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Suppose you have two 1-L flasks, one containing N2 at STP, the other containing CH4 at STP. How do these systems compare with respect to
(a) number of molecules,
(b) density,
(c) average kinetic energy of the molecules,
(d)rate of effusion through a pinhole leak?
A reaction has a first order rate constant of 4.31x10-5 s-1 at 25oC and 0.00111 s-1 at 65oC. What is the value of the rate constant at 43oC
if the methane contained in 4.00 l of a saturated solution at 25 circ rm c was extracted and placed under stp
How much heat is released when 75 g of octane is burned completely if the enthalpy of combustion is -5500 kJ/mol C8H18? C8H18 + 25/2 O2 --> 8CO2 + 9H2O
Problem- Canola and corn oils have similar average chain lengths but significantly different percentages of unsaturated fatty acids. Discuss the differences in properties of the soaps made from canola and corn oil. How does the amount of unsaturat..
A 10.00 mL 0.25 M formic acid sample is being titrated with 0.25 M NaOH. What is the pH of the solution after adding 15.00 mL NaOH solution?? Ka=1.8x10-4
Commercial concentrated nitric acid is 69.0 % by mass HNO3 and has a density of 1.42 g/mL. Calculate the molarity of concentrated nitric acid.
Question- When preparing cyclopentylmagnesium bromide from bromocyclopentane and magnesium there is one unavoidable side reaction that often takes place and could reduce the yield of the reaction. Draw a reaction to illustrate this phenomenon
A series of lines in the spectrum of neutral Li atoms rise from combinations of 1s22p12p with 1s2nd12D and occur at 610.36nm, 460.29 nm, and 413.23 nm The d orbitals are hydrogenic. It is known that the 2p term lies at 670.78 nm above the ground s..
Calculate the volume (in liters) occupied by 2.08 moles of nitric oxide (NO) at 5.84 atm and 76°C.
1. a solution of vinegar has a ph of 2.85. calculate thehydronium ion concentratation and the hydroxide ion
a solution is prepared by mixing 66.7 g h2o with 33.3 g hoch2ch2oh ethylene glycol. what is the concentration of
Problem- Do medical instruments such as an EKG or an EEG measure voltage in series or in parallel
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