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How many grams of ammonium chloride (pKa=9.24, 58.491 g/mol) should be added to 500 mL of 0.1060 M ammonia to make a buffer with pH=8.5 (to three s.f.)
in an industrial process nitrogen is heated to 400kelvin at a constant volume of 1m3.the gas enters a container at 300k and 100atm. the mass of the gas is 92.4kg. use the vander waals equation to determine the approximate pressure of gas
Why is cycloheptatrienone stable while cyclopentadienone is quite unstable. Explainthe difference in their stabilities.
what is the molecular formula of a compound with a percentage composition 26.7 p 12.1 n and 61.2 cl and a molecular
Zinc hydroxide is only very slightly soluble in water. The reaction by which it goes into solution is: Zn(OH)2 Zn2+ + 2 OH- b. its possible to dissolve significant amounts of Zn(OH)2 in solutions in which the concentration of either Zn2+ or OH- ..
They are all buffer solutions and would all have the same capacity 2) Of the following solutions, which has the greatest buffering capacity?
A sample of natural gas at STP is 78% CH4 and 22% C2H6 by volume. How many moles of each gas are present in 2.00 L of the mixture. Assume Ideal gas behavior.
Which statement about alcohols is not correct?
A 0.1510 gram sample of hydrocarbon produces 0.5008 gram CO2 and 0.128 gram H2O in combustion analysis. Its molecular weight is found to be 106.
What is the wavelength of the photons emitted by hydrogen atoms when they undergo n=4 to n=2 transitions in nm?
What is the concentration (molarity) of the solution prepared by dissolving 1.83g of Co(NO3)2 in HCl acid to give a total volume of 100 mL
Draw diagrams to show the various orientations in which a p orbital and a d orbital on adjacent atoms may form bonding and anti-bonding molecular orbitals.
Hydrogen gas is contained in a one-liter vessel at "STP"(0 degrees Celsius and 1 Std. Atm.). Flourine gas is contained in a second one-liter vessel at the same conditions of temperature and pressure.
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