Which of the following has the greatest mass? A)6.0 × 10²³ atoms of O B)3.0 × 10²³ molecules of O₂ C)2.0 × 10²³ molecules of O₃ D)All have the same mass.

Question

Quizplus · Accepted Answer

Each option describes a quantity of 6.022 × 10^23 entities (atoms or molecules), which is Avogadro's number. This represents one mole of each substance, and since a mole of any substance contains the same number of entities, the mass difference comes down to the molar mass of the substances. However, the question does not specify the substances correctly due to formatting issues, leading to an interpretation challenge. Assuming the intent was to compare equal numbers of entities (moles) of different substances, the answer would depend on the molar mass of each substance. Without specific substances correctly identified, one might interpret that the question implies a comparison of equal amounts (in moles) of different substances, which does not inherently determine which has the greatest mass without knowing the substances. Therefore, the most accurate answer given the provided information and potential interpretation errors is that all options are presented as having the same number of entities, leading to an ambiguous comparison of mass without further context.

Which of the Following Has the Greatest Mass