Questions from General Chemistry

Q: A 0.150 M aqueous solution of the weak organic acid

A 0.150 M aqueous solution of the weak organic acid HA was prepared from the pure compound, and three 50.0-mL aliquots were transferred to 100.0-mL volumetric flasks. Solution 1 was diluted to 100.0 m...

Q: To determine the equilibrium constant for the reaction /

To determine the equilibrium constant for the reaction 25.0 mL of a 0.0100 M aqueous solution of I2 was extracted with 10.0 mL of CHCl3. After extraction, spectrophotometric measurements revealed tha...

Q: The total cation content of natural water is often determined by exchanging

The total cation content of natural water is often determined by exchanging the cations for hydrogen ions on a strong-acid ion-exchange resin. A 25.0-mL sample of a natural water was diluted to 100 mL...

Q: Describe the preparation of exactly 1.00 L of 0.

Describe the preparation of exactly 1.00 L of 0.1000 M HCl from primary-standard-grade NaCl using a cation-exchange resin.

Q: An aqueous solution containing MgCl2 and HCl was analyzed by first titrating

An aqueous solution containing MgCl2 and HCl was analyzed by first titrating a 25.00-mL aliquot to a bromocresol green end point with 17.53 mL of 0.02932 M NaOH. A 10.00-mL aliquot was then diluted to...

Q: An open tubular column used for gas chromatography had an inside diameter

An open tubular column used for gas chromatography had an inside diameter of 0.15 mm. A volumetric flow rate of 0.85 mL/min was used. Find the linear flow velocity in cm/s at the column outlet.

Q: A packed column in gas chromatography had an inside diameter of 5

A packed column in gas chromatography had an inside diameter of 5.0 mm. The measured volumetric flow rate at the column outlet was 48.0 mL/min. If the column porosity was 0.43, what was the linear flo...

Q: What types of interferences are encountered in ICPMS?

What types of interferences are encountered in ICPMS?

Q: The following data are for a liquid chromatographic column: /

The following data are for a liquid chromatographic column: A chromatogram of a mixture of species A, B, C, and D provided the following data: Calculate a) The number of plates from each peak. b)...

Q: From the data in Problem 29-24, calculate for A

From the data in Problem 29-24, calculate for A, B, C, and D a) The retention factor. b) The distribution constant. Data from 29.24: The following data are for a liquid chromatographic column: A c...