Check Example #5) 10mL of 3.0M HBr is mixed with 20mL of 2.0M KOHHBr +KOH → H₂O + KBrAHreaction=AHproducts-AHreactantsSubstanceH₂OHBrKBrKOHHere's the first reactant: 10mL of 3.0M HBr10* 3= 0.03 mol H Brקסיטן(-286+-392)+(-36.27 +2 480)== -161.8 kJ1000Let's calculate the limiting reagent to determine how many mols of water will be formed:*-Let's do this for the second reactant, 20mL of 2.0M KOH202 = 0.04 molk@HCalculate the amount of energy released:28636.20·03 * - 161.8=-4-854 kAHf in kJ/mol-392480 Example #6) 250mL of 2.0M HBr is mixed with 300mL of 1.5M KOHHBr + NaOH > H2O + NaBrSubstanceH₂OHBrNaBrNaOHAHreaction=AHproducts-AHreactants(-286 +-362)-(-36.2 +-42607)= -18531 kJHere's the first reactant: 250mL of 2.0M HBr250 * 21000* 2 = 0.5 mol H BrLet's calculate the limiting reagent to determine how many mols of water will be formed:1000Let's do this for the second reactant, 300mL of 1.5M KOH3002 = 0.6 mol koff*Calculate the amount of energy released:AHf in kJ/mol-28636.2-362-8-426.70.5 * - 1851 = -192.55k

Using the stoichiometry of acid to base, moles of water formed can be calculated which helps in…

Answered: Example #5) 10mL of 3.0M HBr is mixed…

Example #5) 10mL of 3.0M HBr is mixed with 20mL of 2.0M KOH HBr + KOH → H₂O + KBr Substance H₂O HBr KBr KOH AHf in kJ/mol - 286 36.2 -392 - 480

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: Mixture of NH,CI, NaCl, SiO, Iron Shavings First Separation Technique First Separated Component…

A: The mixture given contains ammonium chloride (NH4Cl), sodium chloride (NaCl), silicon dioxide (SiO2)…

Q: Gold spacer in liquid cell TEM is used for Select one: a. All of these b. Liquid Flow c. Liquid…

A: TEM is a transmission electron microscopy. It is a technique used to determine the structure of…

Q: What are diffusion controlled method?

A: Diffusion-controlled method: Diffusion-controlled Method involves the reactions in which the rate of…

Q: What is a rotameter? An orifice meter?

A: Rotameter - It is a form of variable area flow meter, used to measure the volumetric flow rate of…

Q: The ___________ color test is used to locate and characterize seminal stains.

A: The seminal stain has a yellowish-grey hue and resembles the shape of a counter map as seen with the…

Q: How JAR test is performed in lab? And what is its significance?

A: JAR test is an important test performed in laboratory. It is used to select and quantify a treatment…

Q: 4. On observation of absorbant changes in a chemical reaction at a maximum wavelength of 540 nm are…

A: S.No. Absorbance Time (min-1) 1 0.119 0 2 0.108 20 3 0.096 47 4 0.081 80 5 0.071 107 6…

Q: One of the most important methods of sedimentation through which we obtain layers with high adhesion…

A: One of the most important methods of sedimentation through which we obtain layers with high adhesion…

Q: For PV = nRT to be valid, the gas has to act______________

A: For PV=nRT to be valid, the gas has to act as an Ideal gas. (or ) Ideally. All gases are non-ideal.…

Q: 2. Plain water Materials needed 1 glass Water Instructions: 1. Fill the glass with water to the top…

A: Two questions based on surface tension, which are to be accomplished.

Q: The corrosion rate of plate 100 cm of steel (Aromic massuss B45 g/mole, density 78 g/cm) is equal to…

Q: Select the phenomenon that is being described by each statement CHOICES: Breaking Agglomeration…

A: All the terms mentioned in the question are the processes which are involved in the emulsion…

Q: B\ The mean stress during a fatigue test was (100 Mpa) and the stress range was (50 Mpa). Compute:…

Q: Test for I ion You again have a new sample of known test solution and you will add 6 M HCI. You will…

A: In this piece of the examination, you will utilize six arrangements (containing either a halogen or…

Q: B. Cobalt lons 7. Color of CoCl2 (ag) 8. Color after the addition of HCL (ag) 9. Color after the…

A: A question based on equilibrium concept, which is to be accomplished.

Q: Why is a pipette more accurate than a burette?

A: Burette is a long glass cylinder with a stopcock at the bottom to release the liquid. Pipette has a…

Q: What is the importance of loss on drying test?

A: Concepts of loss on drying test.

Q: Directions: Enlist uses of polymers. Write your answer on a separate sheet of paper. 1. 2. 3. 34567…

A: Any substance made up of large macromolecules which are the repetitive arrangement of similar…

Q: Evaluate the graph and classify the statements as true or false. True False 9. 8- 7- Line 1 6 - 5. 4…

A: Statement 1 - Line 2 shows that flanges are inversely proportional to sprockets. This statement is…

Q: Excitation of a specimen can be accomplished when it isinserted between two ___________ electrodes.

A: Electrochemistry is the branch of chemistry that deals with the flow of electrons in the solution…

Q: 1. Select: Plant Food A NPK ratio: 11-35-15 Trial 1 Trial 2 2. Mass of sample(g): 2.0g 2.0g 3. Mass…

A: Given: molar mass of MgNH4PO4.6H2O = 245.41 g/mol molar mass of P = 30.97 g/mol molar mass of P2O5…

Q: elect all that apply. What are the requirements when chocking in Cll-Vand PSE products? Date…

A: 1,3,4,5

Q: Fixed dome reactor quantity of gas production is relatively less than for a ﬂoating gas holder type…

A: True statement.

Q: What is Desperation Force?

A: The London dispersion force is a temporary attractive force that results when the electrons in two…

Q: pls correct me if im wrong

A: For first statement : Characteristic that solvents share with one another in two-solvent extraction…

Q: Create a flowchart on how to separate the mixtures of rough sand, table salt, cornstarch.

Q: Which of the following is more accurate? measuring pipet transfer pipet

A: Pipettes are generally used to transfer out small measured quantities of liquids in laboratory.

Q: How to calculate theoretical and percent yield. My values are: .152 g magnesium turnings, 1.10 g of…

A: First we find mass of main reactant 1. Bromobenzene: 157.01g/mol (Main reactant) 2. Benzoic acid:…

Q: 1-3: Enumerate 3 diseases that may be acquired by consuming products with food preservatives and…

A: 1 . Diarrhoea 2.hyperactivity 3.Asthma

Q: QUESTION 4 Calculate the ngineering stress (MPA on a magnesium bar with intial dunensions…

Q: Why is it important to condition a pipet before use?

A: The important condition to use pipet for experiment is to rinse it thoroughly with a solution to get…

Q: Give the applications of semidry scrubbing system?

A: A dry scrubber, also called as dry scrubber system, is defined as the pollution control equipment…

Q: The glowing splint test was conducted for an unknown gas. The splint flamed on, indicating the gas…

A: This test is used to identify oxidized gas that can aid the splint to glow but not burn. When the…

Q: Flame Test Experiment

A: Flame test is a qualitative test for the identification of alkali, alkaline, and transition metals…

Q: Acrylic test stick you will need to ____ and ____ how you would hold the instrument in your dominant…

A: You must decide which hand you will hold the acrylic test stick in before using it. If you are…

Q: a) Define the following terms for an industrial process: (i) Tie component (ii) Recycle (iii) Bypass

A: Given To know about (i) Tie component(ii) Recycle(iii) Bypass

Q: 33.3 ml of a liquid is reduced to 17.4 ml after 10 minutes. Find the rate of evaporation of this…

Q: What isfactors effecting of the thermal Diffusivity?

A: In physical terms, thermal diffusivity gives a measure of how quickly the temperature will change…

Q: The microspectrophotometer employing ___________light provides a rapid and reliable method for…

A: A microspectrophotometer is a tool that analyses matter by using electromagnetic radiation in order…

Q: Problem 5. lon exchange is used to soften well water with the characteristics given in the table…

A: The main aim of this question is to calculate the total hardness of solution

Q: Decreasing the particle size fraction of a liming material increases the lime rate required to raise…

Question

Check

Example #5) 10mL of 3.0M HBr is mixed with 20mL of 2.0M KOH
HBr +KOH → H₂O + KBr
AHreaction=AHproducts-AHreactants
Substance
H₂O
HBr
KBr
KOH
Here's the first reactant: 10mL of 3.0M HBr
10
* 3
= 0.03 mol H Br
קסיטן
(-286+-392)+(-36.27 +2 480)
== -161.8 kJ
1000
Let's calculate the limiting reagent to determine how many mols of water will be formed:
*
-
Let's do this for the second reactant, 20mL of 2.0M KOH
20
2 = 0.04 molk@H
Calculate the amount of energy released:
286
36.2
0·03 * - 161.8=-4-854 k
AHf in kJ/mol
-392
480

Example #6) 250mL of 2.0M HBr is mixed with 300mL of 1.5M KOH
HBr + NaOH > H2O + NaBr
Substance
H₂O
HBr
NaBr
NaOH
AHreaction=AHproducts-AHreactants
(-286 +-362)-(-36.2 +-42607)
= -18531 kJ
Here's the first reactant: 250mL of 2.0M HBr
250 * 2
1000
* 2 = 0.5 mol H Br
Let's calculate the limiting reagent to determine how many mols of water will be formed:
1000
Let's do this for the second reactant, 300mL of 1.5M KOH
300
2 = 0.6 mol koff
*
Calculate the amount of energy released:
AHf in kJ/mol
-286
36.2
-362-8
-426.7
0.5 * - 1851 = -192.55k

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Trending now

This is a popular solution!

Step by step

Solved in 5 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

a. Procedure Obtain a petri dish filled with agar. Measure the initial width of each hole in the agar and record below. Place 1 drop of potassium permanganate in one hole of the agar. Now place 1 drop of methylene blue solution in the second hole. Then, at 15-minute intervals (for a total of 45 minutes), measure the diameter of the colored circles that form around the holes. (Scrape the contents of the used plates into the hazardous waste container provided. Discard Plastic Plates.) b. Results Time (min) 1.5 30 45 methylene blue Diameter (mm) -2MM. 3mm •4mm •5mm - 73 potassium permanganate Diameter (mm) 3 mm -4mm •6mm • Emms
Compare anticipatory and reactive standards.
Explain please
Sc Replace Create an T Normal T No Spa... Heading 1 Select - Adobe Paragraph Styles Editing Ad Q. 3. What would happen with your reflux ifyou turn off water in your condenser during the experiment?
Question 10 The TD marking on a volumetric pipet stands for O temperature dependent O t ime distinct to deliver touch down top drilled Question 11
Crossword Puzzle 6 10 4 13 15 5 11 12 3 7 14 2 Name: 1 Across 1. Glassware. Erlenmeyer base, narrow opening. 3. Measure mass on a walks on a 4. If there's a outside in designated area. 10. You may not 11. Never beam. stock bottle. 7. Heating test tube over flame? Point opening from your face and others. 13. Always wear lab. 15. Dispose of 8. Spilled an irritant on skin or in eye? Flush for minutes. or drink in the lab. unused chemicals to a Down 1. The 2. 3. 5. 6. wide Gymnast exit quickly, and meet -toe shoes in the in the proper container. Before leaving the lab, area. hoods pull in noxious vapors. your work Glassware with a wide mouth, used to transport materials. Also a Muppet. Someone hurt? Notify your immediately. Pull back long. when working with flames. 9. Measure volumes with a cylinder. Also, what the class of 2023 did. 12. Always wear safety glasses or when anyone is working in the lab. 14. Be covered from shoulders to Also, "head, shoulders, and toes." 15. Trying to smell a…
PROCEDURE 1. On a clean, dry, and flat surface, place a parchment paper, or any non-porous flat sheet. 2. Obtain your medicine tablet. Take note of its mass. [Note: Since this is home experiment and that you might not have a weighing scale at home, assume that given mass of the tablet is pure, with any excipient/(s). For example, a 500 mg ascorbic acid will have a mass of 500 mg as indicated.] 3. Pulverize the tablet into fine powder and trransfer it in a clean and dry vessel or bottle. 5. Add the necessary amount of distilled water to make the desired concentration of stock solution assigned to your group. [Note: Assume that the volume of the solute is negligible compared to the volume of the solution.] Concentration of STOCK SOLUTION, M Concentration of DILUTED SOLUTION, M 0.8 M 0.16 M 6. Make sure to place the computations used in the data sheet. PLEASE FILL IN THE MISSING TABLES IN THE DATA SHEET. THANK YOU!
In Which technique heated tube used for ionization if sample
4
Test Data: Filter Paper Number Metal Strip Mass of Filter Paper Mass of Filter Paper with Copper (after drying) 1 Zinc 1.3g 1.9g 2 Tin 1.2g 1.5g 3 Aluminum 1.3g 1.8 4 Iron 1.2g 1.5 question Suppose that instead of plating copper on a strip of aluminum you used a strip of silver. Explain what would happen.