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The predominant isotope of gold ^197, 79 Au, has an experimentally determined exact mass of 196.967 amu. What is the total nuclear binding energy of gold in electrovolts per atom?
Calculate the pH of the 0.20 M NH/0.26 M NHCl buffer. What is the pH after the addition of 20.0 mL of 0.050 M NaOH to 90.0 mL of the buffer solution
Take N3 as the independent variable and solve for N2 in terms of N3. Then solve for N1 in terms of N2 and N3. b. Taking note that there cannot be a negative population, what are the possible values of N3 ?
Caproic acid C5H11COOH is found in small amounts in coconut and palm oils and is used in making artificial flavors. A saturated solution of the acid contains 11 g/L and has a pH of 2.94. Calculate Ka for the acid.
protein used as standards on an SDS- polyacrylamide gel are 0.80 and 0.41, respectively. What is the apparent mass of a protein having a mobility of 0.62 on this gel?
Arrange the following aqueous solutions in order of increasing freezing points (lowest to highest temperature): 0.10 m glucose, 0.10 m BaCl2, 0.20 m NaCl, and 0.20 m Na2SO4.
The accepted toxic dose of mercury is 300ug/day there is 180ug of mercury per cubic meter of air. ingestion of 20,000L air per day is she at risk for mercury poisoning?
What mass of glucose can be produced from a photosynthesis reaction 6CO2(g) + 6H2O -> C6H12O6(aq) + 6O2(g) that occurs using 18.4 mol CO2? Answer in units of g.
calculate the molarity of the solution. how many grams of kno3 are needed to make 450 ml of a solution that is to
Write out the equilibrium that results when a salt solution of the conjugate base of this acid is dissolved in water. What is the equilibrium constant expression for this situation
Determine the volume of a 0.550 M KMnO4 solution required to completely react with 2.70 g of Zn.
the international unit for weighing diamonds carat 1 carat 200 mg exactly. determine the volume of a 0.76 carat
According to the VSEPR theory, if there are three electron domains in the valence shell of an atom, they will be arranged in a(n) A. Octahedral Geometry B. Linear Geometry C. Tetrahedral Geometry D. Trigonal Planar Geometry E. Trigonal Bipyramidal..
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