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A gas is heated from 269 K to 283 K while its volume is increased from 21.5 L to 37.0 L by moving a large piston within a cylinder. If the original pressure was 1.10 atm, what would be the final pressure?
It takes 485 J of energy to raise the temperature of 104.1 g mercury from 20.0°C to 53.5°C. Calculate the specific heat capacity and the molar mass capacity of mercury.
a mixture of propane 75 mol and hydrogen are burned with 25 excess air. fractional conversions of 95 of the propane and
1) Which of these electron configurations has the 4F term symbol for its ground state? p3 d3 d4 f2 f3
To provide energy for the human, the O2 is reduced to H2O duing food oxidation by the following reaction: Recall that 1 ampere is equal to a charge of 1 coulomb per second flowing past a point in a circuit.
An aqueous solution is 22.0% by mass ethanol, CH3CH2OH, and has a density of 0.966 g/mL. what is molality of ethanol
Calcium Hydroxide is a strong electrolyte. Determine the concentration of each of the individual ions in a 0.30 M Ca (OH)2 aq solution.
In writing the chemical formula of a compound such as Al2O3, the following statement is a true relationship between the Al and O atoms
A gas is expanded in a cylinder from 2.00 L to 12.0 L against an external pressure of 1.80 atm. At the same time, it absorbs 2.56 x 103 J of heat from the surroundings. Calculate ?E of the gas in J. (1 L•atm = 101.3J)
Consider 1 mole each of gaseous He and N2 at the same temperature and pressure. The diameter of N2 is 1.7 times that of He. State which gas (if any) has the greater value for: a) ; b) crms; c) average translational energy ; d) Z1; e) Z11; f) de..
if the height of the mercury column in the leveling bulb is 20 mm greater than that in the gas buret and the atmospheric pressure is 650 mm, what is the pressure of the gas trapped in the buret?
A nail is measured with a ruler and its length is reports as 5.46 cm. Select ALL the statements that are correct about the certainty and uncertainty represented in this recorded measurement.
The reaction was allowed to proceed for 15 minutes, and the rate was measured again. What would you predict about the second measured rate relative to the first? The reaction rate would be faster. The reaction rate would be slower. The reaction ra..
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