In each of the three cases, which measured value (mass or volume) limits the precision of the calculated density? Note that the absolute uncertainty in volume cannot be compared directly to that in the mass because the units differ (mL and g), so relative uncertainties must be considered. For volume, relative uncertainty by the rules of significant figures is ±0.01 mL / 20.10 mL = ± 0.0005, a unit-less decimal fraction. Give the relative uncertainty for each mass based on your previous answers to #s 1 & 2. Previous Answers: Balance A: 15.746 g Balance B: 15.75 g Balance C: 15.7 g What is the approximate uncertainty, or implied precision (±) of each measurement? (revise if incorrect) Balance A: ± 0.001 Balance B: ± 0.01 Balance C: ± 0.1
In each of the three cases, which measured value (mass or volume) limits the precision of the calculated density? Note that the absolute uncertainty in volume cannot be compared directly to that in the mass because the units differ (mL and g), so relative uncertainties must be considered. For volume, relative uncertainty by the rules of significant figures is ±0.01 mL / 20.10 mL = ± 0.0005, a unit-less decimal fraction. Give the relative uncertainty for each mass based on your previous answers to #s 1 & 2.
Previous Answers:
Balance A: 15.746 g
Balance B: 15.75 g
Balance C: 15.7 g
What is the approximate uncertainty, or implied precision (±) of each measurement? (revise if incorrect)
Balance A: ± 0.001
Balance B: ± 0.01
Balance C: ± 0.1
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
