Question

10.6 grams of a substance of molecular weight 106 was dissolved in 100ml. 10 ml of the solution was perfected out into a 1000 ml flask and made up to the mark with distilled water the molarity of the resulting solution is?​

Answer 1

Answer:

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Answer 2

Answer: $10^{-2}$ molar

Explanation:

mass of substance in 100ml= 10.6g

mass of substance in 10ml= 10.6/100 x 10

                                            =1.06g

no. of moles of solute added into flask to make 1000ml of solution= 1.06/106

                                                                                                               =$10^{-2}$

by definition, molarity is the no. of moles of solute present in 1000ml of solution

therefore M= $10^{-2}$

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