Friday
April 18, 2014

Homework Help: Chem.

Posted by Anonymous on Tuesday, October 2, 2012 at 4:01am.

In 1928, 1.0 g of Re was isolated from 660 kg of the ore molybenite. The percent by mass of this element in the molybenite was:

1.5 x 10 ^-4 %

How to set this up, given that 600 kg equals 660,000 g. And Avogadro's number 6.022x10^23?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chem - When crude caffeine is isolated from tea, why does it often have a green ...
Chem 1C - What is the electron configuration of an isolated Fe atom (no ligands ...
chem - Describe the melting point you expect to observe if the isolated product ...
Chemistry - What is the importance of maintaining an isolated system in ...
English - The accident occurred on a/an ______ road A. intact B. enlisted C. ...
history - the 1928 election brought in_____________.
chem - for a combination reaction, it was calculated that 7.59g of A would ...
History - Were there any common themes between the elctions of 1916, 1920, and ...
gcse history - why was the Peace Settlement changed in the years 1920-1928? ...
history - The presidential election of 1928 pitted Al Smith of New York against.

Search
Members