Question

How many molecules are in 4 moles of H₂O?

OA. 2.408 x 1023
OB. 6.02 x 1024
OC. 2.408 x 1024
OD. 7.224 x 1024

Answer 1

The number of molecules in 4 moles of H2O is 2.408 x 10^24.

Step-by-step explanation:

The number of molecules in a given amount of substance can be calculated using Avogadro's number. Avogadro's number is defined as the number of atoms or molecules in one mole of a substance, which is approximately 6.02 x 1023. Since H2O is a compound consisting of three atoms (two hydrogen and one oxygen), we multiply Avogadro's number by the number of moles of H2O to get the number of molecules.

In this case, we have 4 moles of H2O, so the number of molecules would be 2.408 x 1024 molecules.

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