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Explain what is meant by phase imaging AFM and what is an example of an experiment where specific properties can be quantified in an AFM experiment.
Calculate the activation energy of a reaction if the rate constant is 0.75 s 1at25 Celsius and 11.5 s 1at 75 celsius. (the universal gas constant is 8.314J/mol K)
What is the pKb for the acetylsalicylate (C9H7O4-) ion in a 0.10 M solution of sodium acetylsalicylate (NaC9H7O4). A. 3.52 B. 10.48 C. 3.0 x 10-4 D. 3.0 x 10-11 E. 8.26
If 1.87 {rm g} of acetic acid(rm CH_3CO_2H) reacts with 2.31 {rm g} of isopentyl alcohol(rm C_5H_{12}O) to give 2.96 {rm g} of isopentyl acetate(rm C_7H_{14}O_2), what is the percent yield of the reaction?
The rate would decrease because the bromide ion is a weaker base than the iodide ion. C) The potential change cannot be predicted.
For equilibrium calculations involving metal complexes with EDTA, it is convenient to calculate the fraction of EDTA that is in the completely unprotonated form, Y4- (see the figure). This fraction is designated ?Y4-. Calculate ?Y4- at the followi..
Without using equations can you explain how heat capacity and entropy are related
Some AgCl(s) has been placed in a beaker of water. After some time, the solubility of Ag+ and Cl- was measured to be 2.5 x 10-5 M. Determine whether the system has reached equilibrium.
A 1.649-g sample of a solid, weak, monoprotic acid is used to make 100.0 mL of solution. 55.0 mL of this solution was titrated with 0.09012-M NaOH. The pH after the addition of 26.06 mL of base was 7.54, and the equivalence point was reached with ..
a graduated cylinder contains 155 ml of water. a 15.0 g piece of iron density 7.86 and a 20.0 g piece of lead are
in a concentration calculation if we are given the solute measurement in grams and the volume of solution in liters
Explain how this system appears static but in fact is a dynamic equlibrium, Na+(aq) + Cl-(aq) --> NaCl(s), that is in constant motion though the mass of solid is constant.
How many photons per second are striking the photocell? B. How much energy is mJ/s (millijoules per second) is the photocell absorbing?
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