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Methane gas is compressed from 22. L to 2.5 L at a constant temperature. The final pressure is 18.1 atm. What was the original pressure?
pressure= atm
an experiment was performed to determine the amount of pyridoxine (B6) in a vitamin tablet. A tablet weighing 0.4006g was dissolved in 25mL of solution
Which of the following has only a single peak in the proton NMR spectrum
a mixture containing 235 mg of helium and 325 mg of neon has a total pressure of 453 torr. what is the partial pressure of helium in the mixture?
When a catalyst is added the reaction 2SO2(g)+O2(g)?2SO3(g) takes place. At equilibrium the total pressure is 4.05atm . Find the value of Kc.
A solution of sodium chloride contains 502 g NaCI in 900 grams of water. what is the concentration of the colution in parts of a million (ppm)? Round to the nearest tens place. don't forget the unit.
An oil bath maintained at 50.5oC loses heat to its surroundings at the rate of 4.68 kJ/min. Its temperature is maintained by an electrically heated coil with a resistance of 60 operated from a 110 V line.
What is the volume of 455 mL of oxygen gas at 67.0°C and 300. mm Hg if the conditions are adjusted to 890. mm Hg and 107°C? Assume the amount of gas is held constant.
What is the kinetic energy in joules of a 1183 motorcycle moving at 63.
95.0 mL of H_2O is initially at room temperature (22 C). A chilled steel rod at 2 C is placed in the water. If the final temperature of the system is 21.4 C, what is the mass of the steel bar?
What is the concentration (mol/L) of the chromate ion in a saturated solution of silver chromate
A student dehydrated 10.0 g of 2-methyl-2-butanol with %50 sulfuric acid and obtained 6.50 g of products. Calculate the theoretical yield and the percent yield.
Determine the initial quality and temperature of the fluid mixture prior to heating. [quality x1 = 0.182, T1 = 113.3°C] b) Determine the final volume of the steam after heating. [0.546 m3 (546 liters)] Note: 1000 liters - 1 m3
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