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![So, Total CHI] = .0.786 +0.0138 = 0.7898 - PH = -log [Ht]. = -log (7998]. = 0.097, nearly o.t. i option (a will be the correc](http://img.homeworklib.com/questions/f476a9e0-df4f-11eb-a91b-1d2a5438af78.png?x-oss-process=image/resize,w_560)
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Question 12 2.5 pts 7b) 6.00 g of solid Hl are added to 295 ml of...
D Question 5 2 pts Suppose 160 mL of 8.0 M NaOH(aq) is added to 167...
D Question 5 2 pts Suppose 160 mL of 8.0 M NaOH(aq) is added to 167 mL of 6.0 M HNO3(aq) to make a solution with a density of 1.1 g/mL and a specific heat of 4.1 J/gxK. If the initial temperature of both solutions is 295 K, what will be the final temperature (K)? Enter your answer as an integer. H(aq) + OH(aq) + H2O(1) AH° = -55.8 kJ/mol
1. 50.0 mL of a pH 6.00 carbonic acid buffer is titrated with 0.2857 M NaOH,...
1. 50.0 mL of a pH 6.00 carbonic acid buffer is titrated with 0.2857 M NaOH, requiring 17.47 mL to reach the second equivalence point. a. Calculate the molarity of carbonic acid and bicarbonate in the original buffer. (10 pts) Carbonic acid Bicarbonate: b. Calculate the pH of the solution after a total of 100.0 mL of 0.2857 M NaOH is added to the buffer and equilibrium is established. (10 pts) c. 7.833 g of solid lead(II) carbonate is added...
please show work 17) When 200, mL of water are added to 100. mL of 12 % KCl solution the final concentration of KCI...
please show work
17) When 200, mL of water are added to 100. mL of 12 % KCl solution the final concentration of KCI is (Assume the volumes add.) A) 12% B) 4.0% C) 36%. D) 6.0% E) 8.0% 18) What is the molarity of a solution containing 5.0 moles of KCI in 2.0 L of solution? A) 2.5 M B) 1.0 M C) 5.0 M C) 10. M E) 2.0 M 19) What is the molarity of a solution...
18a) A chemist combined 0.786 g of aluminum with 25.0 mL of a 0.21 M solution...
18a) A chemist combined 0.786 g of aluminum with 25.0 mL of a 0.21 M solution of CuCl2. Which substances will be present in the flask after the reaction has completed? A) Solid copper, solid aluminum, and aqueous aluminum chloride B) Solid copper and aqueous aluminum chloride C) Solid aluminum and aqueous copper(II) chloride D) Solid copper and a solution containing Cu2+ (aq), Al3+ (aq), and Cl− (aq)E) Solid aluminum and a solution containing Cu2+ (aq), Al3+ (aq), and Cl−...
A 25.00 g solid sample of Ca(OH)2 was added into 1250 mL of 0.400 M HCl aqueous solution. The temperature of the solutio...
A 25.00 g solid sample of Ca(OH)2 was added into 1250 mL of 0.400 M HCl aqueous solution. The temperature of the solution was decreased from 36.6oC to 20.0oC. Assuming the final volume of the solution is 1250 mL / the density of the solution is 1.000 g/mL / the heat capacity of the solution is 4.18 J/(oC*g). Please determine the molar heat of the reaction of the limiting reactant.
Question 1 a. How many mol of solid LiA would have to be added to 1.0...
Question 1 a. How many mol of solid LiA would have to be added to 1.0 L of a 4.974 M HA solution in order to obtain a buffer of 2.68? (The Ka for HA is 3.51⋅10^-7). b. Calculate the pH at the equivalence point for the titration of 2.480 M B: (a weak base with pKb = 6.28) with 2.480 M HCl. c. What volume of water must be added to a 10.14 mL solution of a pH =...
Calculate the pH change that results when 12 mL of 5.9 M NaOH is added to...
Calculate the pH change that results when 12 mL of 5.9 M NaOH is added to 760. mL of each the following solutions. (See the appendix.) (b) 0.10 M NH4Cl (c) 0.10 M NH3 (d) a solution that is 0.10 M in each NH4+ and NH3
4. (12 pts) A buffer is created by mixing 50.0 mL of 0.50 M C6H5N and...
4. (12 pts) A buffer is created by mixing 50.0 mL of 0.50 M C6H5N and 40.0 mL of 1.0M HC.HSNCI. What is the final pH of the solution if 20.0 mL of 0.50 M KOH is added to the buffer at 25 °C? K(C6H5N) - 1.4 x 10-9 To receive full credit, all work must be explicitly shown, including the relevant neutralization and hydrolysis chemical reactions that are occurring, and do not use the Henderson-Hasselbalch equation.
A 5.40 g sample of NH Cl was added to 24.5 mL of 1.19 M NaOH...
A 5.40 g sample of NH Cl was added to 24.5 mL of 1.19 M NaOH and the resulting solution diluted to 0.100 L. (Assume K-1.01x 10,) (a) What is the pH of this buffer solution? 8.86 (b) Is the solution acidic or basic? acidic basic (c) What is the pH of the solution that results when 3.20 mL of 0.033 M HCI is added to this buffer solution? 4 5.15
1. Calculate the molarity of the following solutions: a. 318 g Mg Br, in 859 ml...
1. Calculate the molarity of the following solutions: a. 318 g Mg Br, in 859 ml solution b. 8.28 g Ca(C,H,O,), in 414 ml solution c. 31,1 g Al,(80.), in 766 ml solution d. 59.8 g CaCl, in 100 ml solution e. 313.5 g LICIO, in 250 ml solution | 849 Calculate the moles of solute needed to prepare each of the following: 2. LOL of a 3.0 M NaCl solution b. 0.40 L of a 1.0 M KBr solution...
D Question 5 2 pts Suppose 160 mL of 8.0 M NaOH(aq) is added to 167 mL of 6.0 M HNO3(aq) to make a solution with a density of 1.1 g/mL and a specific heat of 4.1 J/gxK. If the initial temperature of both solutions is 295 K, what will be the final temperature (K)? Enter your answer as an integer. H(aq) + OH(aq) + H2O(1) AH° = -55.8 kJ/mol
1. 50.0 mL of a pH 6.00 carbonic acid buffer is titrated with 0.2857 M NaOH, requiring 17.47 mL to reach the second equivalence point. a. Calculate the molarity of carbonic acid and bicarbonate in the original buffer. (10 pts) Carbonic acid Bicarbonate: b. Calculate the pH of the solution after a total of 100.0 mL of 0.2857 M NaOH is added to the buffer and equilibrium is established. (10 pts) c. 7.833 g of solid lead(II) carbonate is added...
please show work
17) When 200, mL of water are added to 100. mL of 12 % KCl solution the final concentration of KCI is (Assume the volumes add.) A) 12% B) 4.0% C) 36%. D) 6.0% E) 8.0% 18) What is the molarity of a solution containing 5.0 moles of KCI in 2.0 L of solution? A) 2.5 M B) 1.0 M C) 5.0 M C) 10. M E) 2.0 M 19) What is the molarity of a solution...
4. (12 pts) A buffer is created by mixing 50.0 mL of 0.50 M C6H5N and 40.0 mL of 1.0M HC.HSNCI. What is the final pH of the solution if 20.0 mL of 0.50 M KOH is added to the buffer at 25 °C? K(C6H5N) - 1.4 x 10-9 To receive full credit, all work must be explicitly shown, including the relevant neutralization and hydrolysis chemical reactions that are occurring, and do not use the Henderson-Hasselbalch equation.
A 5.40 g sample of NH Cl was added to 24.5 mL of 1.19 M NaOH and the resulting solution diluted to 0.100 L. (Assume K-1.01x 10,) (a) What is the pH of this buffer solution? 8.86 (b) Is the solution acidic or basic? acidic basic (c) What is the pH of the solution that results when 3.20 mL of 0.033 M HCI is added to this buffer solution? 4 5.15
1. Calculate the molarity of the following solutions: a. 318 g Mg Br, in 859 ml solution b. 8.28 g Ca(C,H,O,), in 414 ml solution c. 31,1 g Al,(80.), in 766 ml solution d. 59.8 g CaCl, in 100 ml solution e. 313.5 g LICIO, in 250 ml solution | 849 Calculate the moles of solute needed to prepare each of the following: 2. LOL of a 3.0 M NaCl solution b. 0.40 L of a 1.0 M KBr solution...
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