The pH of a river was determined to be 8 and its CO32- concentration was 2.5 x 10-5 M. Given the dissociation constant of bicarbonate ion to be 4.7 x 10-11, what will be the alkalinity of the river? A) 5.32 x 10-5 B) 5.32 x 10-3 C) 5.37 x 10-25 D) 5.37 x 10-3

Q: A sample of nitric acid, HNO3 is titrated with NaOH. Which of the following would be the best…

A: This is a type strong acid vs strong base titration

Q: Which of the following acids is best to use to prepare a buffer with a pH of 4.5? НОC HАОСООН, Ка 3…

A:

Q: blood is 0.0016 M, determine the bicarbonate ion concentration required to buffer the pH of blood at…

A: We will use buffer equation

Q: A solution is prepared at 25 °C that is initially 0.48M in diethylamine ((C,H) NH, a weak base with…

A:

Q: A basic solution contains the iodide and phosphate ions that are to be separated via selective…

A: A salt will precipitate only when the reaction quotient is greater than solubility product value.…

Q: What is the pH of a solution made by adding 23.5 g of KC2H3O2 to 400 mL of 0.80 M HC2H3O2? (Ka for…

A: Molarity of KC2H3O2 is calculated as follows:

Q: A solution contains 0.321 M potassium fluoride and 0.165 M hydrofluoric acid (K₁ = 7.20 x 10-4). The…

A: A buffer solution is formed by the mixing of weak acid and its conjugate base. The pH of a buffer…

Q: A buffer solution is prepared in which the concentration of pyruvic acid, HC;H3O3, is 0.300 M and…

A: The solution given is a buffer solution of monoprotic pyruvic acid and its conjugate base pyruvate.

Q: A certain weak base has a Kp of 7.40X . What concentration of this base will produce a pH of 10.18?…

A:

Q: Hydroxylamine, HONH2, readily forms salts such as hydroxylamine hydrochloride which are used as…

A: Given: Kb of HONH2 is 9.1 x 10-9. Concentration of HONH2 is 0.025M.

Q: What is the pH of a buffer solution that is 0.159 M in hypochlorous acid (HCIO) and 0.121 M in…

A: Given: Concentration of hypochlorous acid (HCIO)=0.159 M Concentration of  sodium hypochlorite…

Q: Calculate the pH and pOH of 0.034 M lactic acid. (Ka = 1.38 x 10-4) Compute the molarity of Barium…

A:

Q: Calculate the pH of the solution formed when 45.0 mL of 0.100 M NaOH is added to 50.0 mL of 0.100 M…

A: Given: Volume of NaOH=45 mL Concentration of NaOH=0.1 M Volume of CH3COOH=50 mL Concentration of…

Q: Determine the pH at the point in the titration of 40.0 mL of 0.200 M HC4H,O2 with 0.100 M Sr(OH),…

A:

Q: 11.An acid-base equilibrium system is created by dissolving 0.20mol CH3COOH in water and diluting…

A:

Q: 50.00 mL of 0.20 M HNO2 (nitrous acid, K₂= 2.52 x 104) is titrated with a 0.20 M KOH solution. What…

A:

Q: Calculate the pH of a mixture that contains 0.22 M of HCNO and 0.10 M of HC6H5O. The Ka of HCNO is…

A: Given : Concentration of HCNO = 0.22 M And concentration of HC6H5O = 0.10 M Ka of HCNO = 3.5 X 10-4…

Q: A solution made with 0.137 moles of a triprotic acid (H3A, K1=9.15 × 10-2; Ka2=9.03 × 10-5;…

A: Diprotic acid pKa  = - log Ka  pKa1    = -log Ka1           =  - log (9.15 * 10-2 )          =…

Q: Given the following hydrolysis constants, which of the salts has the weakest parent ACID? K₂ or K,…

A: given-hydrolysis constants of given salts.SALTK2 OR K for…

Q: If 25.00 mL of a 0.09864 M CH3COOH (Ka = 1.8 x 10-5 ) solution is titrated with a 0.1027 M NaOH…

A:

Q: 34-35. The following questions refer to a solution that contains 1.00 M hydrofluoric acid, HF (Ka =…

A: The pH of the solution containing 1.00 M HF and 3.00 M HCN is to be calculated. Given: [HF] = 1.00 M…

Q: How many grams of dry NH4C1 need to be added to 2.00 L of a 0.600 mol L¬' solution of ammonia, NH3,…

A:

Q: 2.  The ionization constant for acetic acid is 1.8 x 10-5. How many grams of NaC2H3O2 must be added…

A: The Henderson Hasselbalch equation for acidic buffer is given as :

Q: A buffer solution is made such that the initial concentrations of lactic acid (HC3H5O3) and the…

A: We have to find pH of given buffer on addition of KOH

Q: If the dissociation constant of a weak acid is 8.1 x 100, at what ratio should you adjust the…

A:

Q: At pH 10.0, only 0.019 g of MgCl2 will dissolve per 1 L of solution. What is the Ksp of magnesium…

A: The pH is given as 10.0 Therefore pOH = 14-pH = 14-10.0 =4.0 Then the pOH = -log[OH-] So, [OH-] =…

Q: 1. A buffer solution is made from 0.4M CH3COOH and 0.6M CH3COO–. If the acid dissociation constant…

A:

Q: Calculate the pH of a buffer solution consisting of 0.12 M NH3 and 0.095 M NH4+. The Kb for NH3 =…

A: Concept Introduction: pH is the log concentration of protons and pOH is the log concentration of…

Q: Prepare 2.00 L of a 0.75 M phosphate buffer with a pH of 6.50 using two reagents from the table…

A: Phosphate buffer at pH 6.50 can be prepared using and .