How salty does the sea have to be to make an egg float?

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AprilBaby03
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Joined: Fri Nov 27, 2015 8:28 pm
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How salty does the sea have to be to make an egg float?

Post by AprilBaby03 »

I am confused on how to find the absolute salt concentration. I have not done chemistry yet. Can you please reply ASAP? Thank you
AprilBaby03
Posts: 3
Joined: Fri Nov 27, 2015 8:28 pm
Occupation: Student

Re: How salty does the sea have to be to make an egg float?

Post by AprilBaby03 »

I read some of the other post and figured out how to find the absolute salt concentration. Now I'm just wondering if I'm supposed to add more solution to cup 2 for the dilution and then add 25% tap water.
trystanloustau
Former Expert
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Re: How salty does the sea have to be to make an egg float?

Post by trystanloustau »

Hi. Sounds like a fun project! In step 4, add 3/4 cup of water to cup #2 and then add 3/4 cup of the sock solution. You add 3/4 cup of water to the remaining cups as well, but not straight stock solution. Instead, after you have mixed the stock solution and the water in cup 2, take 3/4 of the whole thing and mix it in the water in cup 3 to create a less concentrated solution. Then, take 3/4 of the newly made solution in cup three and mix it with the water in cup 4.

Good luck!
Trystan
AprilBaby03
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Joined: Fri Nov 27, 2015 8:28 pm
Occupation: Student

Re: How salty does the sea have to be to make an egg float?

Post by AprilBaby03 »

Thank you!!
ZacharyThomas
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Joined: Fri Dec 18, 2015 6:36 am
Occupation: Student

Re: How salty does the sea have to be to make an egg float?

Post by ZacharyThomas »

hey guys thank you for your time in advance i just want to know if this is a good idea but instead have 5 cup and put in 25 gram of salt except cup 5 which you put 50 grams.
PharmaMan
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Re: How salty does the sea have to be to make an egg float?

Post by PharmaMan »

Hi Zachary,

If you use only 25g of salt for the stock solution, it may be too low to perform the experiment. Additionally, cup 5 should still serve as the negative control (plain tap water). This is a necessary control to which you will compare the rest of your experimental conditions.

Let us know if you have further questions.

Pharma
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