Procedure: Fill in the blank with the correct term/terms to complete the sentences
Write your answer on an intermediate pad paper.
1 The
is a fundamental unit of measurement of substances and can be
defined as the number equal to the number of carbon atoms in
of
carbon
2. Techniques for counting atoms very precisely have been used to determine this
number to be
and this number is called
3. The
of any substance is the mass in of 1 mol of a substance.
4.
is the calculation of the amount (mass, mole, particles) of one
substance in the chemical equation from another.

1.} The MOLE (mol) is a unit of measurement that is the amount of a pure substance containing the same number of chemical units (atoms, molecules etc.) as there are atoms in exactly 12 grams of carbon-12 (i.e., 6.022 X 1023).

2.} Experimental measurements have determined the number of entities composing 1 mole of substance to be 6.022 × 1023, a quantity called Avogadro's number.

3.} The molar mass of a substance is the mass in grams of one mole of that substance. This mass is given by the atomic weight of the chemical unit that makes up that substance in atomic mass units (amu). For example, silver has an atomic weight of 107.8682 amu, so one mole of silver has a mass of 107.8682 grams.

4.} Stoichiometry is the field of chemistry that is concerned with the relative quantities of reactants and products in chemical reactions. For any balanced chemical reaction, whole numbers (coefficients) are used to show the quantities (generally in moles ) of both the reactants and products.

Explanation:

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