Question

calculate the number of mole of 80g of sodium hydroxide

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Answer 1

Answer:

2

Explanation:

Number of moles can be calculayed by using the formula, n(no. of moles)= given mass of the substance ÷ molar mass of the substance

So in this case,

You must first find the molar mass of NaOH

Molar mass of NaOH = 23 + 16 + 1 = 40 g/mol

Using the above mentioned formula,

Number of moles in 60 grams of MaOH is

n= 80/40 = 2 moles of NaOH

Answer 2

Answer:

O.1 of molecule/avagradoes number that is