How to Find Ethanol %/Volume at 24 Degrees Celsius?

AI Thread Summary
To find the ethanol percentage by volume at 24 degrees Celsius, one can use the density data available for ethanol at 20 and 25 degrees Celsius. Since specific data for 24 degrees is scarce, interpolation between the values at 20 and 25 degrees can provide an estimate. This method involves calculating a weighted average based on the densities at the two known temperatures. It is essential to cite the sources used for the density values in the final solution. Accurate interpolation will yield a reasonable approximation for the ethanol concentration at 24 degrees Celsius.
JeeebeZ
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Homework Statement



Using the density of ethanol at 24 degrees Celsius how would I find the %/volume? I can find lots of places that have 20 or 25 degrees but I don't know where to find something referring to 24 degrees?


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The Attempt at a Solution



I have to quote a source for where I found the information But I can not find anything referring to 24 degrees only 20 and 25. :(
 
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Interpolate what you have found at 20 and 25 degrees.
 
Thread 'Confusion regarding a chemical kinetics problem'

Thread 'Confusion regarding a chemical kinetics problem'

TL;DR Summary: cannot find out error in solution proposed. [![question with rate laws][1]][1] Now the rate law for the reaction (i.e reaction rate) can be written as: $$ R= k[N_2O_5] $$ my main question is, WHAT is this reaction equal to? what I mean here is, whether $$k[N_2O_5]= -d[N_2O_5]/dt$$ or is it $$k[N_2O_5]= -1/2 \frac{d}{dt} [N_2O_5] $$ ? The latter seems to be more apt, as the reaction rate must be -1/2 (disappearance rate of N2O5), which adheres to the stoichiometry of the...
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