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1)Determine the pH of each solution. Part A 0.20 M KCHO2 Express your answer to two decimal places. Part...

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Question

Chemistry

1)Determine the pH of each solution.

Part A

0.20 M KCHO2

Express your answer to two decimal places.

Part B

0.21 M CH3NH3I

Express your answer to two decimal places.

Part C

0.22 M KI

Express your answer to two decimal places.

2)

Part A

Rank the following compounds in order of decreasing acidstrength using periodic trends.

Rank the acids from strongest to weakest. To rank items asequivalent, overlap them.

LiH, H2O, HCl, HBr

Answer & Explanation Solved by verified expert
4.2 Ratings (863 Votes)
Answer 1 We are given Part A KCHO2 CHO2 020 M We need to put ICE chart since HCHO is weak acid CHO2 H2O HCOOH OH I 020 0 0 C x x x E 020x x x We know Ka for HCOOH 177104 So Kb 101014 177104 5651011 So Kb HCOOH OH CHO2 5651011 xx 020x We can neglect x in 020x since Kb value is too small So x2    See Answer
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