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thermochemistry
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thermochemistry
Legal highs Research Chemicals forum
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thermochemistry
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Author:
William07
- Replies:
0
- Views: 258
Am I Using the Correct Calculations? Thermochemistry Problem..
Is my thinking correct? Have I used the correct equations? Thank you
Question:
You wish to find the enthalpy of reaction per mole of nitric acid for the following reaction:
Mg (s) + 2HNO3 (aq) --> Mg(NO3)2 (aq) + H2 (g).
[size=medium]At 25 degrees C, you add 0.050 grams of magnesium flakes to a makeshift coffee-cup calorimeter (Ccal= 11 Joules/C) that contains 100.0 mL of 1.25M HNO3. You close the top a
Author:
William9
- Replies:
0
- Views: 210
Thermochemistry
Hi there! I have absolutely no idea what to do here..
1. Calculate the enthalpy of neutralization per mole of water produced. The temp change should be calculated as the temp of the final mixture minus the HCl solution temp. (the density of the resulting 0.5M NaCl solution is 1.02g/ml and its Cs is 4.00J·g-1·°C-1)
Apparently Im supposed to graph as well
Author:
Jayden
- Replies:
0
- Views: 189
Struggling with Thermochemistry problem
The problem I am having issues with is about the amount of heat given off in burning cyclohexane along with the amount of grams needed to burn. Here is the exact wording.
[size=medium]A hospital autoclave made of steel has a mass of 32 kg. It is filled with 352 grams of water. The temperature of both is 23.7 C. You want to heat them both to 100 C. To do that you will use the heat given off when you burn cyclohexane. If all the heat given off in burning the cyclohexane is
Author:
Diego7
- Replies:
0
- Views: 151
Thermochemistry question
Hello,
I have a thermochemistry question:
Write the complete thermochemical equation that corresponds to ΔHf° for glycine, C2H5O2N(s)=-126.33 kJ/mol.
[size=medium][color=#000000][font=Verdana, Helvetica, sans-serif]I've tried the pro
Author:
muans
- Replies:
0
- Views: 419
Thermochemistry-Calorimetry problem?
How much heat is required to raise the temperature of a 50.0 g block of iron by 10.0oC?
Specific heat of iron: 0.449 J/goC
Density of iron: 7.87 g/cm
I got 225J using the equation q=mct, but not sure if that's correct
Author:
Ethanad
- Replies:
0
- Views: 167
Thermochemistry signs + buffer solutions
Hi,
I just have a few questions concerning 2 homework problems I'm having trouble with, and I'd be really grateful if anyone could explain them to me or give me a nudge in the right direction.
THERMOCHEMISTRY
a system comprised of 2.578 moles of Argon (g) cools from 195°C to 50°C at a constant pressure of 2.0 atm. The molar heat capacity for Argon is 20.80 J K^-1 mol ^-1.
[size=medium]calculate w [/siz