Answer to Question #180178 in General Chemistry for hayley samantha farah

Question

From the following balanced equation:

3NaOH + H3​PO4​ Na3​PO4​ + 3H2​O

 How many moles of Na₃PO₄ can be made from 4.002 moles of H₃PO₄ and excess NaOH?

Answer 1

Molar Mass of NaOH = 39.997

Molar Mass of H₃PO₄ = 97.994

Molar Mass of Na₃PO₄ = 163.9

1/4 × 4.002 = 1.0005 moles of H₃PO₄

3/4× 4.002 = 3.0015 moles of NaOH

From the equation

1 mole of H₃PO₄ = 1 mole of Na₃PO₄

1.0005 moles of Na₃PO₄

3 moles of NaOH = 1 mole of Na₃PO₄

= 3.0015/3 = 1.0005

= 1.0005 × 2 = 2.001 moles of Na₃PO₄