Determine whether aqueous solutions of the following salts have a pH equal to, greater than, or less than 7; if pH > 7 or pH< 7, write a chemical equation to justify your answer. (a) NH4Br. (b) Na2CO3, (c) KF, (d) KBr, (e) AICI3, (f) Co(NO3)2.

Q: The pH of human blood is steady at a value of approximately 7.4 owing to the following equilibrium…

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Q: The pH of black tea is 5.5, while the pH of Coke is 2.5. Which of the following correctly describes…

A: To know the concentration of H+ ion , pH scale is introduced  Negative logaritham of H+ ion…

Q: The pH of an aqueous sodium fluoride (NaF) solution is __________ because __________   7; sodium…

A: Given: The compound is NaF.

Q: 1) Calculate the pH of a solution prepared by dissolving 2.20 g of sodium acetate, CHCOONA, in 78.0…

A: Given: mass of sodium acetate=2.20 gvolume of acetic acid=78.0 mLmolarity=0.10 MKa=1.75×10-5 To…

Q: A solution is prepared by dissolving 0.89 mol of a weak base in 1.00 L of water. The resulting pH at…

A: Dissociation of a weak base and pOH calculation

Q: The hydronium ion concentration of vinegar is approximately 4 × 10−3 M. What are the corresponding…

A: Given : hydronium ion concentration i.e [H3O+ ] = 4 X 10-3 M

Q: Calculate the pH of a solution formed by adding 5.00 grams of solid sodium formate, NaCHO₂, to 180.0…

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Q: You are studying a clear solution and you added the pH indicator methyl violet. The colour range of…

A: The color of a solution of pH 0.2 is needed to be determined on the addition of an acid-base…

Q: Describe how you would prepare a 0.1 M phosphate bufferwith a pH of 7.2. What ratio of conjugate…

A: The pKa values of phosphoric acid are: pKa1 = 2.1 pKa2 = 7.2 pKa3 = 12.3 Phosphoric acid (H3PO4) has…

Q: what is the pH of a 2.32 molar solution of NH4Cl(aq)? The Kb for NH3 is 1.2 x10^-5.

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Q: If the molarity of an unknown substance is expressed as 3.7 x 10-5, what is the pH of the substance?

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Q: Consider the following ions: sulfate (SO4 -2), acetate (C2H3O2 -),hydrogen carbonate(HCO3 -1),…

A: Amphoteric ion is defined as the ion which can donate H+ ion to a base or can accept H+ ion from an…

Q: The pOH of an aqueous solution of 0.428 M acetylsalicylic acid (aspirin), HC9H7O4, is

A: Aspirin is a monoprotic weak acid with formula HC9H7O4. Hence it will dissociate partially as per…

Q: What would be the pH if 1.11 moles of hydrofluoric acid (HF) were added to 2 liters of pure water,…

A: Given :          Number of moles = 1.11          pKa = 3.2                            HF         ⇔…

Q: Due to the pandemic Covid-19, the uses of hand sanitizers are very important among us. Predict and…

A: Hand sanitizer is a neutral solution. When red cabage indicator was added to it becomes purple in…

Q: The pH of a solution of 0.63 M pyridine is 9.51, what is the Kb of pyridine? What is the Ka of its…

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Q: The pH of a 0.70 mol/L weak base solution is 10.22. What is the Kb of the base?

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Q: A solution is made by dissolving 26.5 g of LIC3H5O2 in 500.0 mL of water. Using Kb(C3H5O2) = 7.7 x…

A: Given: The mass of LiC3H5O2 = 26.5 g The volume of the solution = 500.0 mL The Kb of C3H5O2- = 7.7 ×…

Q: Determine the pH of a buffer system that is 1.00 M CH3COOH (aq) and 1.00 M CH3COONa (aq). LOHO

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

Q: A student added 1.78g of Ca(OH)2(9) to 0.250 L of 0.200 molL"' HNO3(aq)- The mixture was carefully…

A: We have to calculate the pH of solution.

Q: The pH of a saturated solution of a metal hydroxide M(OH)2 is 10.500. Calculate the Ksp for this…

A: ksp : sloublity product Ksp = equilibrium between solids and  liquids

Q: What is the pH of the resulting solution

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Q: The nitrite ion is the conjugate base of the weak acid nitrous acid. The value of K, for NO, , is…

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Q: The pH value of the 5L aqueous solution prepared with 6.4 grams of a precious strong acid is 2. So…

A: Given, volume of acid solution = 5L Mass of acid = 6.4 g PH = 2  Molar mass of acid = ?

Q: For biological buffer systems, buffer acids capacity is usually greater than buffer bases capacity.…

A: A biological buffer is an organic substance in our body that helps in maintaining the body at the…

Q: If a sample of a certain solution is determined to have a [H3O+] concentration of 5.6×10^−12…

A:

Q: When 32.3 mL of 0.100 M Ba(OH)2 is mixed with 197.2 mL of 0.200 M HCl, the reaction goes to…

A: The reaction result in the formation of Barium chloride. The pH of a solution is the negative…

Q: For the acid HA, the acid dissociation constant, K, is 1.1 × 105. After 48 mL of 0.9 M N2OH is added…

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

Q: The acid constants of the polyprotic acid НЗASO4 are К_a1 %3D 5х10 ^-3, К_а2 - 8х10^-8, К_а3 %3D…

A:

Q: For a titration to be effective, the reaction must be rapid and the yield of the reaction must…

A: Interpretation- Blanks in the sentences are to be filled with appropriate options.

Q: The concentration of CH3COOH (pKa=4.75) in vinegar is about 1.0 M. With this what do you predict the…

A: pH is the negative logarithm of Hydrogen ion concentration. pH of a solution can be calculated as:…

Q: A solution is formed by adding 6.00 grams of solid potassium acetate, KC₂H₃O₂, to 200.0 ml of…

A: Answer: Basic nature of the solution will be the outcome of the hydrolysis of acetate ion which will…

Q: Calculate the pH of a mixture containing 0.23 M HONH2 and 0.44 M HONH3Cl. (Kb = 1.1 × 10–8)  What…

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Q: Calculate the pH of a solution prepared by dissolving 1.15g of sodium acetate, CH3COONa, in 95.5 mL…

A: Buffer solution is a aqueous solution consisting mixture of  weak acid and its conjugate base or a…

Q: Calculate the pH of a mixture made by adding 54.6 mL of 0.015 M HHNO3(aq) to 142.9 mL of water at…

A: Given,  The pH of a mixture made by adding 54.6 mL of 0.015 M HNO3(aq) to 142.9 mL of water at 26.6…

Q: What is the pH of a saturated solution of magnesium hydroxide (the active ingredient in the antacid…

A: Milk of magnesia which is a saturated solution of magnesium hydroxide has a pH of  about 10.0 (basic…

Q: During the fermentation of wine, a buffer system consisting of tartaric acid and potassium hydrogen…

A: Buffer solution: These are the solutions that consist of a mixture of a weak base and conjugate acid…

Q: If 10 mL of 0.1 M hypothetical acid, HA, is added with 10 mL of 0.1 M of the salt of its conjugate…

A: Answer: The mixture of acid HA and its conjugate base XA will be a buffer solution.

Q: 10. 0.02 mole of NH,OH and 0.03 mole of NH,Cl are mixed in 300 ml, what is the pH of the solution?…

A: this solutions form a basic buffer solution.

Q: 3b.) The Ka of acetic acid is 1.8 x 105. Calculate the pH of the following solutions: b. A solution…

A:

Q: 13 For an aqueous solution of hydrochloric acid with ph= 0.400, what would be the % mass of…

A: Given pH = 0.4 volume = 100 ml = 0.1 L density = 1g/ml

Q: One characteristic of blood that we rarely give a thought to is its pH. The pH of blood must be held…

A: Buffer is a solution that resists the change in its pH when small amount of acid or base is added to…

Q: Rainwater is acidic because CO2(g) dissolves in the water, creating carbonic acid, H2CO3. If the…

A: Given: Raindrop pH = 5.60 Sum of [H2CO3], [HCO3-] and [CO32-] = 1.0×10-5 M

Q: Can HCl, a strong acid, be added to pure water and there be no significant change in pH?

A: Addition of strong acid HCl will leads to dramatic change in pH.  When a strong acid HCl adds to…

Q: A student added 1.78g of Ca(OH)2(9) to 0.250 L of 0.200 molL-1 HNO3(aq)- The mixture was carefully…

A: Reaction: Ca(OH)2 (aq)-----&gt; Ca2+(aq) + 2OH- (aq) HNO3 ------&gt; H+ + NO3 -..........*2…

Q: The first acid ionization constant of the oxoacid H;PO, is 8 x 10-2. What molecular structure do you…

A: H3PO2 is a monoprotic acid in aque.

Q: If the KbKb of a weak base is 1.6×10−6,1.6×10−6, what is the pH of a 0.18 M0.18 M solution of this…

A: Concentration of the solution is 0.18 M. Kb = 1.6 x 10-6 The Ka value is calculated by following…

Q: The pH of an aqueous solution of 0.176 M ammonium bromide, NH Br (aq), is This solution is

A: 1. Solution - According to the question - pH = pH stand for potential of hydrogen, since pH is…

Q: What is the molarity of a solution made by dissolving 3.4 g of Ba(OH)2 in enough water to make 450.…

A:

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.