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a buffer was made with 100ml of 0150 m hf and 100ml of 00120 m nafa calculate ph of this buffer ka of hf is 35 x 10-4b
an investment promises to pay you 500 one year from now 1000 two years from now and 5000 three years from nowif you
assume that the iron in iron ore a mixture of iron and other substances is in the form of fe3nbspthe iron content of
consider the following reaction equilibrium reaction assumed2nh3g --------gt n2g 3 h2gdelta g h2 0 delta g -164delta g
a 2l container has 1 l water and 1 l air headspace the headspace has a total pressure of 1 atm the temperature of both
if 0001 m of co2nbspis introduced into a closed container which is full of pure water and has no headspace for air what
it takes 520j to raise the temperature of an 830g piece of unknown metal from 130 c to 250 c what is the specific heat
predict the sign positive negative or zerodelta s for the reaction ch4g 2o2 -------gt 2 h2og co2gdelta g delta s and
what is the temperature innbspdegc of annbsp117nbspl sample of carbon monoxide co atnbsp747nbsptorr if it
calculate the number of moles of nitrogen gas n2 that are needed to inflate a 67-l driver-side air bag at standard
explain why le chateliers principle is equivalent to saying that a system at chemical equilibrium will be stable
a buffer consisting ofnbsph2po41-nbspandnbsphpo42- helps control thenbspphnbspof physiological fluids many carbonated
a company is planning to transport oxygen chlorine and phosphorous by train to another city identify the labels marking
how many moles of sodium hypobromitenbspnabro should be added to 100nbspl of 50times10-2nbspmnbsphypobromous
write the molecular equation complete ionic equation and the net ionic equation for a reaction between silver nitrate
for the reaction 2so2gnbspnbspo2g----gt2so3g delta hdeg nbsp-198nbspkj andnbspdelta sdeg nbsp-188nbspjk gdeg would be
what is the time frame for moving to icd-11 do you think this will be delayed as was icd-10 do you think we should move
an investment project costs 22366 and has annual cash flows of 6556 for six yearswhat is the discounted payback period
write the molecular equation complete ionic equation and the net equation for a reaction between silver nitrate and
investment x offers to pay you 4700 per year for eight years whereas investment y offers to pay you 6700 per year for
an investor has 25000 in assets and faces a difficult choice between two investments if he invests in the first
calculate the heat of combustion triangle hrxnnbsp0 for the reaction of nh3nbspwith the oxygen as per the following
for a given sample of c2h5oh g enthalpy change during the reaction is 821 kj how many liters of co2nbspgas are produced
an investment project costs 21500 and has annual cash flows of 6500 for 6 yearsif the discount rate is 15 percent what
an investor has access to a set of n securities where n is largeeach of them has an annual return variance of 025 and