The average mass of a solid copper penny is 2.63 g . What is the mass of one mole of pennies?
How would I solve this?
The mass of one mole of copper is not dependent on how much each penny weighs.
The RMM of copper = 63.546 g/mol
So what is the mass of one mole of pennies?
I think the idea here, although a little far fetched, is a mole of pennies is 6.02 x 10^23 in number and that times 2.63 g/penny = ?? grams. Something like 1.58 x 10^24 grams.
To solve this problem, you'll need to use the concept of molar mass.
1. Start by finding the molar mass of copper (Cu). The atomic mass of copper is approximately 63.55 g/mol.
2. Next, determine the number of moles in one penny. Divide the mass of one penny (2.63 g) by the molar mass of copper (63.55 g/mol).
Number of moles in one penny = (mass of one penny) / (molar mass of Cu)
So, number of moles in one penny = 2.63 g / 63.55 g/mol
3. Calculate the mass of one mole of pennies by multiplying the number of moles in one penny by the mass of one penny.
Mass of one mole of pennies = (mass of one penny) × (number of moles in one penny)
Therefore, mass of one mole of pennies = 2.63 g × (2.63 g / 63.55 g/mol)
4. Calculate the result to find the mass of one mole of pennies.
To solve this problem, you need to first find the molar mass of copper (Cu) using the periodic table. Then, you can calculate the mass of one mole of pennies by multiplying the molar mass of copper by the number of pennies in a mole.
1. Find the molar mass of copper (Cu):
- The atomic mass of copper is 63.55 g/mol, which you can find on the periodic table.
2. Determine the number of pennies in a mole:
- One mole of any substance contains 6.022 × 10^23 particles, which is known as Avogadro's constant.
- Since one penny represents one particle, one mole of pennies also contains 6.022 × 10^23 pennies.
3. Calculate the mass of one mole of pennies:
- Multiply the molar mass of copper by the number of pennies in a mole.
Mass of one mole of pennies = Molar mass of copper × Number of pennies in a mole
Let's calculate it using the given information:
Molar mass of copper (Cu) = 63.55 g/mol
Number of pennies in a mole = 6.022 × 10^23 pennies
Mass of one mole of pennies = 63.55 g/mol × 6.022 × 10^23 pennies
Simply perform the multiplication to find the answer.