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In one experiment 1.0 mol H2O and 1.0 mol CO are put into a flask and heated to 350 C. In a second experiment 1.0 mol H2 and 1.0 mol CO2 are put into another flask with the same volume as the first. This mixture is also heated to 350 C. After equilibrium is reached will there be any difference in the composition of the mixtures in the two flasks?
Molecular beacons are nucleic acid strands that form hairpin loops. The stem region hybridizes to close the loop and the binding energy is ΔG = -22kJ/mole at 37°C.
Electrolysis of a solution of CuSO4(aq) to give copper metal is carried using a current of 0.66 A. How long should electrolysis continue to produce 0.50 g of copper
What is the fraction of association (?) for the following potassium propionate solutions? Ignore activities. The Ka of propanoic acid is 1.34 x 10-5.
Calculate its standard heat of combustion in kilojoules C5H12O with a Delta H of -313.6 kJ/mol
Which possesses more energy a photon with a wavelength of 528 nm or a photon with a frequency
Aluminum reacts with oxygen gas in a combination reaction to produce aluminum oxide. How many moles of oxygen gas are needed to react with 1.64 moles of aluminum
The atmospheric pressure was measured to be0.9337 atm, the room temperature was 20.00oC. At this temperature, the vapor pressure of water is 17.50 torr -- but assume a 50% relative humidity as outlined in the procedure for this experiment.
Many cold packs contain ammonium nitrate and water. The dissolving of ammonium nitrate is endothermic. Which of the following best describes the energy and entropy changes that occur for the ammonium nitrate system
Identify the oxidizing agent and reducing agent. Determine the number of electrons transferred in the balanced chemical equation.
At 25 degrees celsius and 750 mm Hg, 1.05 g of this gas occupies a volume of 0.500 L. What is the molecular formula of the gas?
How many total calories do you consume from these three organic substances when you eat 1 candy bar 3 times a day?
Why is the density of an ethanol/water mixture dependant on temperature? and how would the density of the ethanol/water change IF the temperature was increased and decreased
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