A student was titrating the calcium and water solution and notice the formation of bubbles in the flask. which description would best describe what is occuring?
1 answer:
Hi! When titrating Calcium and Water solution, if there is some CaCO 3 in the solution, the following reactions may occur in acid solution: CaCO₃ + H⁺ → Ca⁺² + HCO₃⁻ HCO₃⁻ + H⁺ ↔ H₂CO₃ → CO₂ (g) + H₂O The bubbles are from CO₂ that is being developed from an acidic solution of CaCO₃
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Answer:
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Explanation:
100 ml of .1 M will require .01 moles
from a 1.45 M solution, .01 mole would be
.01 mole / ( 1.45 mole / liter) = 6.9 ml of the concentrate then dilute to 100 ml
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