Significant Figures chemistry
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Questions and Answers

Which dispenser is considered precise but not accurate?

Dispenser #1

Which dispenser shows improved accuracy but worse precision?

Dispenser #2

Which dispenser is both accurate and precise in dispensing cough syrup?

Dispenser #3

How would you describe the accuracy of dispenser #1?

<p>Not accurate</p> Signup and view all the answers

How would you describe the precision of dispenser #2?

<p>Worse precision</p> Signup and view all the answers

Which dispenser is precise but not accurate in dispensing cough syrup?

<p>Dispenser #1</p> Signup and view all the answers

In terms of accuracy, which dispenser is considered to be working well in dispensing cough syrup?

<p>Dispenser #3</p> Signup and view all the answers

Which dispenser shows worse precision but improved accuracy when dispensing cough syrup?

<p>Dispenser #2</p> Signup and view all the answers

Considering the data, which dispenser delivers volumes closest to the target value of 296 mL?

<p>Dispenser #2</p> Signup and view all the answers

Which statement is true regarding the precision of dispenser #3?

<p>All volumes are within 0.2 mL of each other.</p> Signup and view all the answers

If the target volume for the cough syrup is 300 mL instead of 296 mL, which dispenser shows the best accuracy based on the given data?

<p>Dispenser #3</p> Signup and view all the answers

Which dispenser's volumes are consistent with each other, showing good precision?

<p>Dispenser #3</p> Signup and view all the answers

Which dispenser has volumes that are more than 3 mL away from the target value of 296 mL?

<p>Dispenser #1</p> Signup and view all the answers

Which type of error is associated with dispenser #1's measurements?

<p>Systematic error</p> Signup and view all the answers

Which dispenser demonstrates the best precision in delivering cough syrup?

<p>Dispenser #3</p> Signup and view all the answers

What could be a possible reason for dispenser #2's varying volumes?

<p>Temperature fluctuations</p> Signup and view all the answers

What term best describes the consistency of volumes delivered by dispenser #1?

<p>Precise</p> Signup and view all the answers

Which dispenser shows the most improvement in precision compared to the other two dispensers?

<p>Dispenser #2</p> Signup and view all the answers

In terms of accuracy, which dispenser is deemed to be working well?

<p>Dispenser #3</p> Signup and view all the answers

Which type of error is least likely to be associated with dispenser #3's measurements?

<p>Systematic error</p> Signup and view all the answers

What impact do random errors have on the precision of dispenser #2?

<p>Decrease precision</p> Signup and view all the answers

Which dispenser has the best balance between accuracy and precision?

<p>Dispenser #3</p> Signup and view all the answers

What kind of improvement is needed for dispenser #1 to be considered accurate?

<p>Reduction of instrument error</p> Signup and view all the answers

Dispenser #1 is accurate but not precise in dispensing cough syrup.

<p>False</p> Signup and view all the answers

Dispenser #2 shows better precision compared to dispenser #1.

<p>False</p> Signup and view all the answers

Dispenser #3 delivers volumes that are both accurate and precise.

<p>True</p> Signup and view all the answers

All volumes delivered by dispenser #1 are within a few tenths of a milliliter from the target value of 296 mL.

<p>False</p> Signup and view all the answers

Dispenser #2 has volumes consistent with each other, showing good precision.

<p>False</p> Signup and view all the answers

If the target volume for the cough syrup is changed to 300 mL, dispenser #3 will still be considered precise.

<p>True</p> Signup and view all the answers

Dispenser #1's volumes are more than 5 mL away from the target value of 296 mL.

<p>False</p> Signup and view all the answers

Dispenser #2's accuracy improves compared to dispenser #3.

<p>False</p> Signup and view all the answers

Dispenser #3 has volumes differing from each other by more than 1 mL.

<p>False</p> Signup and view all the answers

Dispenser #2's volumes are close to the target value, with each volume differing by less than 3 mL from 296 mL.

<p>True</p> Signup and view all the answers

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