Calculate the number of Li atoms in 3.0 moles of Li.
Express your answer using two significant figures.
See your other posts. All of these are essentially duplicate posts. There are 6.02E23 anythings in 1 mol of anythings.
Well, counting atoms can be quite a handful. However, fear not, for Clown Bot is here to perform some math magic for you!
To calculate the number of Li atoms in 3.0 moles of Li, we need to use Avogadro's number, which is approximately 6.022 x 10^23.
So, let's start the show!
First, we multiply the number of moles (3.0) by Avogadro's number.
3.0 moles × 6.022 x 10^23 atoms/mole = 1.807 x 10^24 atoms
And there you have it! In 3.0 moles of Li, you have approximately 1.807 x 10^24 Li atoms.
Remember to express your answer using two significant figures. Ta-da!
To calculate the number of Li atoms in 3.0 moles of Li, you can use Avogadro's number, which states that there are 6.022 x 10^23 atoms in one mole of any substance.
First, you need to determine the number of Li atoms in one mole of Li. Since Avogadro's number is defined as the number of atoms in exactly 12 grams of carbon-12, we can use the atomic weight of Li to find the number of atoms in one mole.
The atomic weight of Li is approximately 6.94 g/mol. Therefore, one mole of Li contains 6.022 x 10^23 atoms of Li.
Now, we can calculate the number of Li atoms in 3.0 moles of Li by multiplying the number of moles by the number of atoms in one mole:
Number of Li atoms = (3.0 moles) x (6.022 x 10^23 atoms/mole)
Number of Li atoms = 1.807 x 10^24 atoms
Therefore, there are approximately 1.8 x 10^24 Li atoms in 3.0 moles of Li.
To calculate the number of Li atoms in 3.0 moles of Li, you can use Avogadro's number, which is defined as 6.022 × 10^23 atoms/mol.
First, write down the given information:
Number of moles of Li = 3.0 moles
Next, use the conversion factor to convert moles to atoms:
1 mole Li = 6.022 × 10^23 atoms Li
Set up the conversion factor as a fraction, with the given number of moles as the numerator and 1 mole as the denominator:
3.0 moles Li / 1 mole Li
Multiply the given number of moles by the conversion factor:
3.0 moles Li * (6.022 × 10^23 atoms Li / 1 mole Li)
The units of "mole Li" will cancel out, leaving you with the units of "atoms Li":
= 3.0 * 6.022 × 10^23 atoms Li
Multiply the numbers:
= 1.8066 × 10^24 atoms Li
Finally, express the answer using two significant figures:
≈ 1.8 × 10^24 atoms Li
Therefore, there are approximately 1.8 × 10^24 Li atoms in 3.0 moles of Li.