i need help please

Question

Question 1: S   +   6 HNO₃  -->  H₂SO₄  +  6 NO₂  +   2 H₂O

In the above equation how many moles of H₂SO₄ can be made when 10 moles of HNO₃ are consumed?

Question 2: Sodium chlorate decomposes into sodium chloride and oxygen gas as seen in the equation below.

­­2NaClO_3­ --> 2NaCl +3O₂

How many moles of NaClO_3­ were needed to produce 57 moles of O₂? Round your answer to the nearest whole number.

Question 3: Sodium chlorate decomposes into sodium chloride and oxygen gas as seen in the equation below.

­­2NaClO_3­ --> 2NaCl +3O₂

How many moles of O₂ were produced by 10 moles of NaClO₃­? Round your answer to the nearest whole number.

Please give and only give explanation and solution please.

Answer 1

For any instance in which you're converting from moles of one substance to moles of another in a reaction, you'll be using mole-to-mole ratios, which can be determined from the coefficients of the balanced chemical equation. For instance:

1) 10 mol HNO₃ * (1 mol H₂SO₄/6 mol HNO₃) = 1.67 mol H₂SO₄

The 1 mol H₂SO₄ and 6 mol of HNO₃ in the conversion factor come from the coefficients of 1 and 6 for H₂SO₄ and HNO₃ (respectively) in the balanced chemical equation.

2) 57 mol O₂ * (2 mol NaClO₃/3 mol O₂) = 38 mol NaClO₃

3) 10 mol NaClO₃ * (3 mol O₂/2 mol NaClO₃) = 15 mol O₂

I hope this helped!