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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: kateopotato on February 22, 2010, 04:15:45 PM

Title: Names and formulas of molecular compounds question: what am I doing wrong?
Post by: kateopotato on February 22, 2010, 04:15:45 PM
 ???
Here's my problem and my answers, exactly how I entered them:

What is the name of the compound whose formula is N2O? Dinitrogen Monoxide
What is the formula for the compound diphosphorus pentabromide? P2Br5
What is the name of the compound whose formula is P2Br5? Diphosphorous Pentabromide
What si the formula for the compound silicon dioxide? SiO2

What am I doing wrong? My online homework site says I am incorrect! :(

Thanks!
Title: Re: Names and formulas of molecular compounds question: what am I doing wrong?
Post by: sjb on February 22, 2010, 05:14:55 PM
Such is the problem with online homework, things probably have to be just so. Do you have any examples of how to enter the correct answers? Or do you know any alternate names for things?
Title: Re: Names and formulas of molecular compounds question: what am I doing wrong?
Post by: skyjumper on February 22, 2010, 10:54:23 PM
The common way to refer to N2O is Nitrous Oxide. but I know in my early HS chem classes neglect to go into such nomenclature.
Title: Re: Names and formulas of molecular compounds question: what am I doing wrong?
Post by: AWK on February 23, 2010, 04:43:00 AM
diphosphorus pentabromide is a nonexisting compound

may be nitrogen(I) oxide
Title: Re: Names and formulas of molecular compounds question: what am I doing wrong?
Post by: Schrödinger on February 23, 2010, 05:22:18 AM
Quote from: AWK on February 23, 2010, 04:43:00 AM
diphosphorus pentabromide is a nonexisting compound

@kateopotato : I guess you were referring to PBr5 (Phosphorous pentabromide)?
Title: Re: Names and formulas of molecular compounds question: what am I doing wrong?
Post by: kateopotato on February 23, 2010, 07:56:04 AM
Nevermind guys, I spelled Phosphorus wrong! AHHH!!! I'm a loser... :P