Question

question 2 (multiple choice worth 4 points) (01.03 mc) emma used an equal arm balance to weigh a 1.134 g sample of calcium carbonate. which of these measurements made by emma is the most accurate? 1.1 g 1.2 g 1.3 g 1.4 g

Explanation:

Step1: Calculate the absolute - value of the difference for each option

For 1.1 g: $|1.134 - 1.1|=0.034$; for 1.2 g: $|1.134 - 1.2| = 0.066$; for 1.3 g: $|1.134 - 1.3|=0.166$; for 1.4 g: $|1.134 - 1.4| = 0.266$.

Step2: Compare the differences

The smaller the absolute - value of the difference between the measured value and the actual value (1.134 g), the more accurate the measurement. Among 0.034, 0.066, 0.166 and 0.266, 0.034 is the smallest.

Answer:

1.1 g