Which of the following solutions have the same concentration ?

1.	Which of the following solutions have the same concentration ?
Answer» 20 g of NAOH in 200 mL of solution 0.5 mol of KCl in 200 mL of solution 40 g of NaOH in 100 mL of solution 20 g of KOH in 200 mL of solution Solution :(A) MOLARITY (M) `=("Weight of NaOH"xx1000)/("MOLECULAR weight of NaOH"xx V (mL))` `= (20xx1000)/(40xx200)=2.5M` (B) `M=(0.5xx1000)/(200)=2.5M` (C) `M=(40xx1000)/(10xx100) = 10M` (D) `M = (20xx1000)/(56xx200) = 1.785 M` HENCE, 20 g NaOH in 200 mL of solution and 0.5 mol of KCl in 200 mL have the same concentration.

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