Exercise L39 part b

Moderators: Chem_Mod, Chem_Admin

ZoeHahn1J
Posts: 63
Joined: Sat Jul 22, 2017 3:01 am
Been upvoted: 1 time

Exercise L39 part b

Postby ZoeHahn1J » Wed Oct 04, 2017 7:12 pm

Hi! In part b of problem L39, it asks for the name of the oxide with the empirical formula (spoiler alert) SnO2. I'm a little unclear on how to find the proper name for it (tin (IV) oxide in the solutions manual, due to the +4 charge on Sn). Why, however, wouldn't tin dioxide be appropriate? Thank you so much!

Thuy-Anh Bui 1I
Posts: 56
Joined: Sat Jul 22, 2017 3:00 am
Been upvoted: 2 times

Re: Exercise L39 part b

Postby Thuy-Anh Bui 1I » Wed Oct 04, 2017 8:05 pm

SnO2 is an ionic compound so you would use the procedure to write the name for ionic compounds (metal + nonmetal), which is:
1. Determine the charge on the cation (Sn = +4) and anion (O = -2).
2. Name the cation. If it is a transition metal, put its charge in parentheses. For this example, you would write "tin (IV)."
3. Then add the name of the anion ("oxide").

The name "tin dioxide" is not correct because that is using the naming system for molecular compounds (nonmetal + nonmetal), like CO2 (carbon dioxide).

Hope this helps!

ZoeHahn1J
Posts: 63
Joined: Sat Jul 22, 2017 3:01 am
Been upvoted: 1 time

Re: Exercise L39 part b

Postby ZoeHahn1J » Thu Oct 05, 2017 10:09 am

Ohhh I see! Thank you!


Return to “SI Units, Unit Conversions”

Who is online

Users browsing this forum: No registered users and 1 guest