a. mass A to moles
In a chemical reaction, exactly 2 mol of substance A react to produce exactly 3 mol of substance B.
2 A → 3B
How many molecules of substance B are produced when 26.8 g of substance A reacts? The molar mass of substance A is 16.7 g/mol.
Step 1: Convert the mass of A to moles.
Step 2: Convert the number of moles of A to the number of moles of B.
Step 3: Convert the number of moles of B to molecules of B.
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