Calculating Moles & Atoms in an Element

Make sure to complete all your lab questions as composition books will be collected on Monday!

Calculating Moles and Atoms in an Element

Purpose: To determine the amount of moles and atoms in a sample of an element. 

Directions: With your partner pick three elements to measure.  On a scale measure the mass of the sample in grams.  Then calculate the number of moles and atoms by using your formula that you have been practicing.

1. Data:

(DO THIS THREE TIMES ONCE FOR EACH ELEMENT)

Name of sample: _____________

Mass: _____________

Number of moles: ____________

Number of atoms: ____________

Questions:

2. Which sample had the most amount of moles? Did this sample also have the most amount of mass of the three samples?

3. Which sample had the most amount of atoms? Did this sample also have the most amount of mass of the three samples?

4. Explain the relationship between the moles in an element and the amount of atoms in the element.