18.01 g of water (H₂O) and 36.46 g of HCl contain the same number of molecules.

Question

Quizplus · Accepted Answer

This statement is true because the number of molecules in a substance is determined by the number of particles (atoms, ions, or molecules) present, not by the mass of the substance. Therefore, if two substances have the same number of molecules, they can have different masses. In this case, the amount of water (18.01 g) and the amount of HCl (36.46 g) are different, but they contain the same number of molecules. This is because the molar mass of water (18.015 g/mol) and the molar mass of HCl (36.46 g/mol) are different, but they contain the same number of molecules per mole. Therefore, the statement given in the question is true.

1801 G of Water (H2O) and 36

1801 G of Water (H₂O) and 36