Chemistry-(general)
NEET Chemistry (general) MCQ Question
Type: MCQ-numerical-Medium-Class 12
Calculate the molarity of a solution when 8 g of NaOH is dissolved in 500 mL of solution.
A
0.4 M
B
0.8 M
C
0.2 M
D
1.0 M
Correct Answer
Option A
Detailed Explanation
Using the molarity formula from NCERT, M = moles of solute/volume of solution in L. Moles of NaOH = 8 g / 40 g/mol = 0.2 mol. Volume in liters = 500 mL / 1000 = 0.5 L. M = 0.2 mol / 0.5 L = 0.4 M.
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