Chemistry Up In The Smoke Antacid Density Pre-lab Assignments Finish those 6 pre-lab assignments.For most of them, I’m sending the answers, please paraphra

Chemistry Up In The Smoke Antacid Density Pre-lab Assignments Finish those 6 pre-lab assignments.For most of them, I’m sending the answers, please paraphrase it. Qualitative Analysis Pre-Lab
1) What is the difference between qualitative analysis and quantitative analysis?
2) What evidence would you look for to see if a chemical reaction has occurred?
3) How do you differentiate between a color change and the formation of a precipitate?
4) What is the role of the centrifuge in this experiment?
5) What are the important things to keep in mind while using a centrifuge?
6) What do you do if you are using an odd number of test tubes?
7) Can you stop the centrifuge abruptly? What happens if you do?
8) Identify the following elements from their symbol.
Ba
Ni
Fe
Ag
Pb
9) How do you handle the glassware (tubes and eyedroppers) during the experiment?
10) What precautions do you need to take during the experiment?
Up In Smoke Pre-Lab 2
1. Why is cigarette smoking bad for health?
2. Why is there a ban on smoking in public places?
3. How does nicotine affect your body?
(1 pt)
(1 pt)
(1 pt)
4. What is second hand smoke? Why is second hand smoke dangerous? Is secondhand smoke is more/ less dangerous than first-hand smoke. Explain.
(1 pt)
5. Who is affected by second hand smoke?
(1 pt)
6. Read a recent newspaper article that has to do with the topic of the experiment.
Write a brief summary of the article and bring a copy of it. Remember to reference
the source: newspaper, date, page, etc in your article. Please also attach the article to
your summary
((5 pts)
Up in Smoke Lab Pre-lab 1
1. What is the purpose of this experiment? (1 pt)
2. What technique will be used in his experiment to achieve the purpose? (1 pt)
3. What are the three different types of cigarettes being used in this experiment? (1 pt)
4. What is the appropriate time to let the cigarette burn? (1 pt)
5. What is the purpose of adjusting the vacuum? (1 pt)
6. Where are we collecting the solids coming from the cigarettes? ( 1 pt)
7. What are the precautions one must take while doing this experiment? (2 pts)
8. What are the common mistakes a person might make while doing this experiment?
(2 pts)
Antacid Pre-lab
1. How many different brands of antacids we are using in this experiment? (1 pt)
2. What is the acid that is present in the stomach and causes acidity in excess? (1
pt)
3. How do antacids work? (1 pt)
4. What is the purpose of using the bromocresol solution? (1 pt)
5. How do you know that the end-point of the titration has been reached?
(1 pt)
6. What do we mean when we say the end point of a titration has been reached?
(1 pt)
7. How do we determine how much acid was added to the antacid solution? (1 pt)
8.
What is the purpose of having two trials for each antacid? ( 1pt)
9. What is an important safety precaution taken in this particular lab experiment?
(1 pt)
10. Which one of the antacids was recalled a few years ago? Why was it recalled?
Cite your sources for this information. ( 1pt)
DENSITY AND MEASUREMENT PRE-LAB
The pre-lab will not be accepted unless it is typed.
1. Match the property to the correct Basic Unit.
Property
Length
Mass
Volume
Temperature
Basic Unit
Meters (m)
Kilograms (kg)
Liters (L)
Celsius (C)
2. Measurements without _______________ have no meaning.
3. _____________________ must be used when using the top loaded balance to weight
solid chemicals.
4. How do you record the volume of liquid in a glass container
5. What are the different ways to measure pH? What do we use to measure pH in this
experiment?
6. What are some of the possible sources of error in this experiment?
7. What is the difference between weight and mass? Can you use the terms
interchangeably?
8. A sample has a mass of 52 grams and a volume of 42 mL. What is its density? ( show
your work)
9. What are the four kinds of balances? What are the precautions that need to be
taken when using a balance?
10. How many units of temperature are there? Name them all. How are they
interrelated?
11. What things do you have to keep in mind when reading a measuring cylinder?

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