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Suppose water boils at 277 C when the pressure is 6128kpa and at 329C when the pressure is 12688kpa. Contrast the efficiencies of 2 Carnot steam engines under the above conditions with each operating at Tc= 25C.
In the first half-life of the sample, the total number of disintegrations counted was 2.15 X 1020 . What is the atomic weight of the unknown element
What is the equilibrium partial pressure of water vapor in the air at 25 degrees Celsius, and how much water remains in the bucket after equilibrium is established
water and glycerol ch2ohchohch2oh are miscible in all proportions. what does this mean? how do the oh groups of the
What is the minimum voltage needed to produce a reaction in the electrolysis of copper(II) sulfate using inert electrodes. This is he same as asking what is Ecell for the electrolytic cell.
a platinum ball weighing 15.1 g is removed from a furnace and dropped into a 305 g of water at 15degc. if the
Pure iron, Fe, can be produced from an ore called hermatite, Fe2O3, by reaction with carbon at high temperatures. 2Fe2O3+3C ---> 4Fe+3CO2. If an iron company needs to make 25 tons of iron, how many tons of hematite much react
the compound kb5o8middotx h2o was analyzed and found to contain 24.6 of water. if the formula weight of this compound
How many grams of dry NH4Cl need to be added to 2.10 L of a 0.500 M solution of ammonia, to prepare a buffer solution that has a pH of 9.00? Kb for ammonia is 1.8*10^-5.
A sculptor has prepared a mold for casting a bronze figure. The figure has a volume of 225 mL. If bronze has a density of 7.8 g/mL
IF the temperature remains constant but the pressure is changed, can the phase state be changed. Why or why not.
If you had a mixture of NaCl and Na2CO3, would the action of concentrated H2SO4 enable you to decide whether both Chloride ions and carbonate ions were present
How many mL of 0.450 M NaOH are needed to titrate 25.0 mL solution of 0.250 M FeCl3 solution? FeCl3 aq + 3NaOH arrow to Fe(OH)3 aq +3NaCl aq
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