Question

Mass relationships in chemical reaction. Make a solution
Consider the reaction
KOH + CO2 -----> KHCO3
How many grams of KOH are required to react completely with 5.00 mol of CO2?

Answer 1

To solve this problem, we first need to balance the chemical equation:

2KOH + CO2 → KHCO3 + H2O

From the balanced equation, we can see that 2 moles of KOH react with 1 mole of CO2 to produce 1 mole of KHCO3. Therefore, to determine how many grams of KOH are required to react completely with 5.00 mol of CO2, we can use the following conversion factor:

5.00 mol CO2 × (2 mol KOH/1 mol CO2) = 10.0 mol KOH

Next, we need to convert the mol of KOH to grams using its molar mass:

10.0 mol KOH × (56.11 g/mol KOH) = 561 g KOH

Therefore, 561 grams of KOH are required to react completely with 5.00 mol of CO2.