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A sample of an unknown metal was reacted with 10.0 mL of HCl to produce hydrogen gas, which was collected over water. Using data in Option, answer the following questions. Assume that there was no air initially present in the container used to collect the hydrogen gas.. 1. Using M to represent the metal, write a balanced equation for the reaction of the metal with HCI. Assume that the metal commonly forms a cation having a +2 charge. M + 2HCl -> mcl₂ + H₂ 2. Determine the pressure of the hydrogen gas collected in the experiment.

A sample of an unknown metal was reacted with 10.0 mL of HCl to produce hydrogen gas, which was collected over water. Using data in Option, answer the following questions. Assume that there was no air initially present in the container used to collect the hydrogen gas.. 1. Using M to represent the metal, write a balanced equation for the reaction of the metal with HCI. Assume that the metal commonly forms a cation having a +2 charge. M + 2HCl -> mcl₂ + H₂ 2. Determine the pressure of the hydrogen gas collected in the experiment.

Chemistry
Chemistry
10th Edition
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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Solve the problems using the information from option B.
**Title: Identification of an Unknown Metal by Reaction with Hydrochloric Acid** A sample of an unknown metal was reacted with 10.0 mL of HCl to produce hydrogen gas, which was collected over water. Using data in Option ___, answer the following questions. Assume that there was no air initially present in the container used to collect the hydrogen gas. 1. **Using M to represent the metal, write a balanced equation for the reaction of the metal with HCl. Assume that the metal commonly forms a cation having a +2 charge.** \( \text{M} + 2\text{HCl} \rightarrow \text{MCl}_2 + \text{H}_2 \) 2. **Determine the pressure of the hydrogen gas collected in the experiment.** 3. **Determine the moles of hydrogen gas collected.** 4. **Determine the moles of metal used.** 5. **Determine the atomic weight of the metal, and then use the periodic table to identify the metal.** 6. **Write a balanced equation for the reaction of the metal with HCl.**
Transcribed Image Text:**Title: Identification of an Unknown Metal by Reaction with Hydrochloric Acid** A sample of an unknown metal was reacted with 10.0 mL of HCl to produce hydrogen gas, which was collected over water. Using data in Option ___, answer the following questions. Assume that there was no air initially present in the container used to collect the hydrogen gas. 1. **Using M to represent the metal, write a balanced equation for the reaction of the metal with HCl. Assume that the metal commonly forms a cation having a +2 charge.** \( \text{M} + 2\text{HCl} \rightarrow \text{MCl}_2 + \text{H}_2 \) 2. **Determine the pressure of the hydrogen gas collected in the experiment.** 3. **Determine the moles of hydrogen gas collected.** 4. **Determine the moles of metal used.** 5. **Determine the atomic weight of the metal, and then use the periodic table to identify the metal.** 6. **Write a balanced equation for the reaction of the metal with HCl.**
### Experimental Data Table This table presents data collected from an experiment involving the reaction of hydrochloric acid (HCl) with metal, tracking various conditions and resultant gas volumes. | **Label** | **Temperature (°C)** | **Pressure (torr)** | **Concentration of HCl (M)** | **Mass of Metal (g)** | **Volume of Gas (mL)** | |-----------|---------------------|---------------------|----------------------------|---------------------|---------------------| | A | 30 | 765 | 5.0 | 0.207 | 60.9 | | B | 20 | 753 | 4.0 | 0.204 | 92.4 | | C | 20 | 745 | 3.0 | 0.283 | 59.9 | | D | 30 | 762 | 3.0 | 0.197 | 86.9 | | E | 20 | 748 | 2.0 | 0.235 | 67.2 | | F | 20 | 767 | 4.0 | 0.146 | 88.8 | | G | 30 | 757 | 5.0 | 0.318 | 74.0 | | H | 30 | 752 | 2.0 | 0.159 | 71.2 | #### Explanation: - **Temperature (°C):** The operational temperature at which each experiment was conducted. - **Pressure (torr):** The atmospheric pressure during each experiment. - **Concentration of HCl (M):** The molarity of hydrochloric acid used in the reaction. - **Mass of Metal (g):** Mass of the metal sample used in grams. - **Volume of Gas (mL):** Volume of gas collected as a result of the reaction, measured in milliliters. This data helps understand the relationship between various factors like temperature, pressure, reactant concentration, and reactant mass, with the volume of gas produced in chemical reactions.
Transcribed Image Text:### Experimental Data Table This table presents data collected from an experiment involving the reaction of hydrochloric acid (HCl) with metal, tracking various conditions and resultant gas volumes. | **Label** | **Temperature (°C)** | **Pressure (torr)** | **Concentration of HCl (M)** | **Mass of Metal (g)** | **Volume of Gas (mL)** | |-----------|---------------------|---------------------|----------------------------|---------------------|---------------------| | A | 30 | 765 | 5.0 | 0.207 | 60.9 | | B | 20 | 753 | 4.0 | 0.204 | 92.4 | | C | 20 | 745 | 3.0 | 0.283 | 59.9 | | D | 30 | 762 | 3.0 | 0.197 | 86.9 | | E | 20 | 748 | 2.0 | 0.235 | 67.2 | | F | 20 | 767 | 4.0 | 0.146 | 88.8 | | G | 30 | 757 | 5.0 | 0.318 | 74.0 | | H | 30 | 752 | 2.0 | 0.159 | 71.2 | #### Explanation: - **Temperature (°C):** The operational temperature at which each experiment was conducted. - **Pressure (torr):** The atmospheric pressure during each experiment. - **Concentration of HCl (M):** The molarity of hydrochloric acid used in the reaction. - **Mass of Metal (g):** Mass of the metal sample used in grams. - **Volume of Gas (mL):** Volume of gas collected as a result of the reaction, measured in milliliters. This data helps understand the relationship between various factors like temperature, pressure, reactant concentration, and reactant mass, with the volume of gas produced in chemical reactions.
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