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I have completed the egg float experiment. I don't understand how to calculate the absolute salt content. The amswers I read were very complicated. I have not taken Chemistry yet. Please help.
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Absolute salt content
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JoshuaG
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- Joined: Sat Oct 26, 2013 12:13 pm
- Occupation: Student
- Project Question: How do I determine the absolute salt concentration for my egg floating expirament? I have not taken chemistry.
- Project Due Date: 11-1-13
- Project Status: I am finished with my experiment and analyzing the data
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deleted-71536
- Former Expert
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Re: Absolute salt content
Hi Joshua,
In general, absolute concentration is a ratio of the amount of solute (thing dissolved - in this case, salt) to the amount of solvent (thing doing the dissolving - in this case, water). There are different ways to calculate concentration. The most common way is molarity (M), which is moles of solute / volume of solvent. To calculate moles, you use the molecular weights found in the periodic table. For sodium chloride (NaCl), or table salt, the molar mass is 58.44 g/mol. You can also calculate molality (m), which is grams of solute / volume of solvent. You should easily be able to calculate molality from the grams of salt you used and the volume of water.
Here is another explanation with examples: http://chemistry.about.com/od/lectureno ... ration.htm
I hope this helps. Please post again (in this same thread) if you are still confused or have more questions.
Heather
In general, absolute concentration is a ratio of the amount of solute (thing dissolved - in this case, salt) to the amount of solvent (thing doing the dissolving - in this case, water). There are different ways to calculate concentration. The most common way is molarity (M), which is moles of solute / volume of solvent. To calculate moles, you use the molecular weights found in the periodic table. For sodium chloride (NaCl), or table salt, the molar mass is 58.44 g/mol. You can also calculate molality (m), which is grams of solute / volume of solvent. You should easily be able to calculate molality from the grams of salt you used and the volume of water.
Here is another explanation with examples: http://chemistry.about.com/od/lectureno ... ration.htm
I hope this helps. Please post again (in this same thread) if you are still confused or have more questions.
Heather