Question

what is the definition for avogadros number?
number of grams per one mole of a substance
6.02 x 10^23 particles per one mole of a substance
whole number ratio that is a multiple of a chemical formula
simplest, whole numbe ratio of a chemical formula

Explanation:

To determine the correct definition of Avogadro’s number, we analyze each option:

• The green option describes molar mass (grams per mole), not Avogadro’s number.
• The blue option: Avogadro’s number is defined as \(6.02\times10^{23}\) particles (atoms, molecules, ions, etc.) per one mole of a substance. This matches the definition.
• The orange option refers to a molecular formula’s relation to an empirical formula (a multiple ratio), not Avogadro’s number.
• The cyan option describes an empirical formula (simplest whole - number ratio of a chemical formula), not Avogadro’s number.

Answer:

B. \(6.02\times10^{23}\) particles per one mole of a substance (assuming the blue option is labeled B; adjust the label as per the original question's numbering if different)