Question

how many mole are present in 4g of sodium hydroxide​

Answer 1

Answer:

0.1 mole

Explanation:

number of moles = given mass ÷ molecular mass

$= 4 \div 23 + 12 + 1 \\ = 4 \div 40 \\ = 0.1 \: mole$

Answer 2

Answer:

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