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A 6.05-g sample of a Cu-Zn alloy reacts with HCL acid to produce Hydrogen gas. if the hydrogen gas has a volume of 1.51 L at 25 celsius and 721 mmHg, what is thepecent of Zn in alloy?
A bu?er was prepared by mixing 1.0 mole of ammonia and 1.0 mole of ammonium chloride to form an aqueous solution with a total volume of 1.00 liter.
water and phenol are only partially miscible at temperature below 66.8oc. in a mixture prepare at 29.6oc from 50.0g
what is the concentration of H2 in the water in grams per milliliter? (See Appendix G in your textbook for the vapor pressure of water.)
describe any important differences between benzopinacol and benzopinacolone in the ir and hnmr
Give the product expected from the reaction of cis-1,2-diacetylcyclohexane with aniline. Suggest a reason for the unsuitability of 2,4-dinitroaniline as a replacement
A gas filled balloon with a volume of 12.5 L at 0.90 atm and 294 K is allowed to rise to the stratosphere where the temperature is 268 K and the pressure is 1.0 millibar. What is the final volume of the balloon ? (1.0 atm = 1.013 bar).
If the 300MHz 1H NMR spectrum of a compound has a doublet with one signal at 6.10ppm and the second signal at 6.05 ppm, the value of the coupling constant is?
Titanium (IV) oxide, TiO2, is heated in hydrgoen gas to give water and a new titanium oxide, TiO. If 1.598 g of TiO2 produces 1.438 g of TiO, what is the formula of the new oxide
Draw a detailed mechanism for the FeBr3-catalyzed reaction of the ethylbenzene with bromine, and show why the sigma complex (and the transition state leading to it) is lower in energy for substitution at the ortho and para position than it is for ..
Calculate thePH at the equivalence point in titrating 0.100 M solutions of each of the following with 9.0×10^ 2 M NaOH... calculate the ph for HCLO2
What is the pH of a solution that results from mixing together equal volumes of a 0.110 M solution of acetic acid and a 0.0550 M solution of sodium hydroxide
a 0.1723-g sample of solid magnesium is burned in a bomb calorimeter that has a heat capacity of 1769 jdeg c. the
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