1. A 0.0250 M Ca(X)₂ has a pH of 8.049. Ca(X)₂ is composed of a Ca²+ cation and an unknown anion X, which undergoes hydrolysis. A. Write the balanced dissociation reaction of Ca(X)2 into its ions. Write your answer on your solution sheet B. Write the balanced hydrolysis reaction of the unknown anion, X. Write your answer on your solution sheet C. Calculate the K₁, or K, of X. D. Given the following K, values of different weak acids, determine the identity of X. Weak acids Ka HIO 2.00 x 10-11 HCN 6.17 x 10-10 CH₂COOH 1.80 x 10-5 HNO2 4.00 x 104

Chemistry & Chemical Reactivity
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Chapter17: Principles Of Chemical Reactivity: Other Aspects Of Aqueous Equilibria
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1. A 0.0250 M Ca(X)₂ has a pH of 8.049. Ca(X)₂ is composed of a Ca²+ cation and an unknown anion X, which
undergoes hydrolysis.
A. Write the balanced dissociation reaction of Ca(X)2 into its ions. Write your answer on your solution sheet
B. Write the balanced hydrolysis reaction of the unknown anion, X. Write your answer on your solution sheet
C. Calculate the K₁, or K, of X.
D. Given the following K, values of different weak acids, determine the identity of X.
Weak acids
Ka
HIO
2.00 x 10-11
HCN
6.17 x 10-10
CH₂COOH
1.80 x 105
HNO2
4.00 x 104
Transcribed Image Text:1. A 0.0250 M Ca(X)₂ has a pH of 8.049. Ca(X)₂ is composed of a Ca²+ cation and an unknown anion X, which undergoes hydrolysis. A. Write the balanced dissociation reaction of Ca(X)2 into its ions. Write your answer on your solution sheet B. Write the balanced hydrolysis reaction of the unknown anion, X. Write your answer on your solution sheet C. Calculate the K₁, or K, of X. D. Given the following K, values of different weak acids, determine the identity of X. Weak acids Ka HIO 2.00 x 10-11 HCN 6.17 x 10-10 CH₂COOH 1.80 x 105 HNO2 4.00 x 104
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