Reference no: EM131207138
EXPERIMENT #1: QUALITATIVE ANALYSIS OF UNKNOWN IONS IN A SOLTUION
Analysis of an Unknown
Individual Pre-lab
1. The main goal/purpose of the experiment is (what are you trying to discover in this lab):
a. What are the questions we need to answer with the results obtained from this experiment?
b. The hypothesis(es) we seek to test in this experiment is(are) (what is the basis of your experiment, see Ch.1 in your text):
2. What tests will be used to test for the presence of unknowns cations?
a. What tests will be used to test for the presence of unknown anions?
b. The key question the experiment seeks to answer is (what problem are you addressing?)
(see 1 a):
c. The controls involved in this experiment are (a control is used to minimize the unintended influence of other variables on the same system)
3. What is the best way to insure that there are no false positives or that there is not contamination or interference.?
4. The key concept(s) or theory(ies) behind the experiment is(are) (define terms like pure substance, mixture, sublimation, etc. can you explain the relevant theory):
a. How can selective precipitation be used to identify unknown ions?
b. The important technique(s) used in this experiment is(are) (sublimation, etc.) Please describe:
c. What technique is used to separate precipitate from ions that remain dissolved in the solution?
d. What technique is used to treat precipitate or solution for presence of an unknown ion?
e. The experiment is based on the following assumptions (identify your assumptions and determine if they are justifiable):
5. Discuss the importance of selective participation.
6. The data that will be collected in the experiment are (what do you plan to record in your notebook)
a. What results will be collected and recorded in your lab notebook?
b. The potential consequences of the experiment are:
c. What can be expected if positive results are obtained?
d. What might prevent positive results from being obtained?
7. The point of view behind the experiment is (make sure it's scientific).
8. What is this experiment designed to measure?
9. What can the results NOT tell us about the experiment?
10. What special safety precautions do you need to be aware of for this experiment?
Attachment:- Experiment.rar
|
Find the average power loss and power factor
: Find the average power loss and power factor for each of the circuits whose input current and voltage are as follows:
|
|
Evaluate the implications of the legal pressure
: HC2121 COMPARATIVE BUSINESS ETHICS - AND SOCIAL RESPONSIBILITY - Compare and contrast diverse approaches to ethical decision making and Evaluate the implications of the legal pressure for ethical behaviour in organisations
|
|
Problem regarding the hierarchy of service styles
: Common variables and characteristics of food and beverage service systems are explained in relation to the hierarchy of service styles?
|
|
What are the hindrances to a strong relationship
: How can IT leaders establish an effective relationship with Business Managers? What are the necessary conditions in a business environment for a strong relationship between IT and business?
|
|
What is the experiment designed to measure
: What is this experiment designed to measure? What can the results NOT tell us about the experiment? What special safety precautions do you need to be aware of for this experiment?
|
|
Which radio stations are most popular with students
: What graph would you use? What type of graph or graphs would you plan to make in a study of each of the following issues?
|
|
What is a value chain and why is it important
: The question: What are Porter's three generic strategies and explain? Under what circumstances would the application of each of his strategies be the most appropriate? As a manager, what are the conditions you are looking for that would make each..
|
|
Compute the power
: If the current through and voltage across an element are I = 8 sin(ωt + 40°) and v = 48 sin(ωt + 40°), respectively, compute the power by I2R, (VmIm/2) cos θ, and VI cos θ, and compare answers.
|
|
Remarkably good or bad experiences
: What tools/methods do you anticipate using in your job search following your graduation? Have you run into remarkably good or bad experiences you'd like to share? (If so, keep thing anonymous!) How prepared would you feel in pursuing a job oppo..
|