Pennies

What is the primary purpose of determining the average mass of pennies in this lab?

To find the central tendency of the penny masses for a specific mint year

Why is zeroing the balance with the weigh boat before weighing the pennies important?

To tare the weigh boat

What does a large standard deviation in your penny mass measurements indicate?

The measured masses of the pennies take on a broad range of values

What is the importance of observing the condition of each penny during the experiment?

e.^{Both b and C}

If a penny was especially corroded or dirty, how might that affect the mass measurement?

It could result in a higher measured mass than its actual value

What is the main purpose of entering your data into a Web-based data entry form?

To share the data with other students in the class so everybody can analyze trends across all years

How does the standard deviation relate to the average mass when analyzing a set of data points like a penny masses?

Standard deviation indicates how much the penny masses deviate from the average

Why is it important to wear gloves when handling pennies in a chemistry experiment?

To prevent the pennies from corroding due to oils and sweat on your hands

The analytical balance has doors on it because_____.

Air currents could influence the measured mass

Spilled on and around a balance required what action?

All of the above