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The partial pressure of a compound A changes as follows: time 0 10 20 30 40 50min PA 4.00 2.94 2.32 1.92 1.64 1.42 Pa Make a graph of PA versus time. Use your graph to evaluate (i) the average reaction rate (in Pa min-1) over the first 40 minutes, and (ii) the instantaneous reaction rate (in Pa min-1) at time = 40 min.
A compound of bromine and fluorine is used to make UF6, which is an important chemical in processing and reprocessing of nuclear fuel. The compound contains 58.37% by mass of bromine. Determine its empirical formula.
Compute the mass of copper dissolved during electrolysis in a danielle cell if the charge passed through the electrode is 30.62
A flask with stopper has a mass of 79.310g. A 25.0 ml sample of an unknown organic liquid was pipeyyed into the flask and gave a total mass of 97.010g. Find the density of the unknown liquid.
Carbon monoxide detectors sound an alarm when peak levels of carbon monoxide reach 100 parts per million (ppm). This level roughly corresponds to a composition of air that contains 400,000 micrograms per cubic meter of air.
Methane and oxygen react to form carbon dioxide and water
A sample of gas has an initial volume of 13.8L at a pressure of 1.26 atm If the sample is compressed to a volume of 10.8L, what will its pressure be?
Define the single bond cleavge processes mass fragmentation associated with common functional groups
The molar solubility of manganese (II) carbonate is 4.2 × 10-6 M. What is Ksp for this compound
Why is the E isomer of 1,2-dibenzoylethylene more stable than the Z isomer. is this why irradiation goes from E to Z and not the other way around. also discuss polarity differences between the two isomers.
why would the chemiluminescence be more pronounced than with the flask stoppered? Why is the chemiluminescence even more pronounced with the ferricyanide/hydrogen peroxide mixture?
two allotropes of tin occur near room temp. the first form of tin is gray tin and is stable at temp. below 13.2
Why do you suppose that the dehydration of cyclohexanol to cyclohexene has been the tradiotional experiment to illustrate the acid-catalyzed dehydration of an alcohol to an alkene?
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