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Determine the pH of each of the following solutions (Ka and Kb values are given in Appendix D in the textbook). Chemistry: The Central Science by Brown (11th edition)
Part A. 8.3x10^-3 M phenolPart B. 9.9x10^-2 M hydroxylamine
Determine the concentration of CO32- ions in a 0.18 M H2CO3 solution. Carbonic acid is a diprotic acid whose Ka1 = 4.3 x 10-7 and Ka2 = 5.6 x 10-11."
An interesting and unique feature of DNA is that it may be both replicated, thus ensuring genetic continuity, and transcribed, to enable expression of the genetic information.
What is the heat capacity of a bomb calorimeter if the combustion of 2.757 mmol of salicylic acid (C7H6O3(s), Hcomb = -3022 kJ/mol) increases the temperature of the calorimeter by 2.612°C
In a purity check for industrial diamonds, a 10.25 carat diamond is heated to 74.21 oC and immersed in 26.05 g of water in a constant pressure calorimeter.
octane has a density of 0.692g/ml at 20C. How many grams of O2 are required to burn 30.5 gal of C8H18
Calculate the energy released as heat when 26.83 g of Cu2O(s) undergo oxidation at constant pressure.
Assuming that your salt was a hydrated form of a sulfate mso4 nh2o calculate n. What values are quoted in handbooks for common hydrates
If 2.3g of sodium reacted with 1.8 of water, what would be the total mass of sodium hydroxide and hydrogen produced?
A compound contains 14.5 g of magnesium and 3.5 g of oxygen. What is the mass percent of oxygen in the compound?
Rank these elements according to first ionization energy (highest to lowest) : Ne, F, O, N, C, B, Be, Li. HINT: There is a general trend for ionization energy within a period of the periodic table
Which of the following correctly summarizes the exact relationships between the SN values of 2 to 6, the hybrid orbital names, and the predicted geometries for molecules that have hybridized central atoms?
Draw the electron-dot formula and predict the shape for each polyatomic ions: a) NO2^-; b) PO4^3-; c) ClO4^-; d) SF3^+.
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