A 0.0450 M Ca(X)2 has a pH of 11.079. CaX)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 3. Write the balanced hydrolysis reaction of the unknown anion, X. Write your answer on your solution sheet C. Calculate the K, or K₂ of X. D. Given the following K, values of different weak acids, determine the identity of X".

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1. A 0.0450 M Ca(X)2 has a pH of 11.079. CaX)z 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 K, or K₂ 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
CH3COOH
1.80 x 105
HNO₂
4.00 x 104
2. Joey was tasked to ensure that an enzyme responsible for keeping his species from extinction remains biologically active. To do so,
he needs to store it in a buffer solution with a pH of 10.00. Unfortunately, only three buffer systems are available in their laboratory:
Buffer System Weak Acid Component K
Conjugate Base Salt
KYA
MUH
TWO
Benzoic acid, C6H5COOH 6.25 x 105 NaC6H5COO
Boric acid, H3B03
5.81 x 107 NaH₂BO3
Hydrogen cyanide, HCN 6.20 X 10-10 NaCN
Transcribed Image Text:1. A 0.0450 M Ca(X)2 has a pH of 11.079. CaX)z 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 K, or K₂ 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 CH3COOH 1.80 x 105 HNO₂ 4.00 x 104 2. Joey was tasked to ensure that an enzyme responsible for keeping his species from extinction remains biologically active. To do so, he needs to store it in a buffer solution with a pH of 10.00. Unfortunately, only three buffer systems are available in their laboratory: Buffer System Weak Acid Component K Conjugate Base Salt KYA MUH TWO Benzoic acid, C6H5COOH 6.25 x 105 NaC6H5COO Boric acid, H3B03 5.81 x 107 NaH₂BO3 Hydrogen cyanide, HCN 6.20 X 10-10 NaCN
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