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a 25cm3 sample of dilute sulfuric acid contains 0025 moles of acid what is the hydrogen ion concentration in the
a what terms and levels arise from the following configurations1s2p 2p3p 3p3dif hunds rule applied to these terms and
a 120 g ice cube at 000degc is placed inside a calorimeter the heat capacity of which isnbspnegligible containing 145 g
a sample of argon gas at a standard pressure occupies 1000 ml at constant temperature what volume does the gas occupy
five grams of methanenbspis placednbspin a bomb calorimeter that contains 315 grams of water at 2317nbspdegc after the
on a cold winter morning when the temperature is -13 degrees c the air pressure in an automobile tire is 15 atm if the
what is the value of the work when an external pressure of 750 torr expands a chamber from 22 liters to 97 liters
methanol is combusted in a thermally insulated balloon as depicted by the following chemical equation2ch3oh g 3o2nbspg
consider the following datanbspnbspsubstancenbspnbspdeltagdegfnbspkjmolnbspcac2-649caco3-11291cs2671which of the
tennbspgrams of octanenbspis placednbspin a bomb calorimeter that contains 200 grams of water at 2367nbspdegc after the
a 0032 mol sample of gas occupies a volume of 350ml at 300k what is the pressure of the
consider the following situationan ice cube was located in a freezer that maintained a temperature of -50nbspdegc and a
consider a chemical reaction that does 310 j of work and decreases the internal energy by 31 kj what is the total heat
bacl2na2co3gtbaco32nacl aif 350g of bacl2 is added to 2g of na2co3 which is the limiting reagent b how many g of nacl
rank the following solutions in order of decreasing h3o rank solutions from largest to smallest h3o to rank items as
given the equation n2g3h2ggt2nh3g if 700l of n2 at stp reacts with 150l of h2a how many l of nh3 is formedb how many l
in the titration hbrkohgth2okbr if 485ml of 15m hbr reached the end point of 500ml of the koh calculate the molarity of
barium hydroxide is reacted with the calcium iodide calculate how many ml of 30m baoh2 needed to react with 250ml of
coal gasification electric power plantscoal gasification electric power plants are now operating commercially in the
liquid chlorine bleach is really nothing more than a solution of sodium hypochlorite naocl in water usually the
a solution is made that is 12times10-3m inznno32 and 0170m innh3after the solution reaches equilibrium what
a glass container is sealed with a gas at 0800atm pressure and at 25 degree celsius nbspthe glass container sustain
an isotope of a radioactive element has a half-life of 25 years how long will it take for the element to decay from 200
lithium oxide is an effective absorber of carbon dioxide and can be used to purify air in confined areas such as space
hydrochloric acid is prepared by bubbling hydrogen chloride gas through water what is the concentration of a solution