5.6 dm^3 of gaseous HCl (as measured in normal conditions) is dissolved in 100 cm^3 of...
5.6 dm^3 of gaseous HCl (as measured in normal conditions) is dissolved in 100 cm^3 of water. What is the mass percent concentration of the obtained acid?
The answer is 8.4%, but I do not understand how.
This is taken from a practice test, and on the test, densities and formulas will not be given, so I do not know how to approach the problem.
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5.6 dm^3 of gaseous HCl (as measured in normal conditions) is
dissolved in 100 cm^3 of...
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Determine how many liters (l) of stock HCl were used in titration #1. Please fill all...
Determine how many liters (l) of stock HCl were used
in titration #1.
Please fill all questions under "Data Analysis"
Page 1 is just instruction for Page 2
EXPT 10: TITRATION OF STRONG ACID WITH STRONG BASE Note to Students: when you see the symbol (), this means there is something you must add into the mock data yourself. You may handwrite or type your answers directly on these pages for submission to a Blackboard link. Remember to show all...
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please help me with 3,4,5
Thank you!
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I know some of the measured pH values are a little off due to error in...
I
know some of the measured pH values are a little off due to error
in the lab, but I need help filling out the “Ion Hydrolyzed” table
and then the “Net Ionic Equation” part. I remember doing net ionic
equations in General Chemistry I, bit don’t see how it applies
here.
Thanks, in advance! (i will rate!)
Learning Objectives: 1. To test the acidic and basic properties of ionic compounds. 2. To create a buffer solution and calculate its...
help on number 3 here is lab we did EXPERIMENT 19 An Analysis of Commercial Antacids...
help on number 3 here is lab we did
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Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
U. Amphoteric Behavior of Aluminum Hydroxide B. Test for basic behavior. Describe what happened when HCl was added. # dissolved C. Test for acidic behavior. Describe what happened when NaOH was added. Dident dissole i continued to precipitate. 1. QUESTIONS: Which metals are more reactive - alkali metals (Group IA) or alkaline earth metals (Group ILA)? How do you know? 2. Based on your observations regarding Group IIA metals (calcium and magnesium), which Group IIA metal would you expect to...
Determine how many liters (l) of stock HCl were used
in titration #1.
Please fill all questions under "Data Analysis"
Page 1 is just instruction for Page 2
EXPT 10: TITRATION OF STRONG ACID WITH STRONG BASE Note to Students: when you see the symbol (), this means there is something you must add into the mock data yourself. You may handwrite or type your answers directly on these pages for submission to a Blackboard link. Remember to show all...
I MUCEDURES SHOP log indoor Your team will examine the impact of changing concentration and temperature on the position of equilibrium (Part I). Compare your observations with different teams and look for patterns in results to identify factors that shift the position of equilibrium toward reactants or products. In Part II, test your understanding as you make predictions and explain any shift in the equilibrium position of a new equilibrium system. Part Observations of Equilibria You and your teammate(s) will...
BOX 11-9 Self-Assessment: Developing Sound Clinical Judgment Answer the following questions honestly. When finished, make a list of the items you need to work on in your quest to develop sound clinical judgment. Keep the list with you and review it frequently. Seek opportunities to practice needed activities. 1. Use high-quality references and resources. Do I look up new terms when I encounter them to make them part of my vocabulary? Do I familiarize myself with normal findings so that...
please help me with 3,4,5
Thank you!
3. Which sample had more moles of HA in it initially? Give reas on ! 4. Do the prelab calculation found in part IIIA below 5. Calculate the (expected) initial concentration of your acid solution (see Part IIIB below to get the initial volume of your acid solution) Acid 2 0 50 40 30 0 10 20 Volume of titrant (base) added (mL) III. Experimental Information and Procedures A.Background and preliminary calculation. You...
I
know some of the measured pH values are a little off due to error
in the lab, but I need help filling out the “Ion Hydrolyzed” table
and then the “Net Ionic Equation” part. I remember doing net ionic
equations in General Chemistry I, bit don’t see how it applies
here.
Thanks, in advance! (i will rate!)
Learning Objectives: 1. To test the acidic and basic properties of ionic compounds. 2. To create a buffer solution and calculate its...
help on number 3 here is lab we did
EXPERIMENT 19 An Analysis of Commercial Antacids Rolaids Alka Seltzer OBJECTIVES: Determine the per gram neutralizing ability of a commercial antacio Determine the per gram neutralizing ability of sodium bicarbonate Compare the effectiveness of several antacids. INTRODUCTION: "How do you spell relief two hecimie The parietal cells in the stomach secrete sufficient hydrochloric aci 0.10 M The flow of HCl increases when food enters the stomach and so acid secrete sufficient...
Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
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