Chapter 17: Q18P (page 775)

Balance each of the following examples of heterogeneous
equilibria and write its reaction quotient, Qc:
$(a) {Na}_{2} O_{2} (s) + {CO}_{2} (g) 𝆏 {Na}_{2} {CO}_{3} (s) + O_{2} (g) (b) H_{2} O (I) 𝆏 H_{2} O (g) (c) {NH}_{4} CI (s) 𝆏 {NH}_{3} (g) + HCI (g)$

Short Answer

Expert verified

A reaction quotient $(Q_{c})$ can create from a balanced chemical equation. Products and reactants are written in numerator and denominator with their coefficients as power and they are multiplied.

$(a) 2 {Na}_{2} O_{2} (s) + 2 {CO}_{2} (g) 𝆏 2 {Na}_{2} {CO}_{3} (s) + O_{2} (g) Q_{o} = \frac{{[{Na}_{2} O_{3}]}^{2} [O_{2}]}{{[{Na}_{2} O_{2}]}^{2} {[{CO}_{2}]}^{2}} (b) H_{2} O (I) 𝆏 H_{2} O (g) Q_{o} = \frac{[H_{2} O]}{[H_{2} O]} (c) 3 {NH}_{4} CI (s) 𝆏 3 {NH}_{3} (g) + 3 HCI (g) Q_{o} = \frac{{[{NH}_{3}]}^{3} {[HCI]}^{3}}{{[{NH}_{4} CI]}^{3}}$

Step by step solution

Reaction quotient of (QC) of (a)

$2 {Na}_{2} O_{2} (s) + 2 {CO}_{2} (g) 𝆏 2 {Na}_{2} {CO}_{3} (s) + O_{2} (g)$

Reaction quotient ,

$Q_{o} = \frac{{[N a_{2} O_{3}]}^{2} [O_{2}]}{{[N a_{2} O_{2}]}^{2} {[C O_{2}]}^{2}}$

Reaction quotient of (Qc) of (b)

$H_{2} O (I) 𝆏 H_{2} O (g)$

Reaction quotient ,

$Q_{o} = \frac{[H_{2} O]}{[H_{2} O]} = 1$

Reaction quotient of (Qc) of (c)

$3 {NH}_{4} CI (s) 𝆏 3 {NH}_{3} (g) + 3 HCI (g)$

Reaction quotient ,

$Q_{o} = \frac{{[N H_{3}]}^{3} {[H C I]}^{3}}{{[N H_{4} C I]}^{3}}$

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Balance each of the following examples of heterogeneous
equilibria and write its reaction quotient, Qc:
$(a) {Na}_{2} O_{2} (s) + {CO}_{2} (g) 𝆏 {Na}_{2} {CO}_{3} (s) + O_{2} (g) (b) H_{2} O (I) 𝆏 H_{2} O (g) (c) {NH}_{4} CI (s) 𝆏 {NH}_{3} (g) + HCI (g)$

Short Answer

Step by step solution

Reaction quotient of (QC) of (a)

Reaction quotient of (Qc) of (b)

Reaction quotient of (Qc) of (c)

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Balance each of the following examples of heterogeneousequilibria and write its reaction quotient, Qc:(a)Na2O2(s)+CO2(g)𝆏Na2CO3(s)+O2(g)(b)H2O(I)𝆏H2O(g)(c)NH4CI(s)𝆏NH3(g)+HCI(g)

Short Answer

Step by step solution

Reaction quotient of (QC) of (a)

Reaction quotient of (Qc) of (b)

Reaction quotient of (Qc) of (c)

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

Physical Chemistry

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Inorganic Chemistry

Organic Chemistry

Study anywhere. Anytime. Across all devices.

Balance each of the following examples of heterogeneous
equilibria and write its reaction quotient, Qc:
$(a) {Na}_{2} O_{2} (s) + {CO}_{2} (g) 𝆏 {Na}_{2} {CO}_{3} (s) + O_{2} (g) (b) H_{2} O (I) 𝆏 H_{2} O (g) (c) {NH}_{4} CI (s) 𝆏 {NH}_{3} (g) + HCI (g)$