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A 55.0-L steel tank at 20.0°C contains acetylene gas, C2H2, at a pressure of 1.39 atm. Assuming ideal behavior, how many grams of acetylene are in the tank?
What volume of water, in gallons would be required to fill a 750 mL container? 1 liter = 0.265 gallon Calculate the volume of millimeters for each of the following
An excited electron in a hydrogen atom relaxes to the n=4 level emitting light with a frequency of 1.141*10^14 Hz. In what principal quantum level did the electron begin?
A lungful of air (500 mL) contains 4.1% CO2 by volume. How many grams of KO2(s) is needed to remove the CO2 from a lungful of air at STP according to the following reaction?
a sample of gas occupies a volume of 364 ml at 1.28 atm and 27 oc. calculate the volume of the gas if its temperature
Would you expect to find more dissolved oxygen in ocean water around the Northern latitudes or in ocean water close to the equator?
If 132 mL of wet H2 is collected over water at 24°C and a barometric pressure of 736 torr, how many grams of Zn have been consumed?
propanol (p*1 = 20.9 torr at 25 °C) and 2-propanol (p*2 = 45.2 torr at 25 °C) form ideal solutions in all proportions. Let x1 and x2 represent the mole fractions of 1-propanol and 2-propanol, respectively
Elements in the first short period are limited by the octect rule whereas those in the higher period can expand their valence shells. Describe what this means, account for this phenomenon and give an example of each.
Patients suffering from respiratory disorders are often treated in oxygen tents in which the atmosphere is enriched in oxygen. What is the partial pressure of O2 in an oxygen tent consisting of 45% O2 for an atmospheric pressure of 753 mm Hg?
he worked up the reaction and isolated 2.4 g of MnCl2. What was his percent yield?
A semiconductor of n-type is know to have an electron concentration of 3 x 1018 m-3. If the electron drift velocity is 100 m/s in an electric field of 500 V/m
what is the internal energy change of a gas gives off 312 of heat while being compress 862mL by a pressure of 1.64 bar. what are internal energy change in surrounding and universe for the process
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