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Calculate the pH at the following points during the titration of 100.0 mL of 0.20 M acetic acid (Ka for acetic acid = 1.8 x 10-5) with 0.10M sodium hydroxide
1. after addition of 100.0mL of base
2. after addition of 200.0mL of base
3. after addition of 250.0 mL of base
Ethylene glycol,C2H4(OH)2, is a colorless liquid used as automobile antifreeze. If the density at 20 degree Celcius of a 4.028m solution of ethylene glycol in water is 1.0241g/mL, What is the molarity of the solution
At body temperature 37 C, Ka for aspirin equals 3 x10^ - 5.If two aspirin tablets, each having a mass of 325 mg, are dissolved in a full stomach whose volume is 1 L and whose pH is 2, what percent of the aspirin is in the form of neutral molecules
Consider the following element combinations. Classify the bonds formed between each pair as ionic, polar covalent, or nonpolar covalent based solely on each element's position on the periodic table: P-P, Ca-O, Al-N, O-Br, S-Br, F-F, P-Cl, Cs-Cl
What are the other side products present in this biocatytic reaction? Name the principal enzymes taking part in this bioconversion. To which class of enzymes do they belong to?
Consider the following compounds and suppose that 0.5M solutions are prepared of each:Nal, NH4Br, KF, KCN, KC2H3O2, CsNO3, and KBr. Write the formulas of those that have solutions that are A) acidic B)basic and C) Neutral
If 2.45 g of X reacts with 6.55 g of M to produce 11.25 g of a compound with the formula M2X3, and the atomic mass of M is 42.0 amu, what is the atomic mass of X
what mass of sucrose should be combined with 537 of water to make a solution with an osmotic pressure of 8.55 at 275 ?
A reaction has a theoretical yield of 8.83 g of ammonia. the reaction gives off 10.24 L of ammonia measure at 52*C and 105.3kPa what was the percent yield of the reaction?
When scuba diving, it is important to come back to the surface of the water from deep dives slowly. If this does not happen, then the diver can get the ?bends?.
What is the wavelength in micrometers of a photon emitted from a Hydrogen electron relaxing from the
Calculate the potential of a galvanic cell with two platinum electrodes, the one immersed in a solution that is .0301 M in \(Fe^{3+}\) and .0760 M
What was his wavelength at his average speed, if he weighed 207 lbs at the time of the race?
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