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80g NaOH was added to 2L water. Find mo...

`80g NaOH` was added to `2L` water. Find molality of solution density of water `=1g//mL` .

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`m=("moles of NaOH")/("mass of" H_(2)O)xx1000=(80//40)/(2xx1000)xx1000=1"molal"`
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