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The vapor pressure of pure methyl alcohol at 19?C is 90.0 torr and that of pure ethyl alcohol is 40.0 torr. Assume a mixture of methyl alcohol and ethyl alcohol is ideal. what is the vapor pressure at 19?C of ethyl alcohol in equilibrium with a solution prepared by mixing 1.9 moles of methyl alcohol (CH3OH) with 1.1 moles of ethyl alcohol (C2H5OH)?
Calculate the heat given off by the burning Mg in kJ/g. b)Calculate the heat given off by burning Mg in kJ/mol
If a cow passes 975g of methane per day how many moles of methane are being produced per day and how many g of carbon per day
The hydration of norbornene and the bromination of trans-cinnamic acid are both examples of additions across a double bond. How many new stereocenters were generated in the hydration
A first order reaction has an Arrhenius constant for the reaction is 9.4 x 10^10 sec ^-1, and an activation energy of 64.4 kJ. At what temperature (in Celsius) is the rate constant equal to 0.472 sec^-1
why is it not necessary to precisely measure the amount of water added to the sodium chloride in the procedure
ephedrine is used as a bronchodilator and decongestant. phenobarbital is used as an anticonvulsant and sedative. what simple chemical test distinguishes these 2 medicines?
CO(g) + NO2(g) ------> CO2(g) + NO(g) rate= k(NO2)^2 Suggest a plausible mechanism for the reaction, given that the unstable species NO3 is an intermediate.
Write and balance the equation for the complete combustion of heptane, C7H16. You do not need to include any phase symbols or energy
Determine the specific heat of a metal object of 19 grams that is heated to 96 degrees Celsius and added to a calorimeter containing 75 grams of H 2 O at 18 degrees Celsius.
The filter cake consists of K2CrO4 crystals and a solution that contains 36.36wt% K2CrO4. The crystals formed account for 95% of the mass of the total filter cake. The solution that passes through the filter, also 36.36wt% K2CrO4, is the recycle s..
Find the theoretical yield for the following synthesis of ferrocene. 2KOH + 2C5H6 + FeCl2(H2O)4 --> Fe(C5H5)2 + 2KCl + 6H2O 25gKOH are in the reaction 5.5 mL C5H6 are used in the reaction
identify a chemical reagent used in this experiment that can be used to distinguish cacl2 (soluble) from CaCo3 (insoluble)
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