direct isotope dilution analysis (DIDA), Chemistry

Assignment Help:
A solution contains an unknown amount of osmium at the µg/g level, or below. Chemically pure osmium (Os) may be separated from the solution, but the chemical yields are variable and low. The determination is done by direct isotope dilution analysis (DIDA). The isotopic abundances of 186Os and 190Os are 1.58 and 26.4%, respectively. 7.80 x 10-9 g of isotopically pure, stable 186Os is added to the unknown solution and mixed thoroughly, and then a small amount of pure Os is extracted from the mixture. With a mass spectrometer, the 190Os/186Os mass ratio in the extracted sample is found to be 7.40. Calculate the amount of Os originally present in the unknown solution.

Related Discussions:- direct isotope dilution analysis (DIDA)

Explain kararch effect, In the addition of the hydrogen, halide to unsatura...

In the addition of the hydrogen, halide to unsaturated alkenes in the presence of peroxides the halide adds to the carbon atom correlated to more number of hydrogen atoms and hydro

The formula for ferric pyrophosphate, Chemical formula for calcium pyrophos...

Chemical formula for calcium pyrophosphate is ca 2, P 2 O 1.    The formula for ferric pyrophosphate will be: (1)  Fe 3 (P 2 O 1 ) 3

Electrochemistry, how to determine the ionic product of water?

how to determine the ionic product of water?

POLYMERS, SHORTNOTE ON CONDUCTING POLYMERS

SHORTNOTE ON CONDUCTING POLYMERS

Soaps and detergents, Soaps and detergents Sodium and pottasium salts of...

Soaps and detergents Sodium and pottasium salts of fatty acids such as palmitic acid, stearic acid, oleic acid etc are called soaps, while detergents are ammonium or sulphonate

Properties of detergents - oils and fats, Properties of Detergents - Oils a...

Properties of Detergents - Oils and Fats Detergents are superior cleansing agents due to following properties. (i) These can be employed both in soft and hard waters as the

What is aronatic compounds ?, Aromatic compounds are compounds having one o...

Aromatic compounds are compounds having one or more benzene rings in it . These compounds satisfies the huckel''s rule. Huckel''s rule:- Compounds contain 4n+2 pi electrons are ar

When are conditions right for harvesting a crop?, When are conditions right...

When are conditions right for harvesting a crop? When the crop is ready for harvest, will depend largely on weather conditions and the state of the market. When the deci

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd