Question

What will be the mass of co2 that contains same number of oxygen atoms as in 18g of h20?

Answer 1

Hey mate here's your answer

Answer:

6.022×10^23 oxygen atoms.

Explanation:

First, it's important to know that the chemical formula for water is H2O. This means that one molecule of water is made of two hydrogen atoms and one oxygen atom.

Then, we need to find how many moles of water there are in

18 g. (We need to do this, because knowing the number of moles of water will help us convert from grams to number of atoms!)

To find how many moles of water there are in 18 g, we have to divide 18 gby the number of grams in one mole of water, also known as the molar mass of water:

(See the Attachment)