Answer :
Final answer:
The concentration of the original Ba(OH)2 solution can be calculated using the given information and the formula for concentration. The concentration is approximately 0.292 M.
Explanation:
To calculate the concentration of the original Ba(OH)2 solution, we can follow these steps:
- Write the balanced chemical equation for the reaction between Ba(OH)2 and HBr:
Ba(OH)2 + 2HBr → BaBr2 + 2H2O
- Use the balanced equation to determine the mole ratio between Ba(OH)2 and HBr. In this case, the ratio is 1:2.
- Calculate the moles of HBr using its concentration and volume:
Moles of HBr = (concentration of HBr) × (volume of HBr solution in liters)
- Use the mole ratio to calculate the moles of Ba(OH)2:
Moles of Ba(OH)2 = (moles of HBr) / 2
- Finally, calculate the concentration of the Ba(OH)2 solution:
Concentration of Ba(OH)2 = (moles of Ba(OH)2) / (volume of Ba(OH)2 solution in liters)
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