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Question
Calculate the molarity of a solution containing 5 g of NaOH in 450 ml
Calculate the molarity of a solution containing 5 g of NaOH in 450 ml
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Solution
Molar mass of NaOH= 40 g/mole
Number of moles in 5 g of NaOH = 5/40 =0.125
Volume of solution =450 ml= 0.45 L
Molarity of solution=
Number of moles of solute/ volume of solution in liter
= 0.125/0.45 = 0.28 M
Molar mass of NaOH= 40 g/mole
Number of moles in 5 g of NaOH = 5/40 =0.125
Volume of solution =450 ml= 0.45 L
Molarity of solution=
Number of moles of solute/ volume of solution in liter
= 0.125/0.45 = 0.28 M
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