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Make the following assumptions: 1) The density of liquid water at 100C is 1.00 g/mL; 2) the vapor is adequately described by the ideal gas equation; 3) the external pressure is constant at 1.00 atm; and 4) the heat of vaporization of water is 2.26 kJ/g. What is q for the vaporization of 1.00 g of liquid water at 1.00 atm and 100C, to the formation of 1.00 g of steam at 1.00 atm and 100C?
Nitrogen dioxide decomposes according to the reaction given below where Kp = 4.48 10-13 at a certain temperature. 2 NO2(g) 2 NO(g) + O2(g) A pressure of 0.23 atm of NO2 is introduced into a container
suppose 1.5 mol of methane is allowed to react with 4 mol of oxygen. what is the limiting reagnant?
Nitrogen (N2) reacts with hydrogen to give ammonia (NH3): N2 + 3H2 -> 2NH3 If 30 g of N2 reacts with excess hydrogen, what the mass of ammonia formed would be?
A saturated solution of copper(II) sulfide, CuS, has [Cu^2+]=1.1x10^-18 M. what is the value of Ksp for CuS
Elemental exonium (not a real element) consists of 2 major isotopes Abundance Mass 31% 95 amu,69%. 118 amu What is the atomic weight for exonium.
sodium chloride is added to the water-cyclohexanone diethyl ether mixture. Explain how the addition of sodium chloride aids in isolation of the cyclohexanone product.
calculate the molar heat of combustion of liquid methanol . a. -8.17 x 105 kJ/mol b. -817 kJ/mol c. 1.88 kJ/mol d. -0.8 kJ/mol e. none of the above
Green light of a wavelength 516 nm is absorbed by an atomic gas. What is the energy difference between the two quantum states involved in the transition.
Potassium reacts with oxygen to make potassium oxide, K2O. What is the maximum mass (g) of K2O(s) that could be prepared from 8.18 g of K(s) and 2.72 g of O2(g)?
Fears of radiation exposure from normal use of such detectors are largely unfounded. Identify reasons why ^241Am smoke detectors are perfectly safe.
A 643 mL gas sample at STP is compressed to a volume of 285 mL, and the temperature is increased to 26C. What is the new pressure of the gas in Pa? Answer in units of Pa.
when it dissolves in water (3 moles of ions/mole of salt). Calculate the freezing point of a solution containing 18.8g of Na2SO4 in 465g of water. The Kf for water is 1.86C kg mol-1.
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