Questions from General Chemistry

Q: What volume of 0.01000 M AgNO3 is required to precipitate

What volume of 0.01000 M AgNO3 is required to precipitate all of the I- in 150 mL of a solution that contains 22.50 ppt KI?

Q: Exactly 750.0 mL of a solution that contains 500.

Exactly 750.0 mL of a solution that contains 500.0 ppm of Ba(NO3)2 is mixed with 200.0 mL of a solution that was 0.04100 M in Al2(SO4)3. a. What mass of solid BaSO4 is formed? b. What is the molar con...

Q: Describe at least three systematic errors that might occur while weighing a

Describe at least three systematic errors that might occur while weighing a solid on an analytical balance.

Q: Describe at least three ways in which a systematic error might occur

Describe at least three ways in which a systematic error might occur while using a pipet to transfer a known volume of liquid.

Q: What mass of solute in grams is contained in a.

What mass of solute in grams is contained in a. 450.0 mL of 0.0986 M H2O2? b. 26.4 mL of 9.36 3 1024 M benzoic acid (122.1 g/mol)? c. 2.50 L of a solution that contains 23.4 ppm SnCl2? d. 21.7 mL o...

Q: Describe how systematic method errors may be detected.

Describe how systematic method errors may be detected.

Q: What kind of systematic errors are detected by varying the sample size

What kind of systematic errors are detected by varying the sample size?

Q: A 0.005-g sample of a rock is to

A 0.005-g sample of a rock is to be analyzed, and iron is to be determined at the ppm level. Determine the type of analysis and type of constituent.

Q: A method of analysis yields masses of gold that are low by

A method of analysis yields masses of gold that are low by 0.4 mg. Calculate the percent relative error caused by this result if the mass of gold in the sample is a. 500 mg. b. 250 mg. c. 125 mg....

Q: The method described in Problem 3-8 is to be used

The method described in Problem 3-8 is to be used for the analysis of ores that assay about 1.2% gold. What minimum sample mass should be taken if the relative error resulting from a 0.4-mg loss is no...