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A microwave oven operating at 1.22 x 108 nm is utilized to heat 150 ml of water roughly the volume a tea cup from 20 C to 100 C. Compute the number of photons needed if 92% of microwave energy is converted to the thermal energy of water.
A mixture of gases contains 1.35 g of N2, 2.64 g of H2, and 2.38 g of NH3. If the total pressure of the mixture is 1.64 atm, what is the partial pressure of each component. PN2 atm PH2 atm PNH3 atm
Determine both delta G and K when X represents CL2 and I2. Which reaction(s) is/are spontaneous. Which reaction happens to the greatest extent?
If 225.6 grams of calcium phosphate are produced in a precipitation reaction, how many moles of the salt have been formed
40ml of solution that was saturated with calcium oxalate required 1.76 ml of .00101 M permanganate to titrate it. what is the ksp value for calcium oxalate
A gas at 89.0°C occupies a volume of 0.67 L. At what Celsius temperature will the volume increase to 1.12 L
In chemical reactions the total number of moles of products must be the same as the total number of moles of reactants.
Calculate the standard entropy of the condensation of chloroform at its boiling point, 335 K. The standard molar enthalpy of vaporization of chloroform at its boiling point is 31.4 kJ x mol-1.
14 g of nitrogen is reacted with 6.0 g of hydrogen to produce 9 g of ammonia according to the chemical equation shown below. Determine the limiting reactant, theoretical yield of ammonia in grams, and percent yield of ammonia.
Draw a detailed mechanism for the FeBr3-catalyzed reaction of the ethylbenzene with bromine, and show why the sigma complex (and the transition state leading to it) is lower in energy for substitution at the ortho and para position than it is for ..
a quantity of 1.922g of methanol ch3oh was burned in a constant -volume bomb calorimeter. consequently the temperature
what is the change in enthalpy for 2.854 moles of the liquid?
A stainless steel spoon weighs 25.2 g and is at a temperature of 18.5 oC. It is immersed in 81.7 mL of hot coffee (T = 84.0 oC) in a Thermos flask.
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