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identities of the components in a mixture by Gas chromatography may be determined by the technique called "spiking". Suppose you had run a chromatogram of your product and then deliberately added a known sample of 2 methyl 2 butene to your product and reran the Gas chromatography. How would the new chromatogram change?
What is the pH of the buffer after the addition of 0.02 mol of NaOH? C)What is the pH of the buffer after the addition of 0.02 mol of HI? Express Numerically
A metal crystallizes in a face-centered cubic lattice. The radius of the atom is 128 pm and the density of the element is 8.92 g/cm3. What is the identity of the metal?
a sample of SO2 gas which weighs 0.81 grams has a volume of 1.20 liters when collected at 25 degrees celcius, what would be the pressure of the gas sample?
An unknown amount of water is mixed with 370mL of a 6M solution of NaOH solution. A 75mL sample of the resulting solution is titrated to neutrality with 50.7mL of 6M HCl.
A system receives 93 J of electrical work, performs 227 J of pressure-volume work and releases 155J of heat.What is the change in Internal energy of the system?
Work out the solubility of copper(II)sulfide. Take it that 1 litre of the mixture weighs 1 kg. (in g/100g), CuS (s) Cu^2+ (aq) + S^2- (aq)
A polyatomic ion containing an unknown element, E, has the chemical formula EO3 with -1 charge, and has 26 total electrons. Provide 3 possible identities of element E
The energy emitted from an atomic nucleus is found by ?' natural law scientific theory There is the same number of molecules in equal volumes of gases.?
Calculate the molar enthalpy of combustion of Phosphorous when this combustion process was carried out under the constant pressure?
Calculate the molar absorptivities for In- at 454 and 654nm, set up two simultaneous equations, and determine the molar concentrations of HIn and In- in the buffer solutions
The piston is then moved in and the heat rejected by the air reversibly at constant pressure until the volume is= initial volume. compute The net heat flow and the overall change in entropy?
a balloon is filled with helium. its volume is 5.9 at 26degrees celcius. what will be its volume at 278 degrees celcius?
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