Which of the following is the pH of the solution containing 0.01 mol CH3COOH and 0.820 grams of NaCH3COO in 100 mL of water? (Ka: 1.76x10-5, Ma (NaCH3COO): 82 g / mol) A. 7.25 B. 3.63 C. 5.12 D. 4.75

Q: Calculate the pH of a solution containing 0.00261 M hypochlorous acid (HCIO) and 0.00256 M sodium…

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Q: ion of a weak base (B:) is made. The solution has a pH of 11.49. Calculate the Kb of our answer in…

A: pH = -log[H+]  pOH = -log[OH-]  Also pH = 14-OH  Kw = 1.0×10-14 = [H+][OH-]

Q: How many grams of NH4Cl (53.49 g/mol) must be dissolved in 0.612 L of solution in order to obtain a…

A: First we would Calculate molarity using pH and Ka value of NH4+ .  Them using molarity and volume we…

Q: I place 20.0 mL of deionized water and 2.0mL of 0.10 M NaOH in a beaker. What is the calculated pH?

A: The reaction of NaOH with water is NaOH + H2O ------> Na+ + OH- 0.10M NaOH gives 0.10M Na+ and…

Q: 25.0 g of propionic acid and 36.2 g sodium propionate are mixed in 1.00 L of solution. What is the…

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Q: A solution of washing soda (sodium carbonate, Na2CO3) has a hydroxide ion concentration of 0.0040…

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Q: What is the pH of a solution that is 0.12 M in HOCl and 0.20 M in NaOCl?  Ka of HOCl is 3.5 x 10-8…

A: Given, 0.12 M in HOCl and 0.20 M in NaOCl

Q: Imagine that you are in chemistry lab and need to make 1.00 LL of a solution with a pH of 2.50. You…

A: From the given parameters: The available reagents are: volume of HCl = 100 mL molarity of HCl =…

Q: A stock solution is made by dissolving X grams of KOH in water and making it up to the mark in a…

A: The solution which resists change in pH of the solution is called a buffer solution. The resistance…

Q: What is the pH of a solution of 50.00 ml of 0.07500M hydroxyacetic acid, K, = 1.48 x 10, after the…

A: Volume of Hydroxyacetic acid (HA) = 50.0 mL Molarity of Hydroxyacetic acid (HA) = 0.07500 M Ka of HA…

Q: tnscape Inve Question 6 of 6 What is the pH of a 0.690 M solution of NaCN (Ka of HCN is 4.9 x 10…

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Q: envellum.ecollege.comcourse.htmcourseld 1579184081HeplD 90390chbif5460adf75d7c70e7841d3d34 10001…

A: Moles of HNO3 = molarity of HNO3 X volume of HNO3 solution in L Volume of HNO3 solution in L = 3.9 /…

Q: Calcium carbonate is a common ingredient in antacids that reduces the discomfort associated with…

A: Given data Mass of CaCO3 = 39 mg pH of HCl solution = 1.60  Neutralization of CaCO3 using acid HCl…

Q: A 4.0 M HCl solution is used to titrate a 2.0 M KOH solution.   a.   How many ml of the HCl…

A: To  solve the question regarding neutralization reaction.

Q: estion 22 A solution is made by combining 46.5 mL of a 0.83 M HNO2 solution and 46.5 mL of a 0.62 M…

A: Volume of HNO2 = 46.5 ml Molarity of HNO2= 0.83 M Volume of NaNO2 = 46.5 ml Molarity of NaNO2 = 0.62…

Q: Nitrogen is discharged from wastewater treatment facilities into rivers and streams, usually as NH₃…

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Q: What is the pH of a solution that is prepared by dissolving 7.50 grams of pyruvic acid (formula…

A: Calculation for finding out the molarity of pyruvic acid:

Q: A scientist is looking for the K, of an unknown acid, HA. When 5 moles of HA and 10 moles of NaA are…

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Q: chemist must prepare 450.0 mL of nitric acid solution with a pH of 2.00 at 25 °C. He will do this in…

A: Given: Concentration of stock nitric acid solution = 7.0 M pH of the solution required = 2.00  And…

Q: Aspirin (acetylsalicylic acid) is absorbed from the stomach in the free (non-ionized) acid form. If…

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Q: 32.92 mL of 0.24 M NAOH is added to 23.71 mL of a 0.17 M HCI. What is the pH of the solution? Please…

A: Calculate the number of moles of NaOH and HCl. Number of moles = Concentration (M) × Volume…

Q: Calculate the theoretical ph of each solution a. 0.200M sodium bicarbonate (carbonic scid: pka1=…

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Q: What is the pH of a solution prepared by dissolving 3.00 g of the weak acid HA (molar mass - 13812…

A: Given that,  Amount of weak acid HA to be dissolved = 3.0 g Moles of weak acid HA to be dissolved =…

Q: In the lab you have 500 ml of a 0.45 M Na2HPO4 stock solution. If you take 10 ml of the solution and…

A: pH is used to determine the concentration of hydronium ion.

Q: Calcium carbonate is a common ingredient in antacids that reduces the discomfort associated with…

A: Given data,Mass of CaCO3=26.0mg=0.026gpH=1.95

Q: Sona Peycholegy Research P x app. 101edu.co Question 8 of 9 Calculate the pH when 40.0 mL of 0.150 M…

A: Given:  Concentration of HNO3 = 0.150 M  Volume of HNO3 solution= 40.0 ml = 0.04L  Concentration of…

Q: . pH = 7.40 (the normal pH of blood) pH = 15.3 pH = ‐ 1.0 pH = 3.20 pOH = 5.0 pOH = 9.6

A: 1. Given that the pH of solution is 7.40. If pH of the solution is greater than 7, then it is basic.…

Q: What is the pH of a 0.780 M solution of NaCN (Ka of HCN is 4.9 × 10⁻¹⁰)?

A: 1) Construct the chemical equationCN- + H2O <=> HCN + OH-2) ICE Table               [CN-]…

Q: 100 mL of a solution of hydrochloric acid with pH 5.0 is diluted to 1 L . What is the pH of the…

A: The pH is the parameter that is used to describe the acidic or basic nature of a chemical compound.…

Q: Calcium carbonate is a common ingredient in antacids that reduces the discomfort associated with…

A: a) Given : pH of the acid = 1.64  And mass of CaCO3 taken = 16.0 mg = 0.0160 g…

Q: 3. What is the pH range of bases, to ? 4. Which 2 astronomers believed the Earth revolved around the…

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Q: What is the pH of a 9.34 X CIO4 solutiön? (the answer should be entered with 3 significant figures;…

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Q: Which of the following is/are neutral? a. tap water b. Solution with pH = 6.5 c. Solution with pH…

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Q: youtove 20mt Ph=14 Ngon Solutton. Hous Many mt opphaned satution would neutralize it completely? 9…

A: Sodium hydroxide reacts with hydrochloric acid, to form sodium chloride and water. The equation for…

Q: I place 20.0 mL of deionized water and 2.0 mL of 0.10 M HCl into a beaker. What is the calculated…

A: The total volume of solution present in the beaker is 22.0 mL.

Q: At 40°C, the pH of pure water is 6.77. a) What is [H3O+] in pure water at 40°C?   b) What is the…

A: pH is a scale to measure the concentration of hydrogen ions. The negative logarithm of hydrogen ion…

Q: ydrangea plants produce flowers that can be either blue or pink in color. the flowers will be blue…

A: Hydrangea produces flowers during early spring to late autumn. Most of the species have white…

Q: A1 liter solution is made by adding 0.5983 moles NaH2PO4 and 0.5456 moles NazHPO4. What will be the…

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Q: Aspirin (acetylsalicylic acid) is absorbed from the stomach in the free (non-ionized) acid form. If…

A: Given : pKa of aspirin=3.50 pH of stomach=2.95

Q: What is the pH of a solution made by pipetting out 10.0mL 0.500M HCI to a volumetric flask and…

A: Initial volume = 10.0 ml Initial molarity = 0.500 M Final volume = 1.00 × 103ml

Q: Referencen) What volume of 0.0830 M NaOH must be added to 100. mL of 0.100 M NAHC0, to reach a pH of…

A: Volume of NaOH needed can be calculated from the Henderson hasselbalch equation the concentration of…

Q: What volume of a 15.0% by mass NaOH solution, which has a density of 1.116 g/mL, should be used to…

A: Interpretation: The volume of a 15% by mass NaOH solution is to be determined. Given:  Density =…

Q: chemist dissolves 312. mg of pure sodium hydroxide in enough water to make up 170. mL of solution.…

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Q: O o.IMNCI pH.- log Co-1) )o O0I MHCL pH. - log Co.0or] PH. 14.2.873 a) oIM CH CODH 1-8K10-. o le…

A: pH is a scale used to specify the acidity or basicity of an aqueous solution. The range goes from 0…

Q: Ascorbic acid (Vitamin C, CHO) is a weak diprotic acid, with K = 6.8x10 and K = 2.7x10. What is the…

A: The dissociation constants for ascorbic acid are 6.8×10-5 and 2.7×10-12. Molar mass of Ascorbic acid…

Q: You have 50.0 mL 0.10 M N3PO4 to whihc you add 50.0 mL 0.19M NaH2PO4. What is the pH of this…

A: Calculation of no. of mol of H3PO4: No. of mol=Molarity×Volume=0.10 mol/L×50.0×10-3L=0.005 mol…

Q: Calcium carbonate is a common ingredient in antacids that reduces the discomfort associated with…

A: mass of CaCO3 =0.038 g pH = 1.67

Q: Calculate the theoretical pH of each solution. a. 0.200 M sodium bicarbonate Carbonic acid: pKa1 =…

A: #(a): [NaHCO3(aq)] = 0.200 M or 0.200 mol/L For HCO3-(aq), kPa2 = 10.25 and pKb2 = 14-pKa1 = 14 -…

Q: a typical black coffee contains caffeine in a concentration of 0.0024 M. If the coffee's pH is…

A: