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Which of the following is less soluble in hexane, ethanol or CCl3H(l). Don't try to type the subscripts, just use letters and numbers.
The chemist used a thermometer that was miscalibrated by 2(degrees)c over the entire thermometer scale. will this factory error cause the reported energy of neutralization to be higher, lower, or un
when an intense beam of green light is directed onto a copper surface, no electrons are ejected. What will happen if the green light is replaced with red light
What concentration of naphthalene in grams per liter would be needed to give an absorbance of 1.0 at 220nm
Rubidium atoms are bombarded with 131 nm light. What is the kinetic energy of the ejected electrons
Jacob carelessly added only 40.0 mL (instead of the recommended 50.0 mL) of 1.1 M HCl to the 50.0 mL of 1.0 M NaOH. Explain the consequence of the error.
what is the steric number of nitrogen trifluoride, carbon tetrabromide, phosphorus pentiodide, sulfur hexachloride, and bromine trifluoride.
Using 1M aqueous HCl, 1M aqueous NaHCO3 and 1M Aqueous NaOH, could you separate an ethereal solution of benzoic acid and salicylic acid. If so, provide a flow chart indicating how; if not, explain w
Which of the following set of quantum numbers (ordered n, l, ml, me ) are possible for an electron in an atom
how many grams of NaNO3 would you add to 250.0g of H2Oin order to prepare a solution that is 0.500 molal in NaNO3
In a reaction of copper with nitric acid, if 4.00 g of copper is used, how much copper nitrate will be produced
What velocity must an electron have in order to have a de Broglie wavelength of 1.00 A? What velocity must a proton have in order to have the same de Broglie wavelength
For 1-Chloropropane, draw 3 eclipsed, 2 gauche, and 1 anti conformations. Assume a chloro is the same size as a methyl group.
What is the wavelength of a baseball having mass 100.0 g traveling at a speed of 160 km/hr? What is the wavelength of an electron traveling at the same speed
Ammonia rapidly reacts with Hydrogen Chloride, making ammonium chloride. Calculate the number of grams of excess reactant when 3.80g of NH3 reacts with 4.20g of HCl
what is the central atom in nitrogen trifluoride, carbon tetrabromide, phosphorus pentiodide, sulfur hexachloride, and bromine trifluoride
TiCl4(l)+2H2O(l)=TiO2(s)+-4HCl(g), If you begin with 14.0 mL of TiCl4 (d=1.73mL), what mass of water, in grams, is required for complete reaction
The reaction of 8.10g of Carbon with excess O2 yields 12.80g of CO2. What is the percent yield of this reaction?
Consider a sample of calcium carbonate in the form of a cube measuring 2.305in on each edge. If the sample has a density of 2.73cm^3 , how many oxygen atoms does it contain
A wastewater disposal well for carrying various wastes at different times is drilled into a formation of limestone (CaCO3), and the wastewater has time to come to complete equilibrium with the calci
For a solution having 1.00 X 10^-3 equivilants/L total alkalinity (contributions from HCO3-, CO3^2-, and OH-) at [H+] = 4.69 x 10^-11, what is the percentage contribution to alkalinity from CO3^2-
Calculate all the preceeding concentrations and the weight of biomass, {CH2O}, produced. Assume no input of atmospheric CO2.
Water with an alkalinity of 2.00 X 10^-3 equivalents/L has a pH of 7.00. Calculate [CO2], [HCO3-], [CO3^2-], and [OH-].
For each molecule, identify the central atom, the steric number on the central atom, the number of bonded electron pairs on the central atom, and the number of lone pairs on the central atom.