Question

Question #a32d5

Answer 1

There are `1.73 × 10^24 color(white)(l)"N"_2"O"_5color(white)(l) "molecules"`.

Explanation:

1 mol of a compound like `"N"_2"O"_5` contains `6.022 × 10^23` molecules.

∴ There are

`2.88 color(red)(cancel(color(black)("mol N"_2"O"_5))) × (6.022 × 10^23color(white)(l) "N"_2"O"_5color(white)(l) "molecules")/(1 color(red)(cancel(color(black)("mol N"_2"O"_5))))`

`= 1.73 × 10^24 color(white)(l)"N"_2"O"_5color(white)(l) "molecules"`