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: In a chemical reaction 2 mol of substance A react to produce exactly 3 mol...

: In a chemical reaction 2 mol of substance A react to produce exactly 3 mol of substance B. 2A --> 3B How many molecules of substance B are produced when 27.1g of substance A reacts? The molar mass of substance A is 20.2 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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