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Find out the electron -group arrangement, molecular shape, and ideal angles for each of the following (a)SO42- (b) NO2- (c) PH3
Calculate the pH of the buffer prepared by mixing 35.0mL of 0.15M HC2H3O2 with a 25.0mL of 0.10M NaC2H3O2. K(a) for HC2H3O2 = 1.8 x 10^-5
a suppose that 10.0 mol c2h6g is confined to 4.860 dm3nbspat 27degc. predict the pressure exerted by the ethane from a
During photosynthesis chlorophyll a absorbs light of 440 nm and emits light of 670 nm.
Based on the cation/anion radius ratio, what coordination number is expected for Zinc Sulfide
State the structure of the principle product from the reaction of 1-bromopropane with sodium ethoxide in ethanol
Calculate the wavelength of the line associated with the transition from n=7 to n=1 for the hydrogen atom. What is the change in energy for the atom when this transition occurs. What is change in E when the electron moves from the n=1 to the n=7 l..
The resultant mixture is then evaporated in a kettle to produce a jam contain- ing 67 wt % soluble solids. For a feed of 1000 kg crushed fruit, calculate the kg mix- ture from the mixer, kg water evaporated, and kg jam produced
What is the pH at the stoichiometric point? What is the pH when 105% of the base required to reach the stoichiometric point has been added?
A solution is prepared by dissolving 13.4 g ammonium sulfate in enough water to make 133.0 mL of stock solution. A 11.90 mL sample of this stock solution is added to 52.50 mL of water. Calculate the concentration of ammonium ions and sulfate ions ..
1.3 grams of the non-electrolyte C2 H6 O is dissolved in water and the freezing point of the solution is found to be -0.80C. (a) What is the molar mass of C2 H6 O?
Separation of a standard solution containing 207 mg of pentanol and 233 mg of 2,3-dimethyl-2-butanol in 10.0 mL of solution led to a pentanol:2,3-dimethyl-2-butanol relative peak area ratio of 0.920:1.00. Calculate the response factor, F, for 2,3-..
Although the viscosity varies over a factor of more than two in the series from hexane to nonane, the surface tension at at 25 degrees Celsius increases by only about 20% in the same series. How do you account for this
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