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Two gases, nitric oxide (NO) and oxygen, are initially confined to two separate glass flasks, connected by a tap of negligible volume. Initially, there is 6L of NO at a pressure of 2 atm and 2L of O2 at 2atm. The tap is opened, allowing the gases to mix and react. Assume constant temperature and the reaction goes to completion, producing as much nitrogen dioxide (NO2) as possible according to the following equation. What is the total pressure, in atm, in the system after the reaction?
Determine the mass of Al is needed to combine with 3.077 kilo grams of Ammonium per chlorate NH 4 ClO 4 for this reaction? express your answer in units of g
A 0.50 sample of vegetable oil is placed in a calorimeter. When the sample is burned, 18.9 are given off. what is the caloric value of the oil
Write a balanced equation for the reaction of NaCH3COO and HCl. Express your answer as a chemical equation.
A canister is filled with 320 of ice and 100. of liquid water, both at 0 . The canister is placed in an oven until all the has boiled off and the canister is empty.
An unknown organic compound has the empirical formula C2H2O. A solution of 3.775 g of the unknown compound dissolved in 12.00 g of water is cooled until it freezes at a temperature of 4.72°C.
2.0 moles of a nonelectrolyte solute are added to 1.0 kg of an unknown solvent. The freezing point is depressed by 7.9 K. Calculate the molal freezing point constant (Kf?) for this solvent.
In what order would the amino acids arginine, leucine, and lysine be eluted from a Dowex-1 column at pH 10.5? (b) In what order would glutamic acid
Suppose a black-body chamber is constructed from 55.8 g (one mole) of iron and heated to 500 K. Classical theory and the observations of Dulong and Petit indicate that the total energy of vibration of iron atoms is 3RT per mole.
A sample of nitrogen gas is contained in a piston with a freely moving cylinder. At0?C, the volume of the gas is 248 mL. To what temperature must the gas be heated to occupy a volume of 479mL.
Suppose that a student collects the following spectrophotometric data to determine the relative concentrations of HMR and MR in solution:
Give the number of valence electrons of each element and draw the Lewis structure for each molecule.
Suppose a 500 mL solution contains 0.50 millimoles of Co(NO3)2, 100.0 millimoles of NH3, and 175.0 millimoles of ethylenediamine. What is the concentration of Co 2+ (aq) in the solution?
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