Wednesday
December 11, 2013

# Posts by Chemistry

Total # Posts: 180

Lauren
-6783.72 J

Lauren
wouldnt it be 4.184J/g * degrees C so 4.184 J/ 162 g H2O * 10 degrees C = ?

Lauren
The specific heat of water is at 4.184J/g * degree C. How much heat is evolved, or absorbed, when the temperature of 9.00 mol of liquid water cools from 38 degrees C to 28 degrees C? How do I start this problem

Suzy
it is a linear regression of a graph I have that deals with the absorbance by the concentration I couldnt paste it on here for you to see....

Suzy
ALSO PART OF THE DISCUSSION In Figure B the line of y=0.0052x-6E-05, R^2 .9989 the .9989 is really close to 1, the closer to one the better, to go over one seems to make the lab a failure. Less than one must mean that the lab went well and was done correctly. COULD YOU HELP ME...

Suzy
Discussion: This experiment was conducted to identify the iron content in a breakfast cereal. The results indicate that there was iron in the chosen breakfast cereal of Kix, the spectrometer shows that the absorbance or color was around .39 so about 39% as seen in Figure A the...

Suzy
Discussion: This experiment was conducted to identify the iron content in a breakfast cereal. The results indicate that there was iron in the chosen breakfast cereal of Kix, the spectrometer shows that the absorbance or color was around .39 so about 39% as seen in Figure A the...

Suzy
Discussion: This experiment was conducted to identify the iron content in a breakfast cereal. The results indicate that there was iron in the chosen breakfast cereal of Kix, the spectrometer shows that the absorbance or color was around .39 so about 39% as seen in Figure A the...

Suzy
Results: The combination of the solutions: sodium acetate, hydroxylamine hydrochloride and phenanthroline solutions mixed together with the colorless iron solution made the iron phenanthroline solution turn into an orange tint.

Suzy
Methods and Materials: The 100 mL volumetric flask with the colorless iron solution was fitted with a rubber stopper. First, transfer the colorless iron solution into a 250 mL volumetric flask, since the substance in the 100 mL volumetric flask was too much. The 250 mL volumet...

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