Explanation Given: Temperature= 35 °C Total pressure= 758 mmhg Volume = 0.490 L Here, according to the given question, binary compounds of alkali metal (Here Na )and hydrogen react with water to liberate H 2 according to the following chemical equation: NaH + H 2 O → NaOH + H 2 Now, at35° C, the vapour pressure of water is 42.2 mmHg. We can calculate the vapour of H 2 using the vapour pressure of water and total pressure. Now, using the volume, vapour pressure of H 2 calculated and temperature, we can calculate the moles of H 2 using ideal gas equation. Now, the mass of H 2 can be calculated by using the moles of H 2 and molar mass of H 2 . Now from the above chemical reaction , we can see that NaH and H 2 are in the ratio 1:1. So, the number of moles of H 2 and number of moles of NaH are equal. Finally, we can calculate the mass of NaH using the number of moles of NaH and molar mass of NaH. Formula used: Vapour pressure of H 2 can be calculated using the formula Vapour pressure of H 2 = Total pressure − Vapour pressure of water Number of moles can be calculated using the ideal gas equation n = P V R T Where n =number of moles P =Pressure of the gas V =volume of the gas T =Temperature R =universal gas consatnt Mass of the gas can be calculated as Mass= Number of moles×Molar mass Calculation: Conversion of temperature: Temperature=35 °C =35+273 K =308 K Let P be the vapour pressure of H 2 Therefore, Vapour pressure of H 2 = Total pressure−Vapour pressure of water P=758 mmhg−42...

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ISBN: 9780136444459

Author: Tro

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Question

Chapter 10, Problem 124E

Interpretation Introduction

To determine:

The mass of H₂ that was liberated and the mass of NaH that reacted.

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Chapter 10 Solutions

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The mass of H 2 that was liberated and the mass of NaH that reacted.

Solution Summary: The author calculates the mass of H2 and NaH using the ideal gas equation.

Concept explainers

To determine:

The mass of H₂ that was liberated and the mass of NaH that reacted.

Chapter 10 Solutions

The mass of H 2 that was liberated and the mass of NaH that reacted.

Solution Summary: The author calculates the mass of H2 and NaH using the ideal gas equation.

Concept explainers

To determine: The mass of H2 that was liberated and the mass of NaH that reacted.

Chapter 10 Solutions

To determine:

The mass of H₂ that was liberated and the mass of NaH that reacted.