Phosphoric acid, H3PO4, has some important applications. It can be used to produce fertilizers and it...

Phosphoric acid, H₃PO₄, has some important applications. It can be used to produce fertilizers and it is present in soft drinks. Phosphoric acid can be made from phosphorus in a two step process:

Reaction 1: P₄+ 5O₂ → P₂O₁₀

Reaction 2: P₄H₁₀ + 6H₂O → 4H₃PO₄

1. What is the molar mass of phosphoric acid, H₃ PO₄? Report your answer to 3 significant figures.

2. How many moles of H₃PO₄ can be produced from one mole of P₄?

3. A synthesis yielded 152 g of H₃PO₄. How many moles H₃PO₄ of were produced?

4. How many moles of P 4 P4 would be required to produce the number of moles of H 3 P O 4 H3PO4 determined in question 3?

5. Convert the moles of P₄ determined in question 4 into grams. This will tell us the grams of P₄ that actually reacted.

6. Let's say that the experimentalist actually used 175 g from a bottle labeled P₄. Based on your answer to question 5, you can see that it did not all react. We will assume that this was because the reagent in this bottle contained inert impurities. Based upon your answer to question 5 and the mass of the reagent taken from the bottle labeled P₄, what was the actual mass percent of P₄ in the bottle?

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Expert Solution

queen_honey_blossom answered 1 year ago

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