QUESTION 1 During the experiment, the mass of original sample of compound was 2.965 g, and the mass of copper obtained was 1.006 g. Based on these numbers, calculate the mass of chlorine in the original sample in grams. Include the unit and three decimal places in your answer. QUESTION 2 If 1.045 g of copper was obtained in the experiment, how many moles (mol) of copper is this? Include the unit and five decimal places in your answer.

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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**QUESTION 1**

During the experiment, the mass of the original sample of the compound was 2.965 g, and the mass of copper obtained was 1.006 g. Based on these numbers, calculate the mass of chlorine in the original sample in grams. Include the unit and three decimal places in your answer.

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**QUESTION 2**

If 1.045 g of copper was obtained in the experiment, how many moles (mol) of copper is this? Include the unit and five decimal places in your answer.

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**QUESTION 3**

During the experiment, a student calculated the mass of chlorine in the compound to be 1.186 g. How many moles (mol) of chlorine are in the compound?

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Transcribed Image Text:**Question Completion Status:** --- **QUESTION 1** During the experiment, the mass of the original sample of the compound was 2.965 g, and the mass of copper obtained was 1.006 g. Based on these numbers, calculate the mass of chlorine in the original sample in grams. Include the unit and three decimal places in your answer. [Input Box] --- **QUESTION 2** If 1.045 g of copper was obtained in the experiment, how many moles (mol) of copper is this? Include the unit and five decimal places in your answer. [Input Box] --- **QUESTION 3** During the experiment, a student calculated the mass of chlorine in the compound to be 1.186 g. How many moles (mol) of chlorine are in the compound? [Input Box] --- Click "Save and Submit" to save and submit. Click "Save All Answers" to save all answers.
**Question 4**

A compound containing copper and chlorine contains 0.01047 moles of copper and 0.01802 moles of chlorine. Calculate the ratio of moles of chlorine to moles of copper \(\frac{\text{mol Cl}}{\text{mol Cu}}\).

- Round your answer to two decimal places. Do NOT include units. Your number should be greater than 1.

**Question 5**

Assume that the ratio of moles of Cl to moles of Cu \(\frac{\text{mol Cl}}{\text{mol Cu}}\) is equal to 3.09.

- If we represent the formula by CuCl\(_x\), what is the value for \(x\)?
- Round your answer to the nearest whole number. Do NOT include units. For example, if you determine the formula is CuCl\(_6\), enter "6".

**Question 6**

Assume the copper was not thoroughly dried in Step 7. How will the following measurements/calculations be affected?

- *The mass of copper* (measured in Step 9) will be too low or too high (type in the correct answer).
- *The calculated moles of copper* will be too low or too high (type in the correct answer).
- *The calculated mass of chlorine* will be too low or too high (type in the correct answer).

- Click Save and Submit to save and submit. Click Save All Answers to save all answers.
Transcribed Image Text:**Question 4** A compound containing copper and chlorine contains 0.01047 moles of copper and 0.01802 moles of chlorine. Calculate the ratio of moles of chlorine to moles of copper \(\frac{\text{mol Cl}}{\text{mol Cu}}\). - Round your answer to two decimal places. Do NOT include units. Your number should be greater than 1. **Question 5** Assume that the ratio of moles of Cl to moles of Cu \(\frac{\text{mol Cl}}{\text{mol Cu}}\) is equal to 3.09. - If we represent the formula by CuCl\(_x\), what is the value for \(x\)? - Round your answer to the nearest whole number. Do NOT include units. For example, if you determine the formula is CuCl\(_6\), enter "6". **Question 6** Assume the copper was not thoroughly dried in Step 7. How will the following measurements/calculations be affected? - *The mass of copper* (measured in Step 9) will be too low or too high (type in the correct answer). - *The calculated moles of copper* will be too low or too high (type in the correct answer). - *The calculated mass of chlorine* will be too low or too high (type in the correct answer). - Click Save and Submit to save and submit. Click Save All Answers to save all answers.
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