Chemistry Questions and Answers October 30, 2019

Determine the Rydberg constant from the data. Since for n l = 2

Equation I Equation 2 which is of the form y mx b That is, Equation 2 is of the form of a straight line, hence the Rydberg constant IS rhe negative of the slope. Plot y IX vs. x lni on the graph paper provided, then determine the slope m R . Be sure to label the axes of the graph, As a check, compare this value of with the yintercept, which

The irreversible gas phase non elementary reaction A+2B ? C is to be carried out isothermally in a constant-pressure batch reactor. The feed is at a temperature of 227? o C, a pressure of 1013 kPa, and its composition is 33.3% A and 66.7% B. Laboratory data taken under identical conditions are as follows (note that at X = 0, -r A =0.00001): (a) ?

You work in a research lab with a chemist who asks you to make 500.0 mL of a formic acid/sodium formate buffer solution with pH = 4.10. Formic acid is HCOOH(aq); sodium formate is NaHCOO(s) and is soluble in water. The total concentration of formic acid + formate ion in the buffer is to be 0.120 M. Ka(HCOOH) = 1.77 104 (pKa = 3.75). In the

Nonpolar solutes dissolve more readily in nonpolar solvents than in polar solvents. Describe the interactions occurring between the solute and the solvent. A) The induced dipole of the solute molecule attracts the induced dipole in the solvent molecule. B) The induced dipole of the solute molecule creates a permanent dipole in the solvent