HELP HELP!! ITS URGENTT!! Enthalpy change
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HELP HELP!! ITS URGENTT!!
How do you find out enthalpy change for for the displacement reaction (iron 3 sulphate +zinc= zinc sulpahte +iron) if i have different concentrations of iron 3 sulphate ?
HELP HELP!! ITS URGENTT!! Enthalpy change
hello , I'm an IB senior student . I was how can find the enthalpy change of this displacemnt reaction (iron 3 sulphate +zinc) when i have different concentrations of iron 3 sulphate (0.25 ,0.5,075,1.00 molar) ?
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MadelineB
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Re: HELP HELP!! ITS URGENTT!!
Hello Shebnam and welcome to Science Buddies.
This post seems very similar to your second post which you posted in the Physical Sciences forum.
Please keep all your posts together!
I will merge this post with your post in the Physical Sciences forum. That will help to keep the responses together.
Thank you!
This post seems very similar to your second post which you posted in the Physical Sciences forum.
Please keep all your posts together!
I will merge this post with your post in the Physical Sciences forum. That will help to keep the responses together.
Thank you!
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norman40
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Re: HELP HELP!! ITS URGENTT!! Enthalpy change
Hello Shebnam,
I’m assuming that you want to measure the enthalpy change for the reaction you mentioned. A calorimeter experiment is used to measure reaction enthalpy. The following links describe the procedure for this kind of experiment:
http://www.uccs.edu/Documents/chemistry ... imetry.pdf
https://www.sciencebuddies.org/science- ... p092.shtml
Reaction enthalpies depend on the amounts of reactants that are converted to reaction products. For example, formation of 2 moles of zinc sulphate will yield an enthalpy change that is twice as large as that from formation of one mole. So the different iron sulphate concentrations you mentioned will give different enthalpies (assuming constant solution volume).
You could measure the enthalpy change for a constant volume each iron sulphate concentration, making sure that you always add an excess of zinc to the solution. A graph of the molar amounts of iron sulphate (x-axis) versus measured enthalpy change should show a straight line. The slope of this line is the enthalpy change per mole of iron replaced by the zinc.
I hope this helps. Please post again if you have more questions.
A. Norman
I’m assuming that you want to measure the enthalpy change for the reaction you mentioned. A calorimeter experiment is used to measure reaction enthalpy. The following links describe the procedure for this kind of experiment:
http://www.uccs.edu/Documents/chemistry ... imetry.pdf
https://www.sciencebuddies.org/science- ... p092.shtml
Reaction enthalpies depend on the amounts of reactants that are converted to reaction products. For example, formation of 2 moles of zinc sulphate will yield an enthalpy change that is twice as large as that from formation of one mole. So the different iron sulphate concentrations you mentioned will give different enthalpies (assuming constant solution volume).
You could measure the enthalpy change for a constant volume each iron sulphate concentration, making sure that you always add an excess of zinc to the solution. A graph of the molar amounts of iron sulphate (x-axis) versus measured enthalpy change should show a straight line. The slope of this line is the enthalpy change per mole of iron replaced by the zinc.
I hope this helps. Please post again if you have more questions.
A. Norman