.ll TEW 4:17 PM Q 41% O 4 14.66 Calculate the pH of solutions prepared by: (a) Dissolving 4.8 g of lithium hydroxide in water to give 250 mL of solution (b) Dissolving 0.93 g of hydrogen chloride in water to give 0.40 L of solution (c) Diluting 50.0 mL of 0.10 M HCl to a volume of 1.00 L (d) Mixing 100.0 mL of 2.0 × 10³M HCI and 400.0 mL of 1.0 × 10 M HCIO4 (Assume that volumes are additive.)

Q: Methylamine, CH3NH2, is one of several substances that give herring brine its pungent odor.  In…

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Q: What is the pH of a 0.660 M solution of NaCN (Ka of HCN is 4.9 × 10⁻¹⁰)?

A: The pH will be 11.56.

Q: How many moles of H3O+ or OH- must you add to 87.5 mL of HA solution to adjust its pH from 8.92 to…

A: Initial pH = 8.92 Therefore [H+] = 10^(-pH) = 10^(8.92) = 0.012 * 10^ -7 Final pH = 6.33Therefore…

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A: Given data is as follows: The mass of C6H5NH3+Cl- = 8.50 g The volume of C6H5NH2 = 750 mL The…

Q: 4. What mass of HCI(g) must be dissolved in 1.50 Lof a NaOH solution having a pH of 11.176 to…

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Q: A solution is made by dissolving 0.06100 moles of Ba(OH)2 in enough water to make 250.0 mL of…

A: Given, moles of Ba(OH)2 = 0.06100 moles Volume of the solution = 250.0 mL = 0.250 L pH of the…

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Q: Calculate the pH of a solution that is made by dissolving 0.174 g of CSOH (M.M. 149.912 g/mol) in…

A: CsOH is a strong base. So, it will dissociate completely into ions. Now, pH can be calculated by…

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

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Q: 5. Calculate the pH of an aqueous solution that is 5.00% HCI by density of 1.015 g/mL? mas

A: 5) given = 5.00 % w/w means 100 g solution contains 5 g HCl Density of solution = 1.015 g/mL Volume…

Q: What volume (in mL) of 8.84 M HBr would be required to make 300.0 mL of a solution with a pH of…

A: Given that: Molarity of HBr = 8.84 M Volume of solution (Vsol) = 300.0 mL = 0.3 L pH = 2.97 Volume…

Q: The benzoate ion, C6H5COO-, is a weak base with Kb = 1.6 * 10-10. How many moles of sodium benzoate…

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Q: A solution of sodium acetate (NaCH3COO0 has a pH of9.70. What is the molarity of the solution?

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Q: 4) What is the mass of NaOH should be present in 0.250 L of solution to obtain a solution to obtain…

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Q: What

A: We will use concept of pH of salt

Q: 10

A: NaCN is a salt of strong base and weak acid. The pKa of HCN can be calculated as follows-

Q: How many moles of H₃O⁺ or OH⁻ must you add per liter of HA solution to adjust its pH from 3.15…

A: pH = -log [H+] pOH = -log [OH-]

Q: The following diagrams represent aqueous solutions of twomonoprotic acids, HA (A = X or Y). The…

A: a) Since the stronger acid will produce more number of H3O+ ions in the solution  Hence the acid…

Q: A pH of an aqueous solution at 25 C is 8.80. What is the [OH-] concentration in this solution? Kw =…

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Q: If the Kb of a weak base is 6.8*10^-6 what is the pH of 0.18M solution of this base

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Q: An aqueous solution at 25 °C is 8.29% LİOH by mass and has a density of 1.092 g/mL. What is the pH?

A: Assuming we have 100 g of solution  hence mass of LiOH = mass % X mass of solution / 100 = 8.29 X…

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Q: What volume of a concentrated HCl solution, which is 36.0% HCI by mass and has a density of 1.179…

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Q: Suppose that a benzoic acid (C,H,COOH) solution has a pH of 3.15. Which of these substances would…

A: Given substances: KCl C6H5COONa NaI HBr We have to find the substance that would increase the pH…

Q: Hygrogen cyanide gas (HCN), a power respiratotoxic, inhibitor, is highly  toxic.   It is a very weak…

A: HCN reacts with NaOH as follows:    HCN + NaOH → NaCN + H2O 1 mole of HCN reacts with 1 mole of NaOH…

Q: What is the pH of a 0.730 M solution of NaCN (Ka of HCN is 4.9 × 10⁻¹⁰)?

A: Interpretation: The pH of a 0.730 M solution of NaCN is to be determined. Ka of HCN = 4.9 × 10-10

Q: Benzoic acid, C6H5COOH, is a weak acid (Ka = 6.28*10-5). If I dissolve 1.22 g of C6H5COOH in enough…

A: Molarity of benzoic acid (M)= No of moles / Volume in Liter No of moles = Mass / molar mass = 1.22 /…

Q: At 25 °C, how many dissociated OH– ions are there in 1291 mL of an aqueous solution whose pH is…

A: The number of dissociated hydroxide ions are present in given solution is determined as,

Q: What volume (in mL) of 8.84 M HBr would be required to make 300.0 mL of a solution with a pH of…

A: Given data of the following, M1 = 8.84 M , V1 = ? For second case, pH = 3.15, V2= 300.0 ml

Q: What volume (in mL) of 15.8 M HNO3 would be required to make 500.0 mL of a solution with a pH of…

A: Here, we have to find the volume of 15.8 M HMNO3 that would be required to make 500.0 mL of a…

Q: What volume (in mL) of 9.2 M HCIO, would be required to make 500.0 mL of a solution with a pH of…

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Q: A student measures the temperature of an NaOH solution to be 40°C. The student then measures the pH…

A: Given, temperature of NaOH solution = 40°C pH of solution of NaOH = 11.69

Q: dissociated H+H+ ions

A:

Q: "Vhen 4.73 g of the weak acid HC6H4CIO is dissolved in 800 mL of olution, he pH is 5.25. What is the…

A: Ka is acid dissociation constant.

Q: What volume (in mL) of 15.8 M HNO, would be required to make 500.0 mL of a solution with a pH of…

A: Given:  15.8 M HNO3 500.0 mL of a solution with a pH of 3.20

Q: 9) What mass of HNO, is needed to make 315.0 mL of a solution with a pH of 2.27?

A:

Q: 4. 4.00 g KOH was added to the less basic solution in number 3. What will be the resulting pH of the…

A: Given, Mass of NaOH = 5.00 g  Mass of Ba(OH)2 = 5.00 g  Gram molar mass of NaOH = 40 g/mol  Gram…

Q: Whats pH of a solution that is 0.010 M in HClO Ka = 3.5 × 10–8 and 0.010 M in HCl?

A: Since HCl is a strong acid, it is completely dissociated into H+(aq) and Cl-(aq).  Hence [H+(aq)] =…

Q: siven a solution with a hydroxide ion (OH") concentration of 4.30x108 M, what is the pH? s the…

A: pH + pOH = 14 pOH =  -log [OH −]          = -log[4.30 X 10-8]          = 7.37 pH = 14 - pOH       =…

Q: How many mL of 0.500 M NaOH should be added to 10.0 g tris HCI to give a pH of 7.60 in a final…

A: Here is your answer...........

Q: a sodium hydroxide solution has a ph of 11.40 waht is the [h3o+] in this solution?

A: 1) POH = -log[OH-] Where [OH-]= concentration of OH- 2) POH + PH = 14 3) PH = -log[H3O+]…

Q: Propionic acid, C2H5COOH (Ka = 1.34 × 10−5), is used in the manufacture of calcium propionate, afood…

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Q: The pH of an aqueous solution at 25.0 °C is 12.36. What is the molarity of H + in this solution?

A: Given information,      The pH of an aqueous solution at 25.0 °C is 12.36

Q: What is the pH of a 0.810 M solution of NaCN (Ka of HCN is 4.9 × 10⁻¹⁰)?

A: Given : Concentration of NaCN = 0.810 M And Ka of HCN = 4.9 X 10-10  Since NaCN is a completely…

Q: What is the PH of a solution containing 10 mM NH4CI in a volume of 100 ml ?

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Q: 32)The pH of an aqueous solution at 25.0°C is 5.33. What is the molarity H3O+ in this solution?

A: Given:       pH = 5.33 We need to find out the molarity of hydronium ion concentration

Q: volume

A: