Question

calculate the number of moles is the following (1) 10g carbon dioxide (2) 20g water​

Answer 1

Answer:

1- Mass of CO2 = 10g

Molar mass of CO2 = 44g/mol

Moles of CO2 =10g/44g/mol = 0.23mol

Number of molecules of CO2= moles X Avogadro's number.

=0.23mol x 6.02 x 10^23

Explanation:

2- Molar mass of Water =H

2

​

O=2+16=18 g/mol

So, 1 mole of water weighs = 18 g

which implies, 18g of water = 1 mole

Therefore, 20g of water =20/18=1.11 mole

Answer 2

Answer:

10 g is correct answer according to question