How many grams of NaOH should be dissolved to prepare 100 cm3
of 0.15 M NaOH solution?
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In 100mL100mL of 0.5MNaOH0.5MNaOH solution, there are 100ml×0.5molNaOHL=50mmolNaOH100ml×0.5molNaOHL=50mmolNaOH. Molar mass of NaOHNaOH = 40gmolNaOH40gmolNaOH. Mass of NaOHNaOH in 50mmol50mmol is 50×10−3×40g=2g50×10−3×40g=2g.
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