Question

Mass of 3 moles of sodium hydroxide in grams

Answer 1

Answer:

sodium hydroxide= NaOH

sodium = 23, oxygen = 16 hydrogen = 1

23+16+1=40

3 mole = 40

mole=40/3= 13.3g

Answer 2

Explanation:

The chemical formula of sodium hydroxide is NaOH

Gram molar masses of elements:

The Sodium (Na) is 23g/mol

The Hydrogen (H) (molecule) is 2g/mol

The Oxygen (O) (molecule) is 32g/mol

We know that, the Formula for sodium hydroxide is NaOH

Therefore, the mass of 1 mole of NaOH is

1×23+1×16+1×1=40g

Similarly, the mass of 3 moles of NaOH = 3×40g = 120g

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