Answer:
approximately 1.234 x 10^24 molecules in 2.052 moles of H2O.
Step-by-step explanation:
To determine the number of molecules in a given amount of a substance, you can use Avogadro's number, which is 6.022 x 10^23 molecules per mole.
In this case, you have 2.052 moles of H2O.
To find the number of molecules, you can multiply the number of moles by Avogadro's number:
2.052 moles H2O x (6.022 x 10^23 molecules/mol) = 1.234 x 10^24 molecules of H2O
Therefore, there are approximately 1.234 x 10^24 molecules in 2.052 moles of H2O.