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A gas is compressed and during this process the surroundings do 111 J of work on the gas. At the same time, the gas loses 246 J of energy to the surroundings as heat. What is the change in the internal energy of the gas?
Indicate the number of pi-electrons that are present in each ring and indicate whether or not a resonance form is aromatic.
a mixture of immiscible liquids both water-insoluble is subjected to steam distillation. at 90 degrees c the vapor
Problem- Draw the structural formula of the major product of the reaction of (S)-2,2,3-trimethyloxirane with MeOH, H+.
For every one of the carbonyl-containing products listed below, pick a appropriate starting material and reagent(s) for oxidative cleavage
a gas is placed in a balloon with a volume of 3.0L at 35C and 800 torr. What would be the new volume for the gas if placed under STP
Compute the equilibrium concentrations of each ion in the final solution resulting from the mixing of 40.00mL of 0.0450 M MgI2 and 60.00mL of
a 25.0 ml bubble is realeased from a divers air tank at a pressure of 4.00 atm and a temperature of 11 c. what is the
The following reaction has equilibrium constant Kc=32, calculate the equilibrium concentration of CH2O if 2.50 mol of CH2O is placed in an empty 5.0 L reaction chamber.
What mass of sucrose should be combined with 453 of water to make a solution with an osmotic pressure of 8.00 at 320 ? (Assume the density of the solution to be equal to the density of the solvent.)
What is the molar solubility of CaF2 in 0.10 M NaF solution at 25°C? The Ksp for CaF2 is 1.5 x 10^-10
Calcultate what is the value of enthalpy H reaction If the temperature increased from 35.0 degree celsius to 76 degree celsius and the heat capacity of the calorimeter = 23.3kj/c ? (the molar mass of C2H5OH = 46.07g/mol. )
A compound is 42.9% C, 2.4% H, 16.7% N, and 38.1% O, by mass. Addition of 6.00 grams of this compound to 50.0 ml benzene, C6H6 (d = 0.879 g/mL), lowers the freezing point from 5.53 to 1.37 degrees celsius. What is the molecular formula of this com..
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