Activity 11 This problem is on how to determine the pH of a salt. The salt is NaCIO. Find the pH of a solution that is 0.31 M NACIO. To do this: • Figure out which ions form in solution and determine if they are acidic or basic or neutral Write out the hydrolysis reaction. • Set up the equilibrium problem. Figure out if x is negligible. You will need the value of Kb for Cio. This is not in the table of Kb's. Use this method: Kw K,(conjugate base) = So K, (CIO") = K¸(acid) K (HCIO) Solve for x in the equilibrium problem. (Is x negligible in the denominator?) x = [OH']. Use this to get the pOH and then the pH.

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Chapter16: Acids And Bases
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Activity 11 This problem is on how to determine the pH of a salt. The salt is NaCIO.
Find the pH of a solution that is 0.31 M NaClO. To do this:
Figure out which ions form in solution and determine if they are acidic or basic or neutral
Write out the hydrolysis reaction.
Set up the equilibrium problem. Figure out if x is negligible.
You will need the value of Kb for Cl0'. This is not in the table of Kb's. Use this method:
K
K,(conjugate base) =
So K, (CIO") =
K¸(acid)
K¸(HCIO)
Solve for x in the equilibrium problem. (Is x negligible in the denominator?)
x = [OH]. Use this to get the pOH and then the pH.
Activity 12 This is another problem is on the pH of a salt. The salt is CH3NH3CI.
Find the pH of a solution that is 0.12 M methylamine hydrochloride, CH3NH3C1. To do this:
• Figure out which ions form in solution and determine if they are acidic or basic or neutral
• Write out the hydrolysis reaction.
• Set up the equilibrium problem. Figure out if x is negligible.
• You will need the value of Ka for CH3NH3*. This is not in the table of Ka's. Use this method:
K
K.(conjugate acid) = -
So K, (CH, ΝH,, ) -
K, (base)
K,(CH,NH,)
Solve for x in the equilibrium problem. (Is x negligible in the denominator?)
x= [H3O*]. Use this to get the pH.
Transcribed Image Text:Activity 11 This problem is on how to determine the pH of a salt. The salt is NaCIO. Find the pH of a solution that is 0.31 M NaClO. To do this: Figure out which ions form in solution and determine if they are acidic or basic or neutral Write out the hydrolysis reaction. Set up the equilibrium problem. Figure out if x is negligible. You will need the value of Kb for Cl0'. This is not in the table of Kb's. Use this method: K K,(conjugate base) = So K, (CIO") = K¸(acid) K¸(HCIO) Solve for x in the equilibrium problem. (Is x negligible in the denominator?) x = [OH]. Use this to get the pOH and then the pH. Activity 12 This is another problem is on the pH of a salt. The salt is CH3NH3CI. Find the pH of a solution that is 0.12 M methylamine hydrochloride, CH3NH3C1. To do this: • Figure out which ions form in solution and determine if they are acidic or basic or neutral • Write out the hydrolysis reaction. • Set up the equilibrium problem. Figure out if x is negligible. • You will need the value of Ka for CH3NH3*. This is not in the table of Ka's. Use this method: K K.(conjugate acid) = - So K, (CH, ΝH,, ) - K, (base) K,(CH,NH,) Solve for x in the equilibrium problem. (Is x negligible in the denominator?) x= [H3O*]. Use this to get the pH.
Activity 11 This problem is on how to determine the pH of a salt. The salt is NaCIO.
Find the pH of a solution that is 0.31 M NaClO. To do this:
Figure out which ions form in solution and determine if they are acidic or basic or neutral
Write out the hydrolysis reaction.
Set up the equilibrium problem. Figure out if x is negligible.
You will need the value of Kb for Cl0'. This is not in the table of Kb's. Use this method:
K
K,(conjugate base) =
So K, (CIO") =
K¸(acid)
K¸(HCIO)
Solve for x in the equilibrium problem. (Is x negligible in the denominator?)
x = [OH]. Use this to get the pOH and then the pH.
Activity 12 This is another problem is on the pH of a salt. The salt is CH3NH3CI.
Find the pH of a solution that is 0.12 M methylamine hydrochloride, CH3NH3C1. To do this:
• Figure out which ions form in solution and determine if they are acidic or basic or neutral
• Write out the hydrolysis reaction.
• Set up the equilibrium problem. Figure out if x is negligible.
• You will need the value of Ka for CH3NH3*. This is not in the table of Ka's. Use this method:
K
K.(conjugate acid) = -
So K, (CH, ΝH,, ) -
K, (base)
K,(CH,NH,)
Solve for x in the equilibrium problem. (Is x negligible in the denominator?)
x= [H3O*]. Use this to get the pH.
Transcribed Image Text:Activity 11 This problem is on how to determine the pH of a salt. The salt is NaCIO. Find the pH of a solution that is 0.31 M NaClO. To do this: Figure out which ions form in solution and determine if they are acidic or basic or neutral Write out the hydrolysis reaction. Set up the equilibrium problem. Figure out if x is negligible. You will need the value of Kb for Cl0'. This is not in the table of Kb's. Use this method: K K,(conjugate base) = So K, (CIO") = K¸(acid) K¸(HCIO) Solve for x in the equilibrium problem. (Is x negligible in the denominator?) x = [OH]. Use this to get the pOH and then the pH. Activity 12 This is another problem is on the pH of a salt. The salt is CH3NH3CI. Find the pH of a solution that is 0.12 M methylamine hydrochloride, CH3NH3C1. To do this: • Figure out which ions form in solution and determine if they are acidic or basic or neutral • Write out the hydrolysis reaction. • Set up the equilibrium problem. Figure out if x is negligible. • You will need the value of Ka for CH3NH3*. This is not in the table of Ka's. Use this method: K K.(conjugate acid) = - So K, (CH, ΝH,, ) - K, (base) K,(CH,NH,) Solve for x in the equilibrium problem. (Is x negligible in the denominator?) x= [H3O*]. Use this to get the pH.
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