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in a coffee-cup calorimeter 125 grams of cacl2 are added to 1380 grams of water at 242 degree celsius after all of the
consider the following balanced chemical reaction 2al 3h2so4---gtal2so43 3h2 ahow many grams of al2s043 can be
the heat of combustion of ethanol c2h5ohl is -1367 kjmol a batch of sauvignon blanc wine contains 106 ethanol by mass
consider the decomposition of liquid benzene c6h6l to gaseous acetylene c2h2g c6h6l -gt 3 c2h2 g change in enthalpy
consider the following reaction 2 ch3ohg -gt 2 ch4g o2 change in enthalpy 2528 a is this reaction exothermic or
for each of the following salt solutions indicate whether the solution will be acidic basic or neutral then using data
predict whether each of the following reactions will be spontaneous at all temperatures nonspontaneous at all
indicate whether each process produces an increase or decrease of the entropy of the system boiling of ethanol
what is the concentration of free cu2 in an aqueous solution prepared as 025m in cu2 and 150m nh3 cu2aq 4nh3 cunh342
calculate the molar solubility of amgoh2 in 025m naohaqksp 18x10-11 bbaso4 in 0010m na2so4ksp
the normal boiling point of 1-butanol is 1178 c 1-butanol l 1 atm 1-butanolg 1atm delta h4382 kj calculate the boiling
at 765 k kp460 for the reaction h2g i2g 2hig awhat is delta g for a mixture at equilibrium at 765k bwhat is delta g
mixtures of helium and oxygen can be used in scuba diving tanks to help prevent the bends for a particular dive 46l he
a sample of n2 gas occupies 240 l at 20degc if the gas is in a container that can contract or expand at constant
a galvanic cell is constructed using the standard half cells al3aqals and cl2gcl aq e redal3al -166 v and e redci2ci-
with of the following will change the value of an equilibrium constant a changing temperature b adding other
determine the following characteristics of the titration curve for 200 ml of 020 m nh3aq tiltreated with 025 m hiaq a
consider the following reaction nh3g hcig -gt nh4cis delta g kjmol nh3g -167 hcig -9527 nh4cis -2039 a calculate delta
what happens to the average kinetic energy of the particles in a sample of matter as the the temperature of the sample
which one of the following compounds is the most acidic please explain a 1-phenylethanol b
calculate the concentrations of all species in a 0100 m h3po4 solution given the following ka 75 x 10-3 for h3po4- 62 x
preparation of chromium complexes such as cren3clo43 the typical starting material is crcl3 6h2o when combined with
the reaction of crcl3 with liquid nh3 to give yellow crnh36cl3 often has a low yield since the reaction tends to stop
choose one of the oxidative protection enzymes other than superoxide dismutase describe the metal containing active
consider a hypothetical equilibrium that exists between compounds a and b at room temp 298 k the gdagger for the