Homework Answers
Add Answer to:
dents will turn in only the Data, Post Lab Questions, and Conclusions for this experiment 3....
urn in only the Data, Post Lab Questions, and Conclusions for this experiment POST-LAB QUESTIONS: t....
urn in only the Data, Post Lab Questions, and Conclusions for this experiment POST-LAB QUESTIONS: t. Why is it necessary to use a pencil instead of a pen when drawing the origin line and labeling the pltan ml nhe used Calculate the Rf (Retention factor) value for the spot on this chromatograph. Write formula and show set-up. 2. Solvent Compound Baseline Origin) ph below shows the sample separated into two spots (2.5 cm and 7.5 cm). The distance alues for...
If you did not collect any data or are missing some data to complete this post-lab,...
If you did not collect any data or are missing some data to complete this post-lab, then give your source of data here and give a brief explanation why you have missing data. If you use your own data you can go straight to question 1, no need to add anything here. Calcium chloride was added to the water in the "testing" experiments to simulate hard water. What was the effect of adding the calcium ions to the ability of...
Experiment Properties of Solutions 112/ Roll No. Name: Section:__ Date: Post-lab Questions 1. Did you observe...
Experiment Properties of Solutions 112/ Roll No. Name: Section:__ Date: Post-lab Questions 1. Did you observe a difference in conductivity of deionized water and tap water. If yes, explain why there is a difference 2. What was the conductivity of solid sodium chloride? What was the conductivity of the mixture when water was added to the salt? Explain your observations 3. Indicate whether solutions of each of the following contain (a) only ions, (b) only molecules, or (c) mostly molecules...
Experiment Properties of Solutions 112/ Roll No. Name: Section:__ Date: Post-lab Questions 1. Did you observe a dif...
Experiment Properties of Solutions 112/ Roll No. Name: Section:__ Date: Post-lab Questions 1. Did you observe a difference in conductivity of deionized water and tap water. If yes, explain why there is a difference 2. What was the conductivity of solid sodium chloride? What was the conductivity of the mixture when water was added to the salt? Explain your observations 3. Indicate whether solutions of each of the following contain (a) only ions, (b) only molecules, or (c) mostly molecules...
Post-Lab Questions For each of the tubing pieces, identify whether the solution inside was hypotonic, hypertonic,...
Post-Lab Questions For each of the tubing pieces, identify whether the solution inside was hypotonic, hypertonic, or isotonic in comparison to the beaker solution in which it was placed. Which tubing increased the most in volume? Explain why this happened. What do the results of this experiment this tell you about the relative tonicity between the contents of the tubing and the solution in the beaker? What would happen if the tubing with the yellow band was placed in a...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one you did, using a different combination of substances. Determine his/her results and explain them by answering the questions in the table by filling in the blank boxes. Assume that the dialysis bag is impermeable to sucrose. Set-up 1 Set-up 2 Set-up 3 Set-up 4 Set-up 5 Bags 15 mL in each Tap water Tap water 55% sucrose 21% sucrose solution solution Tap water Beakers...
Post Lab Questions: To receive full credit, you must SHOW ALL YOUR WORKI 1. What is...
Post Lab Questions: To receive full credit, you must SHOW ALL YOUR WORKI 1. What is meant when one says that a buffer has a high buffer capacity? 2. What differences did you notice when you added acid or base to distilled water as compared to the buffer solutions? 3. The blood buffer system is made up of H2CO3 and HCO3-. Describe with the use of equations how this system responds to added H3O* and to added OH-. POST LAB...
50 Experiment 7 Types of Chemical Reactions QUESTIONS POST LAB I. In experiment #3, the manganese...
50 Experiment 7 Types of Chemical Reactions QUESTIONS POST LAB I. In experiment #3, the manganese dioxide (MnO,) was added to the test tube containing hydrogen peroxide (H,O2) in order to speed up the reaction. What is the name given to a chemical that is added to a reaction in order to increase its rate? 2. Did you expect tap water to be acidic, basic or neither? Explain your answer. Neutralization reactions involve the hydrogen ions (H+) from an acid,...
50 Experiment 7 Types of Chemical Reactions QUESTIONS POST LAB 1. In experiment #3, the manganese...
50 Experiment 7 Types of Chemical Reactions QUESTIONS POST LAB 1. In experiment #3, the manganese dioxide (Mno,) was added to the test tube containing hydrogen peroxide (H,02) in order to speed up the reaction. What is the name given to a chemical that is added to a reaction in order to increase its rate? 2. Did you expect tap water to be acidic, basic or neither? Explain your answer. 3. Neutralization reactions involve the hydrogen ions (H+) from an...
urn in only the Data, Post Lab Questions, and Conclusions for this experiment POST-LAB QUESTIONS: t. Why is it necessary to use a pencil instead of a pen when drawing the origin line and labeling the pltan ml nhe used Calculate the Rf (Retention factor) value for the spot on this chromatograph. Write formula and show set-up. 2. Solvent Compound Baseline Origin) ph below shows the sample separated into two spots (2.5 cm and 7.5 cm). The distance alues for...
If you did not collect any data or are missing some data to complete this post-lab, then give your source of data here and give a brief explanation why you have missing data. If you use your own data you can go straight to question 1, no need to add anything here. Calcium chloride was added to the water in the "testing" experiments to simulate hard water. What was the effect of adding the calcium ions to the ability of...
Experiment Properties of Solutions 112/ Roll No. Name: Section:__ Date: Post-lab Questions 1. Did you observe a difference in conductivity of deionized water and tap water. If yes, explain why there is a difference 2. What was the conductivity of solid sodium chloride? What was the conductivity of the mixture when water was added to the salt? Explain your observations 3. Indicate whether solutions of each of the following contain (a) only ions, (b) only molecules, or (c) mostly molecules...
Experiment Properties of Solutions 112/ Roll No. Name: Section:__ Date: Post-lab Questions 1. Did you observe a difference in conductivity of deionized water and tap water. If yes, explain why there is a difference 2. What was the conductivity of solid sodium chloride? What was the conductivity of the mixture when water was added to the salt? Explain your observations 3. Indicate whether solutions of each of the following contain (a) only ions, (b) only molecules, or (c) mostly molecules...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one you did, using a different combination of substances. Determine his/her results and explain them by answering the questions in the table by filling in the blank boxes. Assume that the dialysis bag is impermeable to sucrose. Set-up 1 Set-up 2 Set-up 3 Set-up 4 Set-up 5 Bags 15 mL in each Tap water Tap water 55% sucrose 21% sucrose solution solution Tap water Beakers...
Post Lab Questions: To receive full credit, you must SHOW ALL YOUR WORKI 1. What is meant when one says that a buffer has a high buffer capacity? 2. What differences did you notice when you added acid or base to distilled water as compared to the buffer solutions? 3. The blood buffer system is made up of H2CO3 and HCO3-. Describe with the use of equations how this system responds to added H3O* and to added OH-. POST LAB...
50 Experiment 7 Types of Chemical Reactions QUESTIONS POST LAB I. In experiment #3, the manganese dioxide (MnO,) was added to the test tube containing hydrogen peroxide (H,O2) in order to speed up the reaction. What is the name given to a chemical that is added to a reaction in order to increase its rate? 2. Did you expect tap water to be acidic, basic or neither? Explain your answer. Neutralization reactions involve the hydrogen ions (H+) from an acid,...
50 Experiment 7 Types of Chemical Reactions QUESTIONS POST LAB 1. In experiment #3, the manganese dioxide (Mno,) was added to the test tube containing hydrogen peroxide (H,02) in order to speed up the reaction. What is the name given to a chemical that is added to a reaction in order to increase its rate? 2. Did you expect tap water to be acidic, basic or neither? Explain your answer. 3. Neutralization reactions involve the hydrogen ions (H+) from an...
Most questions answered within 3 hours.
-
1-Write an algorithm to get two numbers from the user (as
inputs) and calculate the sum...
asked 48 minutes ago -
Define white-collar crime. What is the difference between
offender and offense-based definitions of white-collar crime? What...
asked 1 hour ago -
Consider a reaction which is 1st order with respect to A and 1st
order with respect...
asked 1 hour ago -
c++
The length of the hypotenuse of a right-angled triangle is the
square root of the...
asked 1 hour ago -
When a metal rod is heated, not only its resistance but also its
length and cross‐sectional...
asked 1 hour ago -
write a c++ program that computes the L^1 - Norm of a given
vector (L^1 norm...
asked 1 hour ago -
A manufacturer of banana chips would like to know whether its
bag filling machine works correctly...
asked 2 hours ago -
Complete the chapter case, "Turnover Analysis".
Chapter Case
Turnover Analysis
You recently completed your company’s new...
asked 2 hours ago -
What is the pH of solutions having the following H3O+
concentrations? Identify each as acidic, basic,...
asked 2 hours ago -
How does over-voltage of the diode usually occur?
asked 2 hours ago -
If you step on a dirty nail, your doctor will recommend you
update your Tetanus vaccination....
asked 2 hours ago -
Suppose that decreases in the price of milk lead to decrease s
in the retail prices...
asked 2 hours ago