When you titrate a solution that contains CaCO_3 obtained by dissolving part of

Q: When you titrate a solution that contains CaCO_3 obtained by dissolving part of

Answer: Molarity is the number of moles of a substance in one litre of solution. Molarity = Moles /litre moles = Molarity X Litre V= 25 ml = 0.025 L Moles= 0.04820 M X 0.025 L =1.205 X 10-3 Convert moles to mmol 1 Mol = 1000 mmol 1.205X 10-3 Mol =1.205 mmol EDTA 25 ml EDTA contains 1.205 mmol

ID: 505308 • Letter: W

Question

When you titrate a solution that contains CaCO_3 obtained by dissolving part of an antacid tablet, you want to optimize the accuracy of the buret by dissolving a mass that will consume approximately 25 mL of the titrant EDTA. If the molarity of the EDTA solution is 0.04820, how many mmols of EDTA are there in 25.0 mL? Enter a numeric answer, to the correct number of significant figures. Do not include units. Enter Your Answer: How many mmols of Ca^2+ from an antacid tablet will react with the number of mmols of EDTA from Question 3? Refer back to Question 2, if necessary. Enter a numeric answer, to the correct number of significant figures. Do not include units. Enter Your Answer:

Explanation / Answer

Answer:

Molarity is the number of moles of a substance in one litre of solution.

Molarity = Moles /litre

moles = Molarity X Litre

V= 25 ml = 0.025 L

Moles= 0.04820 M X 0.025 L

=1.205 X 10-3

Convert moles to mmol

1 Mol = 1000 mmol

1.205X 10-3 Mol =1.205 mmol EDTA

25 ml EDTA contains 1.205 mmol

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When you titrate a solution that contains CaCO_3 obtained by dissolving part of

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