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The thermometer you use to measure the freezing temperature of the solvent actually records a temperature that is 0.12ºC too high. Unfortunately you break this thermometer and borrow a fellow student's thermometer, which reads 0.11ºC too low. If the molality of your solution is 0.30, calculate the contribution to the percentage error in your results due to not correct for the errors in the thermometer readings.
Assume the proton-proton coupling constants for diethyl ether is 10 Hz. Draw the splitting trees for each of the multiplets in the spectrum(there are two, one triplet and one quartet).
If 3.25ml of vinegar needs 40.0 of 0.130M NaOh to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.30qt sample of this vinegar.
Calculate the predicted change in boiling point, in °C for your solution. What is the calculated boiling point of the solution? Compare this with the actual boiling point.
If 45.8 grams of aluminum metal are reacted with excess HCl, what volume of H2 gas would be generated at 23.0 ºC and 1.00 atm pressure?
What effect would the incomplete drying of a sample (for example, the incomplete removal of a recrystallization solvent) have on the melting point
A student weighed out 0.1225 g of the unknown copper bromide salt and carried out a titration like the one you performed in week 4. If the sample required 17.00 mL of 0.03525 M thiosulfate solution to reach the endpoint, what is the percent by ma..
use maxwell distribution of speeds to estimate the fraction of CO2 molecules at 300K that have speeds in the range 200 to 250 m/s.
Calculate the number of grams of sulfuric acid in 0.520 of battery acid if the solution has a density of 1.35 and is 37.4 sulfuric acid by mass.
Assuming the heat absorbed by the styrofoam is negligible, calculate the expected final temperature. The specific heat of water is 4.184 J g-1 K-1.
How would the ground-state energy levels of X and H compare (where X is an atom with one electron like Hbut different energy levels)? For X: E = - (RH / n3) and RH is the same as H (2.179 ×10?18J).
The ionization energy of tin is 708.0 kJ/mol. Calculate the maximum wavelength of light that will ionize tin.
2H2S (g) + 3O2 (g) → 2H2O (g) + 2SO2 (g) If 3.50 G Of H2S Are Used In The Above Reaction, What Will Be The Theoretical Yield Of Water In Grams?
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