(Chapter 15 - Attempt 1 Item 4 (< 4 of 15 > Review I Constants I Periodic Table Leaming Goal: To understand how to calculate the equilibrium constants for chemical equations that can be produced by the addition of other chemical equations with known equilibrium constants. • Part A For a chemical reaction equation with the general form aA + bB eC + dD Given the two reactions the equilibrium equation is given by 1. H;S(aq) - HS (aq) + H (aq), KI 9.22x10, and 2. HS (aq) s (aq) + H'(ag), K 1.55x1019. what is the equilibrium constant Kea for the folowing reaction? K1 Thus, for a chemical reaction equation with the general form s* (aq) + 2H (aq) H:S(aq) C+ dD eE + fF Enter your answer numerically. > View Available Hintis) the equilibrium equation is given by K2 SymBol undo redo feset keyboard shortouts Helo If the first two equations are added together such that aA + B n eE + JP Kra 1.4• 10-26 then the equilibrium equation is given by Submit Previoun Answer Ka JAB A C'D x Incorrect; Try Again; 2 attempts remaining or K3 = K - Ka Thus, when a chemical equation is the sum of two chemical equations for which equilibrium constants are already known, the equilibrium constant for the reaction is the product of the equilibrium constants for the individual reactions. Keep in mind that equilibrium equations do not include expressions for any pure solids or liquids that may be involved in the reaction • Part B Given the two reactions 3. PbCh (aq) Pb? (aq) + 2C1 (aq), K3 = 1.75x10, and 4. AgCl(aq) Ag" (aq) + CI (aq), K = 1.25x10* what is the equilibrium constant Ka for the following reaction? PbCh (aq) + 2Ag* (aq) 2AgC(aq) + Pb" (aq) it Express your answer numerically > View Available Hint(s) Templates Symdos undo rego feset keyboard shortouts Help Krasi 1.2• 10-2 Submit Previous Answers X Incorrect: Try Again; 4 attempts remaining

Chemistry: The Molecular Science
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ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter12: Chemical Equilibrium
Section: Chapter Questions
Problem 6QRT: Indicate whether each statement below is true or false. If a statement is false, rewrite it to...
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<Chapter 15 - Attempt 1
Item 4
4 of 15 (>
I Review I Constants | Periodic Table
Leaming Goal:
To understand how to calculate the equilibrium constants for chemical equations that can be produced by the
addition of other chemical equations with known equilibrium constants.
Part A
For a chemical reaction equation with the general form
aA + BB = cC+ dD
Given the two reactions
the equilibrium equation is given by
1. H2S(aq) = HS (aq) + H*(aq), K = 9.22x10-8 and
2. HS (aq) S (aq) +H*(aq), K2 = 1.55x1019
what is the equilibrium constant Knnai for the following reaction?
K1
[A" B*
s- (aq) + 2H*(aq) H,S(aq)
Thus, for a chemical reaction equation with the general form
cC + dD eE + fF
Enter your answer numerically.
• View Available Hint(s)
the equilibrium equation is given by
K2
C"ID
Templates Symbols undo regio Tese
keyboard shortcuts Help
If the first two equations are added together such that
Knai = 1.4 • 10-26
aA + bB t eE + fF
then the equilibrium equation is given by
Submit
Prevlous Anawere
K3
[A)" (B]
[A" B"
* CD
X Incorrect; Try Again; 2 attempts remaining
or
K3 = K1 - K2
Thus, when a chemical equation is the sum of two chemical equations for which equilibrium constants are
already known, the equilibrium constant for the reaction is the product of the equilibrium constants for the
individual reactions. Keep in mind that equilibrium equations do not include expressions for any pure solids or
liquids that may be involved in the reaction.
Part B
Given the two reactions
3. РЬСк (аq) — Ръ?* (аq) + 2C1 (аq), Кз-1.75x10-10, аand
4. AgCl(aq) Ag' (aq) + CI (aq), K4 = 1.25x10
what is the equilibrium constant Knnal for the following reaction?
РЬСЬ (аq) + 2Ag* (aq) 3 2AgCI(aаq) + Рb?+ (аq)
Express your answer numerically.
• View Available Hint(s)
)
Templates Symbole undo regio Teset keyboard shortcuts Help
Knanai = 1.2 • 10-2
Submit
Prevlous Anawere
X Incorrect; Try Again; 4 attempts remaining
Transcribed Image Text:<Chapter 15 - Attempt 1 Item 4 4 of 15 (> I Review I Constants | Periodic Table Leaming Goal: To understand how to calculate the equilibrium constants for chemical equations that can be produced by the addition of other chemical equations with known equilibrium constants. Part A For a chemical reaction equation with the general form aA + BB = cC+ dD Given the two reactions the equilibrium equation is given by 1. H2S(aq) = HS (aq) + H*(aq), K = 9.22x10-8 and 2. HS (aq) S (aq) +H*(aq), K2 = 1.55x1019 what is the equilibrium constant Knnai for the following reaction? K1 [A" B* s- (aq) + 2H*(aq) H,S(aq) Thus, for a chemical reaction equation with the general form cC + dD eE + fF Enter your answer numerically. • View Available Hint(s) the equilibrium equation is given by K2 C"ID Templates Symbols undo regio Tese keyboard shortcuts Help If the first two equations are added together such that Knai = 1.4 • 10-26 aA + bB t eE + fF then the equilibrium equation is given by Submit Prevlous Anawere K3 [A)" (B] [A" B" * CD X Incorrect; Try Again; 2 attempts remaining or K3 = K1 - K2 Thus, when a chemical equation is the sum of two chemical equations for which equilibrium constants are already known, the equilibrium constant for the reaction is the product of the equilibrium constants for the individual reactions. Keep in mind that equilibrium equations do not include expressions for any pure solids or liquids that may be involved in the reaction. Part B Given the two reactions 3. РЬСк (аq) — Ръ?* (аq) + 2C1 (аq), Кз-1.75x10-10, аand 4. AgCl(aq) Ag' (aq) + CI (aq), K4 = 1.25x10 what is the equilibrium constant Knnal for the following reaction? РЬСЬ (аq) + 2Ag* (aq) 3 2AgCI(aаq) + Рb?+ (аq) Express your answer numerically. • View Available Hint(s) ) Templates Symbole undo regio Teset keyboard shortcuts Help Knanai = 1.2 • 10-2 Submit Prevlous Anawere X Incorrect; Try Again; 4 attempts remaining
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