correct

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