An Excess of hydrogen sulfide reacts with 42 moles of oxygen. How many moles of each product is formed using the BCA Table?
And what is your reaction? What is the BCA table?
wow you sure arent familiar with chemistry reaction is what you need to know......And BCA=Before
Change
After
To determine the moles of each product formed using the BCA (balanced chemical equation) table, we need to follow these steps:
Step 1: Write the balanced chemical equation:
Hydrogen sulfide (H2S) + Oxygen (O2) -> Sulfur dioxide (SO2) + Water (H2O)
Step 2: Identify the stoichiometric coefficients for each compound in the balanced equation:
The stoichiometric coefficients are the numbers placed in front of each compound that indicate the molar ratio between them. In this case, the coefficients for the reaction are:
1 H2S + 2 O2 -> 1 SO2 + 2 H2O
Step 3: Set up the BCA table:
BCA stands for Before, Change, and After. It helps us track the moles of reactants and products during a reaction.
Reactants:
Compound | Stoichiometric Coefficient | Initial Moles | Change | Moles at Equilibrium
H2S | 1 | Excess | -1 | Excess
O2 | 2 | 42 | -2 | 42 - 2 = 40
Products:
Compound | Stoichiometric Coefficient | Initial Moles | Change | Moles at Equilibrium
SO2 | 1 | 0 | +1 | 1
H2O | 2 | 0 | +2 | 2
Step 4: Determine the moles of each product formed:
According to the BCA table, at equilibrium, 1 mole of SO2 and 2 moles of H2O are formed.
Therefore, when an excess of hydrogen sulfide reacts with 42 moles of oxygen, the reaction produces 1 mole of sulfur dioxide (SO2) and 2 moles of water (H2O).