100 ml of 5 M `NaOH` solution (density 1.2 g/ml) added to 200 mL of another `NaOH` solution which has a density of 1.5 g/ml and contains 20 mass perce

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100 ml of 5 M `NaOH` solution (density 1.2 g/ml) added to 200 mL of another `NaOH` solution which has a density of 1.5 g/ml and contains 20 mass perce

100 ml of 5 M `NaOH` solution (density 1.2 g/ml) added to 200 mL of another `NaOH` solution which has a density of 1.5 g/ml and contains 20 mass percent of `NaOH.` What will be the volume of the gas (at STP) in litres liberated when aluminium reacts with this (final) solution?
[Give answer excluding decimal places]
The reaction is `Al+NaOH+H_(2)OrarrNaAlO_(2)+H_(2)`
`(At. wt. Na=23, 0=16, H=1)`

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Salim Ahmed Kawsar · Answer 1 · Feb 05, 2023 15:29:48

Salim Ahmed Kawsar

Answered Feb 05, 2023

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Correct Answer - 68

100 ml of 5 M `NaOH` solution (density 1.2 g/ml) added to 200 mL of another `NaOH` solution which has a density of 1.5 g/ml and contains 20 mass perce

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