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A convinced mass of magnesium is reacted with 6M HCL. The hydrogen gas liberated is collected by displacing 200 ml of water. The pressure of the gas as well as the atmospheric pressure is equalized. The atmospheric pressure is 762 mmHg. The temperature of the experiment is 27 C. Define how many moles of hydrogen have been liberated, as well as what is the mass of the magnesium that reacted?
how does nitrobenzoic acid form as a by-product during the nitration of methyl benzoate and how is it removed?
The density of pure silver is 10.5 g/cm3 at 20°C. If 5.25 g of pure silver pellets is added to a graduated cylinder containing 16.1 mL of water, to what volume level will the water in the cylinder rise
Using the Nernst equation calculate the cell voltage for: Fe(s) + Cd2+(aq) ? Fe2+(aq) + Cd(s) when the [Fe2+] = 0.17 M and [Cd2+] = 1.1 M. Potentially useful information: Fe2+ + 2e
What is the pH of a phosphate buffer when [H2PO4-] = 40 mM and [HPO42-] = 30 mM?
What is the literature melting points for borneol and isoborneol. What would be expected for the melting point range of a mixture of the two isomers.
A 0.050 M H2S solution contains 0.15 M NiCl2 and 0.35 M Hg(NO3)2. What pH is required to precipitate the maximum amount of HgS but none of the NiS
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?
3-methylbut-1-ene ---->3-methyl-2-butanone. For the reagents I put, HBr, Tert butoxide, O3 and dms. I was wondering about the O3 and dms, im not sure if that part is right.
The total pressure for a mixture of N2O4 and NO2 is 1.5 atm. If Kp=7.1 (at 25 degrees C) calculate the partial pressure of each gas in the mixture. 2NO2(g) N2O4(g)
you want to make an acetic acidacetate buffer ph 5.6 with a volume of 250 ml and a final concentration of acoh aco-
The only difference is the H+-ATP stoichiometry. Given that the pH on the outside of the xeno-mitochondrial membrane is 6.014,
Determine why the 2s and 2p orbitals on Hydrogen are degenerate and they are not in the case of Lithium and calculate Kp at 5 degrees and enter your answer in scientific notation if delta H rxn= -128 kj/mol CH 3 OH,?
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