Question

if your hot pack requires 3.0g of a solid to obtain the correct temperature change, instead of the correct amount (1.4g) calculate the percent error

Answer 1

114.3%

Explanation:

Given parameters:

True amount of solid = 1.4g

Measured amount  = 3.0g

Unknown:

Percentage error = ?

Solution:

The inaccuracy in the reading is termed uncertainty.

This is the error.

 Error  = true  value - measured value.

   The values of errors are absolute.

Percentage error = $\frac{|true value - measured value|}{true value} x 100$

Percentage error = $\frac{1.4 - 3}{1.4}$ x 100 = 114.3%

This is large amount of error

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