Problem Answer

Formula: XCl4 Composition: 59.5% X.
According to the composition data and formula, the atomic mass of X is 209 amu.


Hide Pop-up Window

Use border to drag pop-up window.

CheMagic Logo

Go CheMagic Home

Calculate Stoichiometry Expression

Calculating Atomic Mass


Get Problem Answer  |  Get New Problem  |  Go Problem Menu


Problem


A chemical compound under study is know to contain only the elements X and the element chlorine. Quantitative analysis shows that the compound is 59.5 percent X by mass. The atomic mass of chlorine is known to be 35.5 amu. Assuming that the formula of this compound is XCl4, what is the atomic mass of element X?

"Will you walk into my parlour?" said the Spider to the Fly,
"'Tis the prettiest little parlour that ever you did spy..."
Mary Howitt-1834