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Phosphorus pentachloride decomposes according to the chemical equation Kc=1.80@250C PCL5(g)<??>PCL3(g)+CL2(g) A 0.240 mol sample of PCl5(g) is injected into an empty 3.95 L reaction vessel held at 250 °C. Calculate the concentrations of PCl5(g) and PCl3(g) at equilibrium.
how many joules of heat are produced for each electron? c. If the circuit operates for thirty mins, how many mles of electrons will have flowed through the resistor?
what is the concentration ratio of the free (and potentially toxic) Pb^2+ (aq) in the blood to the much less toxic Pb^2+ -EDTA complex
Nicotine in cigar smoke (pH is much more readily absorped through the mucous membranes of the mouth than is nicotine in cigarette smoke pH
A 20.0-L nickel container was charged with 0.889 atm of xenon gas and 1.40 atm of fluorine gas at 400 C. the xenon and fluorine reacts to form xenon tetrafluoride. what mass (g) xenon tetrafluoride can be produce assuming 100 % yield? answer in (g..
A creature moves at a speed of 3.20 furlongs per fortnight (not a very common unit of speed). Given that 1 furlong = 220 yards and 1 fortnight = 14 days
The density of tungsten is 19.35 g/cm3. A sample of tungsten is placed in a graduated cylinder containing 30.0 mL of water and the water level rises to 34.0 mL. What is the mass in grams of the sample of tungsten?
How many moles of NaOH are needed to react with 24.36 mL of 0.4921 M oxalic acid solution
you have a hydrochloric acidsolution with a pH of 1.8. How many mL of sodium hydroxide with a pH of 11.8 would be used to neutralize 20.0 mL of the acid solution.
What would be the major product if 1,4-dibromo-4-methylpentane was allowed to react with one equivalent of silver nitrate in ethanol. It is for a lab on the relative reactivity of alkyl halides in nucleophilic substitution reactions.
For the gas-phase reaction shown below, choose the answer which indicates how the rate of change of H2O is related to the rate of change of C3H6.
The greater volume per mole at the higher temperature indicates greater average intermolecular distances and hence weaker intermolecular forces.
When the elements below are burned, they emit light of a specific wavelength, listed below. Calculate the frequency for each and determine whether the light emitted is visible, UV, infrared, etc.
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