---
title: "A student performs a gravimetric analysis experiment to determine the mass percent of \\(\\text{Cl}\\) in an unknown soluble salt mixture. The student dissolves a \\(0.500 \\text{ g}\\) sample of the mixture in distilled water and adds an excess of \\(\\text{AgNO}_3\\text{(aq)}\\) to precipitate \\(\\text{AgCl(s)}\\). The precipitate is collected by filtration and weighed. Which of the following experimental errors would cause the calculated mass percent of \\(\\text{Cl}\\) in the mixture to be higher than the actual mass percent?"
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url: "https://nerd-notes.com/ubq/119185/"
date_modified: "2026-08-19T12:39:12+00:00"
---

# A student performs a gravimetric analysis experiment to determine the mass percent of \(\text{Cl}\) in an unknown soluble salt mixture. The student dissolves a \(0.500 \text{ g}\) sample of the mixture in distilled water and adds an excess of \(\text{AgNO}_3\text{(aq)}\) to precipitate \(\text{AgCl(s)}\). The precipitate is collected by filtration and weighed. Which of the following experimental errors would cause the calculated mass percent of \(\text{Cl}\) in the mixture to be higher than the actual mass percent?

A student performs a gravimetric analysis experiment to determine the mass percent of \(\text{Cl}\) in an unknown soluble salt mixture. The student dissolves a \(0.500 \text{ g}\) sample of the mixture in distilled water and adds an excess of \(\text{AgNO}_3\text{(aq)}\) to precipitate \(\text{AgCl(s)}\). The precipitate is collected by filtration and weighed. Which of the following experimental errors would cause the calculated mass percent of \(\text{Cl}\) in the mixture to be higher than the actual mass percent?

- **A.** Adding an insufficient volume of \(\text{AgNO}_3\text{(aq)}\), leaving some \(\text{Cl}^-\text{(aq)}\) unreacted in solution
- **B.** Spilling a small portion of the solution containing the dissolved salt mixture before adding \(\text{AgNO}_3\text{(aq)}\)
- **C.** Failing to completely dry the \(\text{AgCl(s)}\) precipitate before measuring its final mass
- **D.** Rinsing the \(\text{AgCl(s)}\) precipitate with distilled water while it is on the filter paper prior to drying

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/119185/*