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At 20 degrees celsius, the vapor pressure of ethanol is 45 torr, and the vapor pressure of methanol is 92 torr. What is the vapor pressure at 20 degrees Celsius of a solution prepared by mixing 26 g methanol and 73 g ethanol?
Question- In the gas phase nitric oxide reacts with sulfur trioxide to give nitrogen dioxide and sulfur dioxide.
Consider the following thermochemical equations : 8Mg(s) + Mg(NO3)2(s) ? Mg3N2(s) + 6MgO(s) ?H°rxn = -3884 kJ Mg3N2(s) ? 3Mg(s) + N2(g) ?H°rxn = +463 kJ 2MgO(s) ? 2Mg(s) + O2(g) ?H°rxn = +1203 kJ Use the above equations to calculate the ?H°f (in k..
Do you think those SNPs are going to prove to be really significant, or just the result of filling-in some blank-spots in the DNA
Arrange these aqueous solutions, each 10% by mass in solute, in order of increasing freezing point and boiling point. Explain your reasoning.
what is the effect of a temperature change on a chemical reaction initially at equilibrium? how does the effect differ
Determine the activation energy in kJ/mol for a first order reaction if its specific rate constant 5.90e-05 s-1 at 400. K and 4.06e+02 s-1 at 600. K.
a diatomic gas at high temperature shows a series of vibrational absorptions. by accident some of the data are lost but
What is the cell potential at each of the given volumes as a. 5.00 mL,b. 12.00 mL,c. V equilvalence pointd. 48.00 mL of added Ce4+?
A sample helium gas takes up 1021 ml at 679 mmHg. For a sample at a consistent temp find out the volume of helium at 745 mmHG
The bonding in ferrocene involves sharing of the 6 electrons from each cyclopentadienyl ring with the iron atom. Based on the electronic configuration of the iron species in the compound, show that a favorable 18-electron inert gas configuration i..
determine the renal extraction ratio for CHF patients it CHF reduces renal function by 1/2 and state and give explanation which is the more abundant isotopic form of copper.
Problem- If 38.5 mL of lead (II) nitrate solution reacts completely with excess sodium iodide solution to yield a 0.628 g of precipitate, what is the molarity of lead (II) ion in the original solution
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