In the <em>trial structure</em> (1st image below), every atom has an octet.
Valence electrons = 20
Valence electrons available = 4 + 2 +10 = 16
The trial structure has 4 electrons too many. The actual structure must have <em>two double bonds or one triple bond.</em>
The second image shows two possible Lewis structures.
Answer:
The substance has a density of 2.636 grams per mililiter.
Explanation:
We must remember that density (), measured in grams per mililiters, is the mass of the substance (
), measured in grams, divided by its volume (
), measured in mililiters. That is:
In addition, a kilogram equals 1000 grams and a liter equals 1000 mililiters. If we know that and
, then:
The substance has a density of 2.636 grams per mililiter.