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You decide to put your growing knowledge of chemistry to profit by making and selling boutique soaps that are ultra mild and have an almost neutral pH. What is the pH of your best liquid soap made from a fatty acid that has a pKa value of 2.0? The concentration of the active ingredient, a fatty acid salt, is 1.0 M.
Hydrochloric acid reacts with aluminum to form aluminum chloride and gseous hydrogen. What's the mass of aluminum required to produce 1.0kg of aluminum chloride if there is excess acid?
If a nonvolatile, yellow crystalline solid sample of 0.351 g is dissolved in benzene (C 6 H 6 ) of 15.8 g formed a solution. this solution freezes at the temperature of 4.77 degree celsius.
Why would it be more appropriate to put the elements La and Ac in the bottom two periods and put Lu and Lr in the transition metals? Why don't we see the use of any sublevels higher than the f sublevel?
the calorimeter itself absorbs a negligible amount of heat, calculate combustion eneergies (change of energies) for benzene in both kj/g and kj/mol.
If a solution containing 46.46 g of mercury(II) acetate is allowed to react completely with a solution containing 7.410 g of sodium sulfide, how many grams of solid precipitate will be formed?
Calculate the work done if a gas is compressed from 7.7 L to 1.3 L at constant temperature by a constant pressure of 2.6 atm, and give your answer in units of joules. (1 L · atm = 101.3 J) J In the above example, work is being done by what?
What is the percent ionization of cyanic acid (Ka = 2.0 x 10^-4) in a buffer of 0.50 M HCNO and 0.10 M NaCNO?
Calculate what the pH is at 0 mL added strong acid, the quarter-, half-, and three-quarter-equivalence points, the equivalence point, and when excess acid has been added.
sample of unknown HCL solution reacts completely with Na2CO3 to form 15.1g CO2, What was the concentration of the HCL solution?
A 14.0 g sample of X combines with a 26.2 g sample of Y to form the compound XY2. What is the mass of the reactants.
mercury barometer with an inner diameter of 10.00 mm? Recall that the area of a circle is A = ? r2 and that 1 N = 1 kg m/s2.
a car radiator coolant, loses 999J of heat. What was the initial temperature of the ethylene glycol if the final temp is 32.5 degrees C
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