f the following salts are each dissolved in water to form 0.1 M solutions at 25 °C, which will have a pH of 7.0?   I.   NaOCl   II.  KCl   III. NH4Cl   IV. Ca(CH3COO)2 Select one: a. II and III b. I and IV c. III and IV d. II only

Q: A solution is prepared by adding 300 mL of 0.500 M NH3 and 100 mL of 0.500 M HCl. Assuming that the…

A:

Q: What mass of HI must be present in 0.250 L of solution to obtain a solution with each pH value?a. pH…

A: Given, volume of solution = 0.250 L HI is a strong electrolyte and it ionizes in solution as,…

Q: A solution of household bleach contains 5.25% sodium hypochlorite, NaOCl , by mass. Assuming that…

A:

Q: Temperature-Dependence of Kw: The autoionization of water is an endothermic reaction. According to…

A:

Q: An unknown weak base with a concentration of 0.0910 M has a pH of 10.60. What is the Kb of this…

A: Kb is the dissociation constant of a weak base. Higher is its value, stronger is the base.

Q: The pH of a solution is a measure of its acidity or alkalinity. Specifically, pH = -log[H+] where…

A: pH= -log[H+] Using this formula [H+] can be calculated.

Q: 1. Does the addition of water (baking soda +water) alter the pH of weak acids/bases? How does it…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: A chemist dissolves 436. mg of pure barium hydroxide in enough water to make up 100. mL of solution.…

A: Given :  Mass of barium hydroxide = 436 mg  Volume of solution = 100. mL  To calculate :-  pH of…

Q: Calculate the pH of a solution

A:

Q: Imagine that you are in chemistry lab and need to make 1.00 L of a solution with a pH of 2.40. You…

A:

Q: (i) Calculate the mass of NaHCO3 (84.007 g mol) must be added to 4.00 g of K2CO3 (138.206 g mol1) to…

A: Solved in step 2.

Q: Consider sample of Sr(OH)2(aq) that was made by dissolving 0.239 g Sr(OH)2(s) in enough water to…

A:

Q: 1. What is the pH of an aqueous solution if the [OH -] = 1.35 x 10 -5 M? A. 8.87      B.  5.13…

A: Note - Since you have asked multiple questions, we will solve the first question for you. If you…

Q: 1. The [H30*] in a cabernet sauvignon wine is 5.9 × 104 M. What is the (-OH] in this wine? 2. The pH…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Milk of magnesia is a suspension of magnesium hydroxide in water. Although Mg(OH)2 is relatively…

A:

Q: Carbon dioxide dissolves in water according to the equations:CO2( g) + H2O(l…

A:

Q: You make a solution by dissolving 0.0010 mol of HCl in enough water to make 1.0 L of…

A: The molarity of a solution is defined as the number moles of solute per liter of solution. In the…

Q: A chemist dissolves 211. mg of pure perchloric acid in enough water to make up 380. ml. of solution.…

A:

Q: Given that Ka for HCN is 6.2×10−10, calculate Kb for CN-. Express your answer to two significant…

A: 1- First question, Calculate the value of Kb for weak base CN- ion :  We know that, Kb × Ka = Kw  Kb…

Q: The active ingredient of bleach such as Clorox is sodium hypochlorite (NaClO). Its conjugate acid,…

A: The word pH stands for the potency of hydrogen and it is used to measure the concentration of…

Q: Part A If 15.0 mL of glacial acetic acid (pure HC2H3O2; K₂ = 1.8 × 10−5) is diluted to 1.70 L with…

A:

Q: If 0.050 moles of gaseous HCl is bubbled in 1.0 liter of a solution that is 0.15 M in NH3 and 0.10 M…

A:

Q: A chemist dissolves 592. mg of pure barium hydroxide in enough water to make up 160. mL of solution.…

A: At 25 oC, the solubility of barium hydroxide, Ba(OH)2 is approximately 4.70 g / 100 mL water.  Since…

Q: Sodium hypochlorite (NaOCl, 74.44 g/mol) is a common ingredient in household bleach. What is the pH…

A:

Q: 1) Calculate percent concentration of a 150-gram solution containing 30 g Salt. 2) Calculate…

A: Formula used:  1) Percent concentration of a solution=( mass of solute/mass of solution) × 100 2)…

Q: A chemist must prepare 250.0 mL of nitric acid solution with a pH of 1.40 at 25 "C. He will do this…

A: Given that: The volume of nitric acid, V1 = 250 mL pH = 1.40 molarity of nitric acid, stock…

Q: A chemist dissolves 601. mg of pure barium hydroxide in enough water too make up 100. mL of…

A: Given : Mass of Ba(OH)2 = 601 mg = 0.601 g…

Q: A chemist dissolves 325. mg of pure potassium hydroxide in enough water to make up 50. mL of…

A:

Q: The active ingredient of bleach such as Clorox is sodium hypochlorite (NaClO). Its conjugate acid,…

A: The word pH stands for the potency of hydrogen and it is used to measure the concentration of…

Q: A concentrated hydrochloric acid solution contains 36.0% HCl (density = 1.18 g/mL). How many liters…

A:

Q: An unknown salt is either CH3NH3Br, NaClO4, NaF, or NH¼CI. When 0.1004 moles of the salt are…

A: The salts CH3NH3Br and NH4Cl are obtained from the strong acids HBr and HCl having weak bases CH3NH2…

Q: A solution of household bleach contains 5.25% sodium hypochlorite, NAOCI, by mass. Assuming that the…

A:

Q: The pyridinium ion (C5H4NH*) is a weak acid (Ka = 5.60 x 10-6). Calculate the pH of a solution that…

A: Given that, the pyridinium ion is a weak acid. The Ka of it is Ka = 5.60×10-6. 3.7 mL of 0.167 M of…

Q: Acetic acid (HC2H3O2) is a weak acid (Kg 1.8 x10). Calculate the pH of e 17.6 M HC2H3O2 solution. 1…

A: Acetic acid is a weak acid which dissociates partially .Alpha is degree of dissociation.

Q: In a 1.00 M  aqueous solution of sulfuric acid, H2SO4, three processes producing the hydronium ion…

A: In this question, we will select the correct Reaction which give the pH of the solution.  You can…

Q: Solution X 100 mL of 0.10 M HCI Solution Y 200 mL of 0.50 M NAOH Solution Z 300 mL of distilled…

A: The solutions given are,

Q: 1) Write a chemical reaction to show the neutralization of hydriodic acid (HI) by sodium hydroxide…

A:

Q: A chemist dissolves 646. mg of pure barium hydroxide in enough water to make up 60. mL of solution.…

A:

Q: A chemist dissolves 339. mg of pure hydroiodic acid in enough water to make up 180. mL of solution.…

A:

Q: 6. 7 8. 10 11 12 14 A chemist dissolves 311. mg of pure sodium hydroxide in enough water to make up…

A:

Q: solution of 3.71×10-3 M potassium hydroxide? pOH =  B.) What concentration of sodium hydroxide is…

A: Potassium hydroxide(KOH) is strong base. And strong base dissociated completely [OH-] = 3.71 ×10-3 M…

Q: Calculate the pH of each of the following strong acid solutions.   A. 5.55×10−2 M  HNO3. Express…

A:

Q: For a 0.40 M solution of HCIO4, calculate: [H+], pH, pOH, and [OH"] Determine all pH and pOH values…

A:

Q: 200 g of phosphoric acid (H3PO4) is dissolved into 10 L of water. pKa1=1.3, pKa2=7.21, pKa3=12.32.…

A: Phosphoric acid , H3PO4(aq) is a triprotic acid that can donate up to 3 protons.  The Ka values are:…

Q: A chemist dissolves 728. mg of pure barium hydroxide in enough water to make up 140. mL of solution.…

A: The concentration of any solution is defined as the ratio of no of moles of solute to that of volume…

Q: In a solution prepared by dissolving 0.100 mol of propionic acid in enough water to make 1.00 L of…

A: Given that 0.1 mol of propionic acid is dissolved to make 1 L solution . That is its concentration…

Q: Calculate the pH of each of the following strong acid solutions:(a) 0.0167 M HNO3, (b) 0.225 g of…

A: To calculate pH of each of strong acid solutions: (a). 0.0167 M HNO3

Q: 1. Glacial acetic acid, the most concentrated CH3COOH you can buy, has a concentration of 17.54 M.…

A: pH of acetic acid and other weak acids are given using the formula:- pH = (1÷2)(pKa - logC)  Ka of…

Q: Ph a b доби 24 Ph Ph 25 27 CI ОН НО CI 26 28

A:

Q: The dissociation of pure water into H3O+ and OH‐ ions depends on temperature. Calculate the pH at…

A: The dissociation of pure water, 2H2O(l)---> H3O+(aq)+ OH-(aq)  Given that concentration of ions…