Sodium Chloride

Sep 18, 2009 at 11:49 PM
Last class, we did our first lab.

Just a reminder of what NOT to do in the lab..


Problem: What is the maximum amount of Sodium Chloride you can dissolve in 200mL of
water?



We completed 4 trials one with 10mL, another with 20mL, one with 30mL and the last one with 40mL. After figuring out the maximum mass of salt we can dissolve in each amount of liquid, we graphed the points. From there we then tried to estimate the maximum amount of Sodium Chloride we can dissolve in 200mL of water from a line of best fit.

Our results:
Trial Volume of Water (mL) Mass of Salt (g)
1 10 0.70
2 20 1.83
3 30 2.67
4 40 3.62

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