Wednesday
October 1, 2014

Homework Help: chemistry university

Posted by angela on Monday, April 15, 2013 at 4:45am.

A 179 mL solution of a copper complex with a molecular weight of 491.9 g mol-1 was made. The absorbance of the solution at 638 nm wavelength was 0.376 using a 1 cm cuvette. It is known that this copper complex has a molar absorptivity (extinction coefficient) of 324.4 M-1 cm-1 at this wavelength.What was the mass of the copper complex dissolved in the solution in mg? Report your answer to 3 significant figures.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

College Chemistry Lab - The absorbance of a 6.3x10^-5M solution of an iron ...
General Chemistry. - The absorbance of a chlorophyll a standard solution in ...
Chemistry - The absorbance of a chlorophyll a standard solution in ethanol (...
Chemistry - The absorbance of a chlorophyll a standard solution in ethanol (...
chem - A student based the analysis of Cu(II) in a sample on the formation of ...
College Chemistry Lab - Suppose that a 2.50x10^-6M solution of red dye No. 2 had...
Chemistry - The molecular weight of glucose is 180.2 and the molecular weight of...
Chemistry - A solution is made by dissolving 0.100 mol of NaCl in 5.35 mol of ...
Analytical chem - Cu+ reacts with neocuproine to form the coloured complex (...
College Chemistry Lab - The absorbance of a 9.25x10^-8M solution of a fabric dye...

Search
Members