what mass in grams of hydrogen gas is produced using234g of nitric acid
To determine the mass of hydrogen gas produced, we need to know the balanced chemical equation for the reaction between nitric acid (HNO3) and hydrogen gas (H2).
Given the reaction:
HNO3 + H2 -> N2O + H2O
We can see that 1 mole of nitric acid (HNO3) reacts to produce 1 mole of hydrogen gas (H2). From here, we can use the molar mass of nitric acid (HNO3) to convert grams of nitric acid to moles, and then use the mole ratio to determine the moles of hydrogen gas formed. Finally, we can convert the moles of hydrogen gas to grams using the molar mass of hydrogen gas.
First, let's calculate the moles of nitric acid:
Molar mass of HNO3 = 1(atomic mass of H) + 1(atomic mass of N) + 3(atomic mass of O) = 1 + 14 + 3(16) = 63 g/mol
Moles of nitric acid = mass of nitric acid (234 g) / molar mass of nitric acid (63 g/mol) = 3.714 mol
Since the mole ratio is 1:1 between nitric acid and hydrogen gas, we have 3.714 moles of hydrogen gas.
Next, let's calculate the mass of hydrogen gas:
Molar mass of H2 = 2(atomic mass of H) = 2(1) = 2 g/mol
Mass of hydrogen gas = moles of hydrogen gas (3.714 mol) x molar mass of hydrogen gas (2 g/mol) = 7.428 g
Therefore, using 234 g of nitric acid, approximately 7.428 grams of hydrogen gas will be produced.