Consider the following reaction A(aq) <=> 2B(aq) Kc= 9.07x10^-6 at 500K If a 4.90 M sample...

Consider the following reaction

A(aq) <=> 2B(aq) Kc= 9.07x10^-6 at 500K

If a 4.90 M sample of A is heated to 500 K, what is the concentration of B at equilibrium?

Expert Solution

For the given reaction -

Kc = [B]² / [A]

For the equilibrium -

A (aq) <--------> 2 B (aq)

I(M) 4.90 0

C -x +2x

Eq (4.90-x) 2x

Hence -

Kc = 9.07*10^-6 = (2x)² / (4.90-x)

By solving - x = 0.0033 M

Therefore [B] at equilibrium = 2(0.0033) = 0.0066 M

queen_honey_blossom answered 1 hour ago

Consider the following reaction: HC2H3O2(aq)+H2O(l)?H3O+(aq)+C2H3O?2(aq) Kc=1.8

Consider the reaction IO−4(aq)+2H2O(l)⇌H4IO−6(aq);Kc=3.5×10−2 If you start with 25.0 mL of a 0.905 M solution of...

Consider the reaction IO−4(aq)+2H2O(l)⇌H4IO−6(aq);Kc=3.5×10−2 If you start with 25.0 mL of a 0.905 M solution of NaIO4, and then dilute it with water to 500.0 mL, what is the concentration of H4IO−6 at equilibrium?

Calculate the Kc for the following reaction at 25 °C: Mg(s) + Pb2+(aq)?Mg2+(aq) + Pb(s) Kc...

Calculate the Kc for the following reaction at 25 °C: Mg(s) + Pb2+(aq)?Mg2+(aq) + Pb(s) Kc = × 10 Enter your answer in scientific notation.

Consider the following reaction: HC2H3O2(aq)+H2O(l)⇌H3O+(aq)+C2H3O−2(aq) Kc=1.8×10−5 at 25∘C If a solution initially contains 0.180 M HC2H3O2H,...

Consider the following reaction: HC2H3O2(aq)+H2O(l)⇌H3O+(aq)+C2H3O−2(aq) Kc=1.8×10−5 at 25∘C If a solution initially contains 0.180 M HC2H3O2H, what is the equilibrium concentration of H3O+ at 25∘C∘C?

Consider the reaction IO−4(aq)+2H2O(l)⇌H4IO−6(aq);Kc=3.5×10−2IO4−(aq)+2H2O(l)⇌H4IO6−(aq);Kc=3.5×10−2 If you start with 22.0 mLmL of a 0.908 MM solution of...

Consider the reaction IO−4(aq)+2H2O(l)⇌H4IO−6(aq);Kc=3.5×10−2IO4−(aq)+2H2O(l)⇌H4IO6−(aq);Kc=3.5×10−2 If you start with 22.0 mLmL of a 0.908 MM solution of NaIO4NaIO4, and then dilute it with water to 500.0 mLmL, what is the concentration of H4IO−6H4IO6− at equilibrium?

Assume that at some temperature, Kc= 100 for the reaction: Fe3+ (aq) + SCN- (aq) ⇌...

Assume that at some temperature, Kc= 100 for the reaction: Fe3+ (aq) + SCN- (aq) ⇌ FeSCN2+. Calculate the equilibrium concentration of FeSCN2+ if 100 mL of 0.24 M Fe(NO3)3 are mixed with 100 mL of .24 M KSCN. Show your work. Specifically, how do I determine the initial amounts? Is it just .24 or .24/100mL? And do I need to convert to Liters or anything?

a) Consider the following reaction: A + 2B → 3 C Keq= 2.37x106 What is the...

a) Consider the following reaction: A + 2B → 3 C Keq= 2.37x106 What is the value of the rate constant if the reaction is multipled by 3? Express your answer in scientific notation. b) Consider the following reaction: A + 2B → 3 C Keq= 4.05x106 What is the value of the rate constand if the reaction is reversed? Express your answer in scientific notation. (can someone show me the steps with the answer because im still unclear...

Consider the following reaction: Fe3+(aq)+SCN−(aq)⇌FeSCN2+(aq) A solution is made containing an initial [Fe3+] of 1.2×10−3 M...

Consider the following reaction: Fe3+(aq)+SCN−(aq)⇌FeSCN2+(aq) A solution is made containing an initial [Fe3+] of 1.2×10−3 M and an initial [SCN−] of 7.8×10−4 M . At equilibrium, [FeSCN2+]= 1.7×10−4 M .Calculate the value of the equilibrium constant (Kc).

Consider the following reaction: Fe3+(aq)+SCN−(aq)⇌FeSCN2+(aq) A solution is made containing an initial [Fe3+] of 1.1×10−3 M...

Consider the following reaction: Fe3+(aq)+SCN−(aq)⇌FeSCN2+(aq) A solution is made containing an initial [Fe3+] of 1.1×10−3 M and an initial [SCN−] of 8.2×10−4 M. At equilibrium, [FeSCN2+]= 1.8×10−4 M . Part A Calculate the value of the equilibrium constant (Kc). Express your answer using two significant figures. Kc=

Consider the reaction: FeS(s) + 2HCl (aq) --> FeCl2(aq) + 2H2S(g). A 4.00g sample of FeS...

Consider the reaction: FeS(s) + 2HCl (aq) --> FeCl2(aq) + 2H2S(g). A 4.00g sample of FeS containing nonsulfuide impurities reacted with HCl to give 896mL of H2S at 14C and 782 mmHg.Calculate mass percent purity of the sample. State your final answer using 3 Sig figs

Question