pepe is tasked with carefully measuring precisely one mole of aluminum. How should pepe go about completing this assignment?
Look up the atomic mass of Al and weight exactly that amount of Al on an analytical balance.
To carefully measure precisely one mole of aluminum, Pepe can follow these steps:
Step 1: Determine the molar mass of aluminum.
- The molar mass of aluminum is 26.98 g/mol. This value represents the mass of one mole of aluminum atoms.
Step 2: Calculate the mass of one mole of aluminum.
- Multiply the molar mass of aluminum by 1 mole: 26.98 g/mol * 1 mol = 26.98 grams.
- Therefore, Pepe needs to measure precisely 26.98 grams of aluminum.
Step 3: Prepare a balance or scale for measuring the aluminum.
- Ensure that the balance or scale is calibrated and accurate to get an accurate measurement.
Step 4: Weigh the aluminum using the prepared balance.
- Place a container (such as a weighing boat) on the balance and tare it to set it to zero.
- Carefully add the aluminum until the balance reads precisely 26.98 grams.
Step 5: Record the mass of the aluminum.
- Write down or note the measured mass of the aluminum to keep track of the precise measurement.
By following these steps, Pepe can carefully measure precisely one mole of aluminum.
To measure precisely one mole of aluminum, Pepe needs to follow a few steps:
Step 1: Determine the molar mass of aluminum.
- The molar mass of aluminum (Al) is 26.98 grams/mole. This value can be found on the periodic table.
Step 2: Calculate the mass of one mole of aluminum.
- Since the molar mass of aluminum is 26.98 grams/mole, Pepe needs to measure precisely 26.98 grams of aluminum.
Step 3: Use an accurate balance or scale to measure the mass.
- Pepe should use an analytical balance or scale that can measure with high precision, ideally to at least two decimal places.
Step 4: Handle the aluminum carefully.
- Pepe should wear gloves to avoid contamination and ensure accurate measurements. It is also important to avoid moisture and keep the aluminum sample free from any impurities.
Step 5: Weigh the aluminum.
- Place the container (such as a weighing boat) on the balance or scale.
- Tare the balance to set it to zero with the container.
- Carefully transfer the aluminum sample to the weighing container.
- Record the mass displayed on the balance or scale.
By following these steps, Pepe will accurately measure precisely one mole of aluminum.