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What is the vapor pressure at 75 degrees celcius of an aqueous solution prepared by the addition of 52.9 g of urea CO(NH2)2 to 178 g of water? The vapor pressure of pure water at 75 degrees celcius is 290 mmHg.
how many grams of iron will react with water to form iron (III)oxide and 85 liters of hydrogen gas at 19 degrees celsius & 525 torr?
A rectangular beam made using concrete with f'c = 6000 psi and steel with fy=60000 psi has a width b= 20 in. The concrete modulus of rupture fr=530 psi. The elastic moduli of the concrete and steel are, respectively,
How many grams of hydrogen chloride can be produced from 350 grams of sodium chloride and 290 grams of hyroden sulfate if the reaction has a yield of 88%?
What is the value of q when 0.0209 g of water vaporizes at 373 K? The enthalpy of condensation of water at 373 K is -40.7 kJ/mol.
Measuring concentration of acetic acid and other organic acids in an aqueous solution, What analytical method would be employed to measure and determine the concentration of each acid in solution. Would this be a GC/MS analysis
N2 + 3H2 -> 2NH3 . 28.0 grams of N2 and 5.04 grams of H2 are reacted, producing 17.8 grams of NH3. What is the percent yield?
If a chemistry student collected 834 mL of gas at 25 degrees C and 8.00 x 10^2 torr, how many moles did she collect?
write equations for the chemical reactions that occurred between the aqueous solutions of the oxides of sulfur and calcium and between the aqueous solutions
What would be the effect of performing your kinetics experiments at a lower temperature than the one you used?
draw all three resonance structures for the carbocation intermediate that results from STEP 2 in the electrophilic aromatic substitution reaction when benzoic acid reacts with Br2 in the presence of FeBr3
How many grams of ethylene glycol C_2H_6O_2 must be added to 1.00 kg of water to produce a solution that freezes at -3.44 C?
Calculate the amount of heat required to heat a 3.5 kg gold bar from 21 degrees celsius to 67 degrees celcius.
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