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MMLU-Pro / 4140 / Given the equilibrium H_2 S + H_2 O …

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

Given the equilibrium H_2 S + H_2 O \rightleftarrows H_3 0^+ + HS\Elzbarand HS\Elzbar+ H_2 O \rightleftarrows H_3 O^+ + S\Elzbar2, find the final concentration of S\Elzbar2, if the final concentrations of H_3 O^+ and H_2 S are 0.3 M and 0.1 M, respectively. k_1 = 6.3 × 10\Elzbar8for H_2 S + H_2 O \rightleftarrows H_3 0^+ + HS\Elzbarand k_2 = 1 × 10\Elzbar14for HS\Elzbar+ H_2 O \rightleftarrows H_3 0^+ + S\Elzbar2.

category

chemistry

options

  1. 0.3 M
  2. 8.1 × 10^-9 M
  3. 9 × 10^-23 M
  4. 1.2 × 10^-21 M
  5. 7 × 10^22 M
  6. 1 × 10^14 M
  7. 4.2 × 10^-14 M
  8. 5 × 10^-15 M
  9. 2 × 10^-7 M
  10. 6.3 × 10^8 M

src

stemez-Chemistry

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Source and history

upstream_id / Original problem ID
4140
task_id
9fc49d74-14e4-51ef-9e2b-1d09e8b8b5eb
task_key
default--test--4140
task_revision_id
1
config / split
default / test

Official source

initial import