how many moles of sodium hydroxide (naoh) will be produced from the complete reaction of 15.0 g sodium? 2na…

Answer:

0.652 mol

Explanation:

Step1: Calculate molar mass of Na

The molar mass of Na is 22.99 g/mol.

Step2: Calculate moles of Na

$n_{Na}=\frac{m}{M}=\frac{15.0\ g}{22.99\ g/mol}\approx0.652\ mol$

Step3: Determine mole - ratio

From the balanced equation $2Na + 2H_{2}O\rightarrow2NaOH + H_{2}$, the mole - ratio of $Na$ to $NaOH$ is 1:1 ($\frac{n_{NaOH}}{n_{Na}}=\frac{2}{2} = 1$).

Step4: Calculate moles of NaOH

Since $n_{NaOH}=n_{Na}$, $n_{NaOH}= 0.652\ mol$.