Question

How many moles of sodium sulfate will be formed if you start with 3.7 moles of sodium hydroxide?

Answer 1

First check it's balanced or not

On both sides

• Na=2
• O=6
• H=4
• S=1

Its balanced

• 2 mol NaOH produces 1 mol Na_2SO_4
• 1 mol NaOH produces 0.5mol Na_2SO_4

3.7 mol produces=3.7(0.5)=1.850=1.8mol Na_2SO_4