Ch.1 - Chemical Tools: Experimentation & Measurement
Chapter 1, Problem 50
An experimental procedure call for 250 mg of calcium car-bonate. The balance in the laboratory measures mass in grams and reads to four decimal places. Which reading on the bal-ance corresponds to 250 mg? (a) 0.0250 (b) 0.2500 (c) 0.0025
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