Sunday
April 20, 2014

Homework Help: CHEMISTRY PLEASE HELP

Posted by ScienceGeek on Wednesday, June 5, 2013 at 1:16am.

Cobalt was used as an internal standard to analyze a sample of titanium with atomic absorption spectroscopy. A mixture was prepared by combining a 4.00 mL Ti solution of unknown concentration with 3.00 mL of a 11.7 micrograms/mL solution of Co. The atomic absorbances were measured as 0.128 and 0.218 for Ti and Co, respectively.

As a reference, a standard mixture containing 1.58 micrograms Co/mL and 2.31 micrograms Ti/mL was prepared and measured to have a signal-to-signal ratio of 2.65 Ti: 1.00 Co.

Determine the concentration (moles/L) of titanium in the original unknown solution.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - In a gas chromatography experiment, an internal standard was used. ...
BCIT - A series of standard solutions of benzene in toluene solvent is to be ...
Chemistry - When 0.312g of glucose was burned in a bomb calorimeter (heat ...
Chemistry - Cobalt was used as an internal standard to analyze a sample of ...
CHEMISTRY - Cobalt was used as an internal standard to analyze a sample of ...
Chemistry - A student reacted 5.33 grams of cobalt with oxygen gas and obtained ...
Chemistry - A 43.0 g sample of hydrated cobalt (II) sulfite is heated to drive ...
chemistry - Naturally occurring cobalt consists of only one isotope Co59 whose ...
chemistry - cobalt chloride forms pink crystals. when they are heated water is ...
program planning - Please respond to the following questions either by writing ...

Search
Members