## Perform the calculations and determine the absolute and percent relative uncertainty. Express each answer with the correct number of signifi

Question

Perform the calculations and determine the absolute and percent relative uncertainty. Express each answer with the correct number of significant figures.

a. [9.8(±0.3)−2.31(±0.01)]8.5(±0.6)= __________

b. absolute uncertainty: __________

c. absolute uncertainty: _________

d. percent relative uncertainty: ___________

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Chemistry
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2021-07-16T06:31:43+00:00
2021-07-16T06:31:43+00:00 1 Answers
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## Answers ( )

Answer:Explanation:Given the equation:

The absolute uncertainty in a measurement is the term used to describe the degree of inaccuracy.

The first step is to determine the algebraic value on the numerator.

Algebraic value = 9.8 – 231

= 7.49

The absolute uncertainty =

absolute uncertainty =

=

= 0.300167

∴

[9.8(±0.3) – 2.31(±0.01)] = 7.49(±0.300167)

The division process now is:

Relative uncertainty =

Relative uncertainty = ±4.007565% , ±7.058824%

≅ 8%The algebraic value =

= 0.881176

≅ 0.88The percentage of the relative uncertainty =

By cross multiplying:

Finally: