Answer:
64.4g
Explanation:
The chemical reaction that will produce HNO₃ from NO₂ is given below:
3NO₂ + H₂O → 2HNO₃ + NO
Given;
Mass of HNO₃ = 88g
Now;
To solve this problem, find the number of moles of HNO₃;
Number of moles = [tex]\frac{mass}{molar mass}[/tex]
Molar mass of HNO₃ = 1 + 14 + 3(16) = 63g/mol
Number of moles = [tex]\frac{88}{63}[/tex] = 1.40mol
From the balanced reaction;
2 mole of HNO₃ is produced from 3 mole of NO₂
1.4 mole of HNO₃ will be produced from [tex]\frac{1.4 x 3} {2}[/tex] = 2.1mole of NO₂
Mass of NO₂ = number of moles x molar mass
Molar mass of NO₂ = 14 + 2(16) = 46g/mol
Mass of NO₂ = 1.4 x 46 = 64.4g
