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Natural gas is a mixture of hydrocarbons, primarily methane (CH4) and ethane (C2H6). A typical mitxture might have Xmethane=0.915 and Xethane=0.085. What are the partial presssures of the two gases in a 15.00-L container of natural gas at 20. C and 1.44 atm? Assuming complete combustion of both gases in the natural sample, what is the total mass of water formed?
Calculate how long will it take for a sample of radionuclide with a half-life of 27.1 days decay to 1.0% of its original value.
Why methanol has lower boiling point than ethanol but higher heat of vaporization. Comparing to Propanol has higher boiling point but lower heat of vaporization than ethanol
Calcium hydride reacts with water to form calcium hydroxide and hydrogen gas. How many grams of calcium hydride
Draw a formula for the lowest molecular weight compound that contains C, H, and possibly O, N or S, is a chiral compound, contains ONLY one functional group, and is a sulfide.
What is the percentage of copper (by mass) in copper(II) nitrate trihydrate. Cu(NO3)2 : 3H20
How do the shapes of molecules determine their physical and chemical properties? Provide at least two examples
Calculate the energy in kJ required to convert 2.11 mol of sodium metal at 25 degrees celsius to 2.11 mol of gaseous Na+ ions. (Ionization energy of Na (g) is 495.9 kJ/mol.
when 64.5 g of hcl are allowed to react with 17.6 g of o2 50.4 g of cl2 are collected. determine the limiting reactant
Determine the entropy change for heating nitrogen gas from 25 oC to 100oC under the following conditions. Cp =29.1J·K?1 ·mol?1.
Further studies will refine how much water is needed for endangered species protection. States hope it will be the 130-150 KAF initially agreed upon rather than the 415 KAF the FWS thinks it is. What happen if cooperative agreement fails?
Which of the available reagent(s), if any, will oxidize Fe(s) while leaving Cu(s) unreacted? If none of the available reagents can be used for this purpose, then identify another reagent from the table that could be used. For each reagent you've i..
A 15.00 mL sample of HCL solution of unknown concentration was titrated with .185 M Ca(oh)2 (aq). It took 23.9 mL of the base to reach the equivalence point of the titration.
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