Given the reaction: 2 B(s) + 3 H2(g) ↽−−⇀ 2 BH3(g) at 25 oC. At equilibrium, 0.254 moles BH3, 0.588 moles H2 and 0.666 mole B are found in a 1.0 L flask. Determine the value of Kc. Express the answer to 3 sig.

Given the reaction: 2 B(s) + 3 H2(g) ↽−−⇀ 2 BH3(g) at 25 oC. At equilibrium, 0.254 moles BH3, 0.588 moles H2 and 0.666 mole B are found in a 1.0 L flask. Determine the value of Kc. Express the answer to 3 sig.

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter5: Thermochemistry

Section: Chapter Questions

Problem 5.83QE: Calculate H when a 38-g sample of glucose, C6H12O6(s), burns in excess O2(g) to form CO2(g) and...

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

Given the reaction: 2 B(s) + 3 H₂(g) ↽−−⇀ 2 BH₃(g) at 25 ^oC.

At equilibrium, 0.254 moles BH₃, 0.588 moles H₂ and 0.666 mole B are found in a 1.0 L flask.

Determine the value of K_c.

Express the answer to 3 sig. figs.

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