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A certain substance has a heat of vaporization of 65.89kJ/mol. Explain at what Kelvin temperature will the vapor pressure be at 5.50 times higher than it was at 297k?
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Carbon-carbon single bonds in organic molecules have energies about350. kJ/mol. What is the corresponding wavelength? Could UV lamps(248 nm) be used to break these bonds?
Why would the fact that red blood cells are malformed cause a problem with their ability to carry oxygen? How would this affect a person stricken with this disease?
What is the density in g/mL of a ball that has a mass of 22.1 ounces and a diameter of 2.04 inches? Will it float if placed in a bucket of water? The answer is "no." Please can you help me Provide the calculations to pro ...
A chemist adds 370.0 mL of a 0.371M barium acetate (Ba(C2H3O2)2) solution to a reaction flask. Calculate the millimoles of barium acetate the chemist has added to the flask. Round your answer to 3 significant digits.
1) If Congress taxes CO2 production at $40 per ton of CO2, what is the tax to burn one ton (2000 pounds) of coal which is 75% carbon? 2) How much heat energy can you get from burning that ton of coal? Take the book value ...
A 20.0 mL sample of 0.200 M HBr solution is titratedwith 0.200 M NaOH solution. Calculate the pH of the solution after the following volumes of base have been added. (19.8 mL)
Magnesium metal(0.100 mol) and a volume of aqueous hydrochloric acid that contains0.500 mol of HCl are combined and react to completion. How manyliters of hydrogen gas, measured at STP, are produced? Mg(s) + 2HCl(aq) --- ...
Aqueous lithium sulfate was mixed with aqueous strontium chlorate, and a crystallized strontium sulfate product was formed. Consider the other product and its phase, and then write the balanced molecular equation for t ...
A 1.000 g sample of copper metal is heated in a crucible and after 15 minutes themass of the crucible contents is 1.111 g. Calculate the mass of copper (II) oxide that was produced.
An analysis of an oxide of nitrogen with a molecular weight of92.02 amu gave 69.57% oxygen and 30.43 % nitrogen. What is the empirical formula of the compound?
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