vi) What will be the molarity of solution if 10 g NaOH is dissolved in 500ml solution?
a. 1 Molar b. 0.5 Molar c. 2 Molar d. 0.25 Molar
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Answer:
0.25 Molar is the answer of this mcq
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Answer:
b. 0.5 Molar
Explanation:
Molarity = n×1000÷Vml
Molar mass of NaOH = 40g/mol
No of moles of NaOH =
10÷40 =0.25mol
therefore Molarity = 0.25×1000÷500 = 500÷250
=0.5molL −1
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