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Calculate the molarity of a solution con...

Calculate the molarity of a solution containing 5g of NaOH in 500 mL solution.

Text Solution

Verified by Experts

Moles of NaOH `=("5g")/(40" g mol"^(-1))=0.125" mol"`
Volume of the solution in litres `=450" mL"//1000" mL L"^(-1)`
Using equation
Molarity `=("Moles of solute")/("Volume of solution in litre")`
Molarity `=(0.125" mol"xx1000" mL L"^(-1))/(500" mL")=0.27" M"`
`=0.278" mol L"^(-1)=0.278" mol dm"^(-3)`
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