A titration was performed to standardize an EDTA solution. Use the following dat

Question

A titration was performed to standardize an EDTA solution. Use the following data to calculate the molarity of the EDTA solution: 20.00 mL of a standard solution containing 0.01000 M Ca2* required 24.33 mL of EDTA to reach a distinct blue endpoint. 2xl0 024 mL 1.00 822 M . Suppose the student performing the standardization in question 1 above, rinsed his/her buret with deionized water, but neglected to rinse the buret with EDTA before filling it. How will this oversight impact the calculated molarity of the EDTA? Circle one of the following then explain your reasoning below. The calculated molarity will be a) artificially low. b) artificially high. c) unaffected by the oversight.

Explanation / Answer

Calculated Molarity is correct

Molarity = (Mass / Molar mass )/ Volume of solution in litres

The calculated Molarity in question 1 c) unaffected by the oversight

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