Answers
(a)
Thermochemical equation :
HCl(aq) + NaOH(aq) 
NaCl(aq) + H2O(l) ∆H= -2.134kJ
Heat released by neutralization of acid = m.s.∆T
= (33+42)ml×1g/ml × 4.184J/g.℃ × (31.8-25.0)℃ = 2133.84 J
= 2.13384kJ = 2.134kJ
∆H = -2.134kJ (Answer)
(b)
Heat released due to neutralization of 33ml , 1.20M HCl
Number of moles of HCl = 1.20mol/L × 33×10-3L
= 3.96×10-2mol
∆H = - 2.13384kJ/(3.96×10-2mol)
= -53.8848kJ/mol
= - 53.88 kJ/mol. (Answer)
.Similar Solved Questions
1 answer
Pick two DNA tumor viruses (adenovirus and HPV)and briefly explain how their respective oncoproteins directly interfere...
Pick two DNA tumor viruses (adenovirus and HPV)and briefly explain how their respective oncoproteins directly interfere with the function of Retinoblastoma protein (pRb), or p53, or both. Make an illustration to help your explanation....
1 answer
Help me with the math. m e usually performed, e.g., 10°>10% 10% 10%, etc. Two-fold or...
help me with the math. m e usually performed, e.g., 10°>10% 10% 10%, etc. Two-fold or other dilution schemes can be applied as well. For accurate quantitation, it is important to use the selected dilution scheme consistently. correction factor is 10 (0.1 ml X 10-10 ml). If you plated 0.5 ...
1 answer
Premium for Financial Risk Ethier Enterprise has an unlevered beta of 1.15. Ethier is financed with...
Premium for Financial Risk Ethier Enterprise has an unlevered beta of 1.15. Ethier is financed with 50% debt and has a levered beta of 1.45. If the risk free rate is 4.5% and the market risk premium is 5%, how much is the additional premium that Ethier's shareholders require to be compensated fo...
1 answer
MAT 102 Directions: Answer the following questions showing all work, and giving explanations where necessary 1....
MAT 102 Directions: Answer the following questions showing all work, and giving explanations where necessary 1. A recent study claimed the average cholesterol level for all eighth grade students to be 190 with σ 30. finds their average cholesterol to be 197, Using . 5%, would this be enough ev...
1 answer
(1 point) Consider the complex inner product space C with the usual inner product Let -4i...
(1 point) Consider the complex inner product space C with the usual inner product Let -4i 4i and let w = span(vi,V2). (a) Compute the following inner products: (v.vi)- 2 (Vi, V2-12 (2. V)12 (b) Apply the Gram-Schmidt procedure to Vi and v2 to find an orthogonal basis (ui,u2l for W , u2=1112...
1 answer
Choose at least two medication from the following list and describe the medication in detail including...
Choose at least two medication from the following list and describe the medication in detail including but not limited to: 1. Generic name, Trade name, Classification of medication, Dosage, Routes. 2. Why the patient would take this medication, action of medication, side effects / adverse effects, a...
1 answer
Discuss all of the following: The overall application of the Transtheoretical Model (TM) to real-world behavioral...
Discuss all of the following: The overall application of the Transtheoretical Model (TM) to real-world behavioral change. Describe two of the five stages of the TM and provide an example of how each of the selected two stages functions in real-world behavioral change. Explain one of the TM concepts ...
1 answer
Incorrect Question 6 0/2.5 pts On January 1, 2015, Acorn Corporation bought a new machine. Acorn...
Incorrect Question 6 0/2.5 pts On January 1, 2015, Acorn Corporation bought a new machine. Acorn signed a note agreeing to pay $200,000 on December 31, 2017. The market interest rate for this note is 5%. What is the amount that the machine is put on the books for on January 1, 2015? $172,760 • ...
1 answer
Fed and Fasting state and affects on Liver, Adipose, and Skeletal muscle.
Compare and contrast the metabolic changes in each tissue under the absorptive state and fasting state (liver, adipose, skeletal muscle)....
1 answer
At January 1, 2021, Brainard Industries, Inc., owed Second BancCorp $16 million under a 10% note...
At January 1, 2021, Brainard Industries, Inc., owed Second BancCorp $16 million under a 10% note due December 31, 2023. Interest was paid last on December 31, 2019. Brainard was experiencing severe financial difficulties and asked Second BancCorp to modify the terms of the debt agreement. After nego...
1 answer
Refer to the Table. 7 - 3 16.JPG Both the demand curve and the supply curve...
Refer to the Table. 7 - 3 16.JPG Both the demand curve and the supply curve are straight lines. If 6 units are bought and sold, then total surplus is Group of answer choices $22 lower than it would be if the equilibrium number of units were bought and sold. $26 lower than it would be if the equilib...
1 answer
19. d. Pantothenic acid b. Riboflavin e. Thiamine C. Niacin How would a noncompetitive inhibitor interfere...
19. d. Pantothenic acid b. Riboflavin e. Thiamine C. Niacin How would a noncompetitive inhibitor interfere with a reaction involving the enzyme shown in Figure 1.1? a. It would bind to a. d. It would bind to b. b. It would bind to c. e. It would bind to d. It would be unable to bind because of its l...
1 answer
Answer only if you know otherwise leave for others Fill the table. propulsion rel rused Compressive...
answer only if you know otherwise leave for others Fill the table. propulsion rel rused Compressive device components device Type of engine LP îurbojet pamjet Rocket...
1 answer
An engineer wants to determine the effectiveness of a safety program. He collects annual loss of...
An engineer wants to determine the effectiveness of a safety program. He collects annual loss of hours due to accidents in 12 plants before and after the program was put into operation. Plant Before After Plant Before After 1 114 89 7 92 88 2 106 97 8 100 64 3 108 102 9 81...