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Zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following equation: Zn(s) + 2HCl(aq) ZnCl2(aq) + H2(g) The product gas, H2, is collected over water at a temperature of 25 C and a pressure of 755 mm Hg. If the wet H2 gas formed occupies a volume of 9.94 L, what is the number of mols of Zn reacted? The vapor pressure of water is 23.8 mm Hg at 25 oC.
Both anthracene and phenanthrene will undergo addition with Br2. Anthracene adds Br2 at the 9- and 10-position. Is this consistent with the MO(s) shown in the SHMO program?
The absorbance at 595 nm was 0.78 and,according to a standard curve, corresponds to 0.015 mg of proteinon the x axis. What is the protein concentration of the original solution?
Calculate the wavelength of the light in nanometers corresponding to this transition. You can use the following values for your calculations: Planck's constant (h) = 6.626x10^-34 Jxs, speed of light (c) = 2.998x10^8 m/s, and 1m=10^9nm.
What conclusions can you draw concerning structures of species containing the same number of atoms and the same number of valence electrons?
the specific gravity of mercury is 13.64 . what would be the mass of a sample of mercury that occupies a volume of 4.55
Write a balanced chemical reaction for the formation of a free fatty acid from a soap molecule under acidic conditions.
How would the Rf values change if you used pure dichloromethane ( no methanol ) as the mobile phase for the TLC separation of curcumin
Aldo Reaction Major and Minor Products from Benzaldehyde and Cyclohexanone. Why is the one you chose the major product
consider the following reaction So2Cl2 + Cl2. A reaction mixture is being made containing an initial So2Cl2 of 2.3 x 10 -2. At equilibrium Cl2 = 1.0 x 10 -2. Calculate the value of the equilibrium constant
3-di-t-butylcyclohexane exists in two forms that are known as the chair and boat conformations. at 580k 6.42 of the
synthesis gas can be made by reacting red-hot coal with steam. estimate the temperature at which the equilibrium
Vanillin is the substance whose aroma the human nose detects in the smallest amount. The threshold limit is 2.0 x 10^-11 g per liter of air. If the current price of 50.0 g of vanillin is $103 determine the cost to supply enough vanillin so that th..
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