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What will be the amount of energy in Joules and kilo calories in a marshmallow that was burned to increase the temperature of 50.00 g of water from 23 C t 25 C.
Consider the reaction 2ZnS + 3O2 → 2ZnO + 2SO2. Suppose that you wanted enough O2 to completely react with 500. g of ZnS.
A solution is 0.10M Pb(NO3)2 and 0.10M AgNO3. If solid NaCl is added to the solution what is [Ag+] when PbCl2 begins to precipitate? (Ksp PbCl2 = 1.7 x 10^-5; AgCl = 1.8 x 10^-10)
A system is expanded against an external pressure of 2 atm, changing its volume from 10 to 35 L and absorbing 765 J as heat from the surroundings.
The heat of vaporization of water is 9.72 Kcal/mol. How much heat (in kilocalories) is required to vaporize 2.70 mol of H2O and how much heat (in kilocalories) is released when 440 grams of steam condenses
A gas is flowing through a certain system. At the inlet, the pressure is 0.3 MPa and the density is 1.2kg/m^3. At the outlet, the pressure is 0.4MPa and the density is 0.2kg/m^3. Determine the flow work the system does to the outside.
Look up the chemical structure of ibuprofen. Do you think it inhibits the inflammation cascade in the same way as aspirin? Why or why not?
Problem- The vapor pressure of benzene is 750. Torr and the vapor pressure of toluene is 300 torr at a certain temperature. You make a solution of benzene and toluene. You place this solution is a closed container and wait for the vapor to come in..
Draw the structures for each of the following fatty acids: a.) trans-5-Decenoic acid b.)cis-5-Decenoic acid
The reactivity ratios for free radical copolymerization of Styrene
along with chemical shift arguments and resonance theory, assign all of the peaks in the 1H and 13C NMR spectra of 4-propoxybenzaldehyde. Briefly explain you reasoning.
If 24.92mL of 0.01232 M NaOH solution are required to titrate 0.1932 g of an unknown diprotic (n=2) acid, explain what is the molar mass of the acid
Automobile batteries are filled with an aqueous solution of sulfuric acid. What is the mass of the acid (in grams) in 500. mL of the battery acid solution if the density of the solution is 1.285 g/cm3 and the solution is 38.08% sulfuric acid by ma..
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