How many atoms are in 0.64 moles of strontium
what is .64*Avagradro's number?
how many atoms are in 0.64 moles of strontium
To find the number of atoms in a given number of moles, you can use Avogadro's number, which is 6.022 x 10^23 atoms per mole.
Step 1: Convert the moles to atoms using Avogadro's number:
0.64 moles x 6.022 x 10^23 atoms/mole = 3.85328 x 10^23 atoms
Step 2: Round off the answer to an appropriate number of significant figures:
Since the number given in the question has 2 significant figures, we should round off our answer to 2 significant figures.
Therefore, the number of atoms in 0.64 moles of strontium is approximately 3.9 x 10^23 atoms.
To determine the number of atoms in a given amount of substance, you need to use Avogadro's number and the formula:
Number of atoms = Number of moles of substance × Avogadro's number
Avogadro's number is approximately 6.022 × 10^23 atoms/mol.
In this case, you want to find the number of atoms in 0.64 moles of strontium.
Number of atoms = 0.64 moles × 6.022 × 10^23 atoms/mol
By multiplying these numbers together, you can calculate the number of atoms:
Number of atoms = 0.64 × 6.022 × 10^23
Now, let's calculate it:
Number of atoms = 3.85408 × 10^23
So, there are approximately 3.85408 × 10^23 atoms in 0.64 moles of strontium.