Question

Crucible

10.00 g

Crucible and hydrate before heating
15.32 g

Crucible and hydrate after first heating
15.10 g

Crucible and hydrate after second heating
14.65 g


Cindy and Blake performed and experiment in which they were evaporating water from a compound. Their teacher told them that the accepted value for the mass of water in the compound was 0.70 grams. Use the data from the table to calculate the percent error of their experiment.

A)
4.29%


B)
6.43%


C)
31.43%


D)
56.42%

Answer 1

A) 4.29%

Percentage error is 4.29%

Step-by-step explanation:

From the experiment results;

The mass of water = 15.32 g - 14.65 g

= 0.67 g

Therefore;

The percentage error in the experiment will be given by;

= (0.7-0.67)/0.7 × 100

= 0.03/0.7 × 100

= 4.29%