Question #03bbc
1 Answer
Explanation:
A substance's density tells you the mass of exactly
In your case, the density of sodium chloride is said to be equal to
You can write this as a ratio of mass to volume
"2.16 g"/"1 cm"^3->2.16 g1 cm3→ the density of sodium chloride
Now, you know that your sample has a volume of
To do that, set up the equation as
(color(blue)(?)color(white)(.)"g")/"4.00 cm"^3 = "2.16 g"/"1 cm"^3?.g4.00 cm3=2.16 g1 cm3
Rearrange and solve to find
color(blue)(?) = (4.00 color(red)(cancel(color(black)("cm"^3))))/(1color(red)(cancel(color(black)("cm"^3)))) * "2.16 g" = color(darkgreen)(ul(color(black)("8.64 g")))
The answer is rounded to three sig figs.