Questions from General Chemistry

Q: Calculate (a) pI if the cell in Problem 19

Calculate (a) pI if the cell in Problem 19-17(a) has a potential of -196 mV. (b) pCl if the cell in Problem 19-17(b) has a potential of -0.137 V. (c) pPO4 if the cell in Problem 19-17(c) has a potenti...

Q: Lead was determined in a brass sample by atomic absorption and the

Lead was determined in a brass sample by atomic absorption and the method of standard additions. The original sample was dissolved and diluted to 50.0 mL. This solution was introduced into an AA spect...

Q: Describe the basic differences among atomic emission, atomic absorption, and

Describe the basic differences among atomic emission, atomic absorption, and atomic fluorescence spectroscopy.

Q: Define (a) Atomization. (b) Pressure

Define (a) Atomization. (b) Pressure broadening. (c) Doppler broadening. (d) Aerosol. (e) Plasma. (f) Nebulization. (g) Hollow-cathode lamp. (h) Sputtering. (i) Additive interference. (j) Ionization...

Q: Why is atomic emission more sensitive to flame instability than atomic absorption

Why is atomic emission more sensitive to flame instability than atomic absorption?

Q: Briefly describe or define a) Liquid junction potential.

Briefly describe or define a) Liquid junction potential. b) Boundary potential. c) Asymmetry potential. d) Combination electrode

Q: The cell SCE||Ag2CrO4(sat'd), (x M

The cell SCE||Ag2CrO4(sat'd), (x M)|Ag is used for the determination of pCrO4. Calculate pCrO4 when the cell potential is 0.389 V.

Q: The cell SCE||H+(a = x)| glass

The cell SCE||H+(a = x)| glass electrode has a potential of 0.2106 V when the solution in the right-hand compartment is a buffer of pH 4.006. The following potentials are obtained when the buffer is r...

Q: A 0.4021-g sample of a purified organic acid

A 0.4021-g sample of a purified organic acid was dissolved in water and titrated potentiometrically. A plot of the data revealed a single end point after 18.62 mL of 0.1243 M NaOH had been introduced....

Q: Calculate the potential of a silver indicator electrode versus the standard calomel

Calculate the potential of a silver indicator electrode versus the standard calomel electrode after the addition of 5.00, 15.00, 25.00, 30.00, 35.00, 39.00, 39.50, 36.60, 39.70, 39.80, 39.90, 39.95, 3...