Question

Formic acid, HCOOH, is a major component in ant bites. Calculate the mass, in grams of 3.14 x 1023

molecules of formic acid.
​

Answer 1

23.97 grams.

Step-by-step explanation:

First we convert 3.14 x 10²³ molecules into moles, using Avogadro's number:

• 3.14x10²³ molecules ÷ 6.023x10²³ molecules/mol = 0.521 moles

Then we convert 0.521 moles of HCOOH into grams, using the molar mass of formic acid:

• 0.521 mol * 46 g/mol = 23.97 g

The answer is 23.97 grams.