Question

learning target
i can explain the law of conservation of mass and apply it to chemical reactions
1a. match the following terms with their correct definitions (2 points)
molar mass
mole ratio
avogadros number
:: an expression of the relationship between the substances in a chemical reaction. found by looking at the coefficients in a balanced chemical equation
:: the mass (in grams) of 1 mole of substance. for elements, this number can be found on the periodic table.
:: the amount of particles/molecules that make up one mole of substance. equal to 6.022 x 10²⁴

Explanation:

• Molar Mass is defined as the mass (in grams) of 1 mole of a substance, with elemental values from the periodic table.
• Mole Ratio is the relationship between substances in a reaction, derived from coefficients of a balanced equation.
• Avogadro’s Number is the number of particles in 1 mole, equal to \(6.022 \times 10^{23}\).

Answer:

• Molar Mass: The mass (in grams) of 1 mole of substance. For elements, this number can be found on the periodic table.
• Mole Ratio: An expression of the relationship between the substances in a chemical reaction. Found by looking at the coefficients in a balanced chemical equation.
• Avogadro’s Number: The amount of particles/molecules that make up one mole of substance. Equal to \(6.022 \times 10^{23}\).