### Educational Content on Collection of Hydrogen Gas#### Table: Water Vapor Pressure vs Temperature| Temperature (°C) | Water Vapor Pressure (mmHg) ||------------------|-----------------------------|| 19 | 16.5 || 21 | 18.7 || 23 | 21.1 || 25 | 23.8 || 27 | 26.7 || 29 | 30.0 |#### Experiment DescriptionHydrogen gas is produced when magnesium metal reacts with hydrochloric acid. In a laboratory setting, a student collects 0.002581 g of hydrogen gas over water in a eudiometer at 23°C. The atmospheric pressure during the experiment is 794 mmHg.#### Problem Statement*Calculate the volume of dry hydrogen gas collected.*To find the volume of the dry gas, use the water vapor pressure at the experiment temperature (23°C), which is 21.1 mmHg, and apply the formula for correcting for the partial pressure of water in the total pressure measurement.**Volume of dry gas =** [Fill in calculation] **mL**

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Hydrogen gas is produced when magnesium metal reacts with hydrochloric acid. In the lab, a student collects 0.002581 g of hydrogen gas over water in a eudiometer at 23°C. The atmospheric pressure is 794 mmHg. What volume (in mL) of dry hydrogen gas would be collected? Water Vapor Temperature °C Pressure (mmHg) 19 16.5 21 18.7 Volume of dry gas = mL 23 21.1 25 23.8 27 26.7 29 30.0

Hydrogen gas is produced when magnesium metal reacts with hydrochloric acid. In the lab, a student collects 0.002581 g of hydrogen gas over water in a eudiometer at 23°C. The atmospheric pressure is 794 mmHg. What volume (in mL) of dry hydrogen gas would be collected? Water Vapor Temperature °C Pressure (mmHg) 19 16.5 21 18.7 Volume of dry gas = mL 23 21.1 25 23.8 27 26.7 29 30.0

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

Chapter5: Gases

Section: Chapter Questions

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Concept explainers

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

Question

### Educational Content on Collection of Hydrogen Gas

#### Table: Water Vapor Pressure vs Temperature

| Temperature (°C) | Water Vapor Pressure (mmHg) |
|------------------|-----------------------------|
| 19 | 16.5 |
| 21 | 18.7 |
| 23 | 21.1 |
| 25 | 23.8 |
| 27 | 26.7 |
| 29 | 30.0 |

#### Experiment Description
Hydrogen gas is produced when magnesium metal reacts with hydrochloric acid. In a laboratory setting, a student collects 0.002581 g of hydrogen gas over water in a eudiometer at 23°C. The atmospheric pressure during the experiment is 794 mmHg.

#### Problem Statement
*Calculate the volume of dry hydrogen gas collected.*

To find the volume of the dry gas, use the water vapor pressure at the experiment temperature (23°C), which is 21.1 mmHg, and apply the formula for correcting for the partial pressure of water in the total pressure measurement.

**Volume of dry gas =** [Fill in calculation] **mL**

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