Question

calculate the number of moles in 44g of NaOH

Answer 1

Answer:

The number of moles in 44g of NaOH = 1.1 moles

Explanation:

Gram molecular weight of NaOH= 23 + 16 + 1 = 40g

We use unitary method here;

1 mole of NaOH = 40g

? moles of NaOH = 44g

44/40 = 1.1 moles

Answer 2

44 GRAMS OF NaOH CONATINS 1.1 moles of NaOH.

Explanation:

• Every mole of a substance contains $6.022*10^{23}$ atoms/molecules.
• 1 mole of sodium hydroxide will also contains $6.022*10^{23}$ molecules and 40grams of NaOH.
• To calculate the given moles of NaOH, we will first find its molar mass and then divide it by the given mass.
• Molar mess of NaOH = $Na+O+H=23+16+1=40g/mol$.
• Moles of NaOH = $\frac{givenmass}{molar mass}=\frac{44}{40} =1.1$
• 44 grams of NaOH will contain 1.1 moles of NaOH.