What is the percent abundance of each isotope
Silver has two stable isotopes with masses of 106.90509 amu and 108.9047 amu. The average molar mass of silver is 107.868 amu. What is the percent abundance of each isotope?
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Calculate the pH for each of the following points in the titration of 50.0 mL of a 1.5 M H3PO3(aq) with 1.5 M KOH(aq)
The vapor pressure of nitrogen at several different temperatures is shown below.
Hemoglobin has a positive charge of +5 and a radius of 3.55 nm in water. How far will the protein travel in one hour in an electrophoresis gel at 25C when a field of 1.0 V cm^-1 is applied if the viscosity of the gel is 0.891 cP (1cP = 0.01 g cm^-
Which of the following best describes the forces that generate geothermal power?
If a temperature increase from 12.0 to 22.0 doubles the rate constant for a reaction, what is the value of the activation barrier for the reaction?
A 3.12 g sample of solute is dissolved in 35.0 g of water. The freezing point of this solution is found to be -1.23°C. What is the molar mass of the solute? For water, Kf = 1.86 degkg/mol.
What is the total number of atoms in one unit (molecule or formula unit) of K2CrO4? What is the total number of atoms in a mole of K2CrO4
After completing the calculations below, sketch the pH curve for the titration of 25.0 mL of 0.150 M solution of a weak base, B (Kb = 6.8 x 10^-5), with 0.150 M HI. Indicate the pH
Sulfurous acid, H2SO3, is a weak diprotic acid (pKa,1=1.89 and pKa,2=7.21 at 25oC). What is the pH of 0.121 mol/L H2SO3(aq) at 25oC
Can anyone explain the intermediate compound formation theory in detail
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