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| Before and After |
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| CuSO4 |
(At the end of the post there are two links that lead to to websites/videos that can help you understand the lab or how to calculate "n" in a formula)
The first thing we had to do today in order to do the lab was answer the pre-lab questions correctly. We picked one partner to be A and the other to be B. We then were told the questions. I was lucky and got to answer the quick question about the general procedure, while my partner had to complete the math portion. I ended up doing the math part anyway just for more practice.
WE BOTH PASSED! INTO LAB WE GO!
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| Heating test tube |
Today our general procedure (pictures included at the end) was to:
1. Find the mass of the dry test tube
2. Fill it with 2 cm of CuSO4
3. Find the mass of test tube and CuSO4
4. Put test tube on a ring stand
5. Heat substance for 1-2 minutes on low heat with a bunson burner.
6. Heat substance for 5-10 minutes (or until it turns white) on high
7. Remove and cool
8. Find Mass of test tube and substance
9. Reheat 3-5 minutes
10. Re-cool
11. Re-weigh
12. Repeat until water driven off
13. Clean test tube
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| While Heating, Condensation can form on the top of the test tube |
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| Overhead view of the Test tube and its contents |
Things with our experiment specifically:
After we had gotten the mass of the test tube with the CuSO4 in it, we wet back to our station. While preparing to put it on the ring stand, I unfortunately, wasn't thinking, and turned a page in my packet with the test tube in hand. What did this mean? I dumped the CuSO4 all over the floor. Yikes! I called Mrs. Frankenberg over and she told us to just go refill our test tube. I felt so bad! At least I learned from my mistakes.
Secondly, when we were heating the CuSO4 we began to smell the gas coming from the test tube so we had to stop heating and let it cool even though there were blue crystals left. By the end, we had gotten rid of any blue crystals but we had a few that looked green and others purple. Hopefully we did this right. Our teacher said it looked good to her, so I hope that means we did good!
Our Data and What is Means
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| The Data Collected |
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| My math to Find "n" |
For those that were unable to complete the lab here is a link to a video of what we did:Formula of a Hydrate Lab
If you are having trouble calculating "n", here is a link to a video to help you understand the steps and to take a quiz to test your knowledge: Study.com
If you are having trouble calculating "n", here is a link to a video to help you understand the steps and to take a quiz to test your knowledge: Study.com
All of your posts are very factual and in depth which is nice especially for you to study in tests and quizzes. The websites are very interesting helpful. The only thing I would say is that there is so much information on your blog that it is quite overwhelming to take it all in. Food for thought
ReplyDeleteHoly information. This is so in depth and informational which will really help when trying to remember these concepts for the final. Thanks for taking your time to write all of this, It's very helpful!
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