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a) A gas occupies 8.4 L at a pressure of 740 mmHg. The gas expands at constant temperature to a final volume of 15.5 L. Compute the new pressure.
b) A 2.5 L sample of gas at 1.25 atm is heated from 20oC to 120oC at constant pressure. What is the final volume of the gas?
If the pressure of CO2 is 0.550 atm, what concentration of carbon dioxide can be dissolved in water at 0.00C.
A solid laboratory unknown contains two substances, lead(II) carbonate and potassium carbonate. A 5.000 g sample of this unknown was treated with aqueous nitric acid to dissolve it, then, after further treatment to adjust the acidity, it was treat..
A cube of a gold with a volume of 59 cm3 has a mass of 980 g. The density of pure gold is 19.3 g/cm3. What is the percent error of the measured density?
What is the total mass of AlCl3 in this sample? b. How many moles of AlCl3 are in this sample?
One of the lines of the hydrogen line spectrum has a wavelength of 434.1 nm. It is known that all of the visible lines of the hydrogen spectra result from an electron
For the equilibrium H2+CO2-> Kc= 3.18 at 1106K. If each of the 4 species was initially present at a concentration of 3.000M.
Multiple choice questions in Nuclear reactions - make nuclear fission more efficient, which device is used in a nuclear reactor to slow the speed
Calculate the pH and the concentrations of all species present H3O+, F-, HF, Cl-, OH- in a solution that contains 0.10 M HF Ka = 3.5*10^-4 and 0.10 M HCl.
The volume of a sample of gas, initially at 25oC, increase from 158 ml to 450 ml. What is the final temperature (C) if the pressure in the container is kept constant.
Using a reasonable range of temperatures, determine the apparent (or global) activation energy of NO formation during a combustion process
Using the equilibrium constant given for the reaction below, calculate the equilibrium constant for the following reaction: 3SO3(g) + 3NO(g) = 3SO2(g) + 3NO2(g) Kc=?
Determined if CS 2 of 2.500 grams mix with an excess of chlorine gas , 9.310 Kilo joule of heat is evolved. What sort of reaction is this , Is the reaction exotermic also find out delta H for the reaction?
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