Answer:
23.8g of sodium phosphate are formed
Step-by-step explanation:
Based on the reaction of sodium, Na, with phosphoric acid, H₃PO₄:
3Na + H₃PO₄ → Na₃PO₄ + 3/2 H₂
3 moles of sodium produce 1 mole of sodium phosphate
To solve this question we must find the moles of sodium in 10g. Using the chemical reaction we can find the moles -And the mass- of sodium phosphate produced, as follows:
Moles Na -Molar mass: 22.99g/mol-
10g * (1mol / 22.99g) = 0.435 moles Na
Moles Na₃PO₄:
0.435 moles Na * (1mol Na₃PO₄ / 3mol Na) = 0.145 moles Na₃PO₄
Mass Na₃PO₄ -Molar mass: 163.94g/mol-
0.145 moles Na₃PO₄ * (163.94g/mol) =
23.8g of sodium phosphate are formed