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Answer :
Option b. To determine the percent change in mass from Experiment 1 to Experiment 2, we use the percent change formula. The calculation shows a 6.27% decrease in mass. Therefore, the answer is b. 6.3% decrease.
To find the percent change in mass from Experiment 1 to Experiment 2, we'll use the percent change formula:
[tex]\[ \text{Percent Change} = \frac{\text{New Value} - \text{Old Value}}{\text{Old Value}} \times 100\% \][/tex]
Given:
Mass in Experiment 1 (Old Value): [tex]\( 38.3 \) grams[/tex]
Mass in Experiment 2 (New Value): [tex]\( 35.9 \) grams[/tex]
Using the formula:
[tex]\[ \text{Percent Change} = \frac{35.9 - 38.3}{38.3} \times 100\% \][/tex]
[tex]\[ \text{Percent Change} = \frac{-2.4}{38.3} \times 100\% \][/tex]
[tex]\[ \text{Percent Change} \approx -0.0627 \times 100\% \][/tex]
[tex]\[ \text{Percent Change} \approx -6.27\% \][/tex]
Rounding to the nearest tenth, we have [tex]\( -6.3\% \).[/tex]
Therefore, the percent change of the mass from Experiment 1 to Experiment 2 is approximately a [tex]\( 6.3\% \)[/tex] decrease. So, the correct answer is: b.[tex]\( 6.3\% \) decrease[/tex]
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