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How would your test results be affected if you left fingerprints on the sides of the cuvet in line with the spectrometer light path?
A hydrochloric acid solution is standardized using 0.500g of sodium carbonate, Na2CO3. Find the molarity of the acid if 29.50mL are required to reach a phenolphthalein endpoint.
1. Find three examples of monopolistic competition (four firm concentration ratios of 20 to 40 percent) at www.census.gov/epcd/www/concentration.html. Which characteristic of monopolistic competition described in the text are true for each example?
For a mixture of two gases, consisting of 1.00 mol of C2H6 and 1.00 mol of Kr, at a total pressure is 4.50 atm, what is the partial pressure of C2H6?
What precautions must one take in using internal standard method for analysis of samples in complex matrices
Problem- Compute delta G for the following gaseous reaction at 298.15 K by first computing delta S and delta H for the reaction. Verify your results by computing delta G for the same reaction using delta Gf values.
What wold you prodict for the relative reactivity of 4-trifluoromehylbenzaldehyde in this aldol condensation reaction. Explain. (Compare to benzaldehyde, 4-methylbenzaldehyde, 4-methoxybenzaldehyde, 4-chlorobenzaldehyde, and 2-nitrobenzaldehyde.
Why is the 1, 4-isomer (1, 4-di-t-butyl-2, 5-dimethoxbenzene) the major product in the alkylation of dimethoxybenzene. Would you expect either of the following compounds to be formed as side products
Calculate the molarity of a solution made by adding 22.1 mL of concentrated ammonia (28.0 % by mass, density 0.880 g/mL) to some water in a volumetric flask, then adding water to the mark to make exactly 500 mL of solution.
what is the average density of the sun in units of grams per cubic centimeter? The volume of a sphere is (4/3)?^3.
The freezing point depression constant, Kf, for water is 1.86?C/m. Suppose that 5.00 g of mercury(I) nitrate was dissolved in 100.0 g of water.
What is the theoretical yield of this friedal-crafts alkylation to make 1,4-di-t-butyl-2,5-dimethoxybenzene
If the cylinder is full of air at 72 C and 0.980 atm, how many moles of O2 are present. (The mole fraction of O2 in dry air is 0.2095.)
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