The molar mass-of H2O is 18.02 gram /mol. How many moles are present in 3.33 x 1024 molecules of H2O?
Select one:
a. 9.97 moles H20
b. 99.7 moles H2O
c. 2.00 x 1048 moles H20
d. 5.53 moles H20

Answer

5.53moles

Explanation:

Given parameters

Number of molecules = 3.33 x 10²⁴

Unknown

Number of moles = ?

Solution

A mole of a substance contains the Avogadro's number of particles.

1 mole of a substance = 6.02 x 10²³

So, 3.33 x 10²⁴ molecules will contain;

3.33 x 10²⁴ / 6.02 x 10²³

= 5.53moles

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.