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Indicate whether the final volume of gas in each of the subsequent is the same, larger or smaller than the initial volumeA) A volume of 500ml of air on a cold winter day at 5 degrees is breathed into the lungs, where the body temperatures are 37 degrees Celsius?
Consider two different solutions of the same UV-absorbing compound. Upon UV-analysis, Solution B gave an absorbance of 1.5 and Solution A gave an absorbance of 0. 5 at the same wavelength. Solution B is higher in concentration by what ratio (or per..
Calculate the fraction of atom sites that are vacant for lead at its melting temperature of 327C
Complete and balance the following if a reaction occurs. Write your answer as net ionic equation and include physical states of all compounds (including for water).
Calculate the energy in kJ/mol needed to remove the electron from n=1 in a mole of hydrogen atoms. what is this energy called?
consider the adiabatic expansion of 0.500 mol of an ideal monatomicgas with cvm 32r. the initial state is described by
Suppose that a student collects the following spectrophotometric data to determine the relative concentrations of HMR and MR in solution:
The equilibrium pressure of H2 over solid uranium and uranium hydride, UH3, at 500 K is 139 Pa. Calculate the standard Gibbs energy of formation of UH3(s) at 500 K.
What is the percent ionization of cyanic acid (Ka = 2.0 x 10^-4) in a buffer of 0.50 M HCNO and 0.10 M NaCNO?
What is the mole ratio of benzene to n-octane in the vapor above a solution of 20.0% benzene and 80% n-octane by mass at 25C? The vapor pressures of n-octane and benzene at 25 c are 11 torr and 95 torr, respectively
Calculate the final temperature of 33 mL of ethanol initially at 13 degrees Celsius upon absorption of 657 J of heat. (density of ethanol =0.789 g/mL).
Which of the following ideal aqueous solutions would be predicted to have the highest vapor pressure. 2.00 m MgBr2
a sample of an element has a volume of 81 ml and a density of 1.73 gml. what is the mass in grams of the sample round
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