2C12H4CI6+23O2+2H2O->24CO2+12HCI (b) how many grams of HCI are produce when 15.4 mol H2O react?

1 answer

To solve this problem, we need to use the coefficients in the balanced chemical equation to establish the mole-to-mole ratio between H2O and HCl.

From the balanced equation, we can see that 2 moles of H2O react to produce 12 moles of HCl.

Therefore, the mole-to-mole ratio is 2 moles of H2O : 12 moles of HCl.

Now we can calculate the number of moles of HCl produced when 15.4 mol of H2O react.

Number of moles of HCl = (15.4 mol H2O) x (12 mol HCl / 2 mol H2O)
= 15.4 mol H2O x 6
= 92.4 mol HCl

Finally, we can convert moles of HCl to grams using the molar mass of HCl.

Molar mass of HCl = 1.00794 g/mol (H) + 35.453 g/mol (Cl)
= 36.46094 g/mol

Mass of HCl = 92.4 mol HCl x 36.46094 g/mol
= 3368.78 g

Therefore, when 15.4 mol of H2O react, 3368.78 grams of HCl are produced.