Phosphoric acid can be prepared by reaction of sulfuric acid with ...

[bobbysung]

Question 1

One molecule of a compound weighs 3.13 × 10^–22g. The molar mass of this compound is

◦ 1.92 g/mol.
◦ 531 g/mol.
◦ 531 g/mol.
◦ 188 g/mol.
◦ None of these are correct.

Question 2

Phosphoric acid can be prepared by reaction of sulfuric acid with “phosphate rock” according to the equation:

              Ca₃(PO₄)₂ + 3H₂SO₄→ 3CaSO₄ + 2H₃PO₄

Suppose the reaction is carried out starting with 113 g of Ca₃(PO₄)₂ and 91.7 g of H₂SO₄. Which substance is the limiting reactant?

◦ Ca₃(PO₄)₂

​

◦ H₂SO₄

​

◦ CaSO₄

​

◦ H₃PO₄

​

◦ none of these are correct

[Hdosisshsbshs]

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[bobbysung]

Great answer, keep it coming

[Jsherida]

Thanks for the timely response, appreciate it