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Determine the root-mean-square speed of CO2 molecules that have an average kinetic energy of 4.2 x 10^-21 J per molecule.
Using the following thermochemical equation, determine the amount of heat produced per kg of CO2 formed during the combustion of benzene (C6H6). 2 C6H6(l) + 15 O2(g) ? 12 CO2(g) + 6 H2O(g) ?H°rxn = -6278 kJ
If solar radiation is 1200 W/m^2 , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation. A green leaf has a surface area of 2.75 cm^2 .
Which bronsted-lowry acid is not considered to be a strong acid in water. A)H I B)H Br C)H2S O3 D)H NO3
we need to dry something like protein and drugs, how to deal with them to avoid the deactivation phenomenon?
A solution contains 0.063g of oxalic acid, H2C2O4*2H2O, in 250 mL. What is the molarity of this solution?
For a reaction at equilibrium, which of the following is the best way to think about it?
Determine the number of signals expected in the carbon 13 spectra for each of the following compounds. propyl benzene and 1,2,4 trimethyl benzene
Cyclopropane is made up of 85.7% C and 14.3% H. What is the molecular formula of cyclopropane? And what is it chemical formula?
In the NMR Spectra there is : 2 quartet( one has 2 hydrogens and the other has 3 hydrogens they are both located in the range 7.5-6.5) and there are two triplets at 4.5-3.5 and they both have two hydrogens, and there is a singlet located at 2.0 th..
Draw a tertiary carbocation, a secondary carbocation, and a primary carbocation, each with the formula C6H13.
When a mixture of 10.0 g of C2H2 and 10.0 g of O2 is ignited, the resultant combustion reacion produces CO2 and H2O. How many grams of C2H2, O2, CO2
Consider the following reaction at constant P. Use the information here to determine the value of Delta-Ssurr at 398 K. Predict whether or not this reaction will be spontaneous at this temperature.
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