Determine the pH and BrO- ion concentrations in a solution that contains 0.0250 M HCl AND 0.750 M HBrO. Ka for HBrO is 2.5 x 10^-9
Determine the pH and BrO- ion concentrations in a solution that contains 0.0250 M HCl AND...
What is the pH of a 0.2 M CH3CH2NH3(BrO) solution? Kb(ethylamine CH3CH2NH2)=4.3 x 10^-4 Ka (HBrO) = 2.3 x 10^-9 The answer is "pH 11", but I keep getting 11.96. (i compared Ka to kb and used Kb since it is bigger) then solved for pH using only Kb. Please explain the correct way of doing it if i was doing it wrong. thanks!
Calculate the ratio of the molar concentrations of BrO- and HBrO required to achieve buffering at pH = 7.95. For HBrO, Ka = 2.3 × 10-9. [base]/[acid] = 4.9 [base]/[acid] = 3.16 [base]/[acid] = 0.50 [base]/[acid] = 0.61 [base]/[acid] = 0.20
Find the pH and concentrations of CH3CH2CH2CO2H and CH3CH2CH2CO2¬ in a 0.0250 M solution of butanoic acid.
What is the component concentration ratio, [BrO−]/[HBrO], of a buffer that has a pH of 8.02? (Ka of HBrO = 2.3 × 10−9)
What is the component concentration ratio, [BrO−]/[HBrO], of a buffer that has a pH of 8.07? (Ka of HBrO = 2.3 × 10−9)
Use two concentration tables to calculate the concentrations of all species present in a 0.0641 M solution of KBrO. The Ka for HBrO is 2.8E-9. What is the concentration of K+? What is the concentration of BrO-? What is the concentration of the conjugate species formed from the reaction of aqueous KBrO? What is the hydronium ion (H3O+) concentration? What is the hydroxide ion (OH-) concentration?
Calculate the pH of a solution that is 0.501 M HBrO and 0.372 M NaBrO. Ka of HBrO is 2.0 x 10^-9.
If the Ka of HBrO is 2.01 x 10-9, and the pH of a solution made from an HBrO and KBrO solution is 8.98. Determine the [KBrO] if the [HBrO] is 0.625 M.
.
?
Q1: Determine the pH solution contains 1.0 M of HCN (ka = 6.2 x 10-10) and HNO2 (ka = 4.0 x 10-4)? Correct answer is pH = 1.35
a) Determine the pH of an aqueous solution containing 0.750 mol/L thiophenol (C6H5SH), which is a weak acid. (Ka(thiophenol) = 3.2 x 10-7 ) b)Determine the pH of an aqueous solution containing 0.750 mol/L thiophenol and 0.500 mol/L hydrochloric acid, HCl(aq).