Track a One-to-One Equivalence Calculation - Practice 1

5 questions0m 0s

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For the specified complete one-to-one reaction, equivalence means equal reacting amounts in moles. Multiply concentration by volume to find amount. This is a paper model, not a procedure for handling chemicals; an indicator endpoint can differ from true equivalence.

Worked example

For HA + OH- -> A- + H2O, 20 mL of 0.1 mol/L base supplies 2 mmol and reacts with 2 mmol HA at equivalence.

Question 1 Paper one-to-one acid/base model: at equivalence, 10 mL of 0.1 mol/L base reacted completely. How many millimoles of acid reacted? Answer

Question 2 Paper one-to-one acid/base model: at equivalence, 20 mL of 0.1 mol/L base reacted completely. How many millimoles of acid reacted? Answer

Question 3 Paper one-to-one acid/base model: at equivalence, 30 mL of 0.1 mol/L base reacted completely. How many millimoles of acid reacted? Answer

Question 4 Paper one-to-one acid/base model: at equivalence, 40 mL of 0.1 mol/L base reacted completely. How many millimoles of acid reacted? Answer

Question 5 Paper one-to-one acid/base model: at equivalence, 50 mL of 0.1 mol/L base reacted completely. How many millimoles of acid reacted? Answer