Calculate the number of atoms in 3.227*10 ^10mol of potassium
To solve the problem, we can use Avogadro's number, which is 6.022 × 10²³. This number represents the number of particles (atoms, molecules, ions) in one mole of a substance.
First, we need to calculate the number of potassium atoms in one mole:
1 mol K = 6.022 × 10²³ atoms K
Then, we can use this conversion factor to calculate the number of potassium atoms in 3.227 × 10¹⁰ mol of potassium:
3.227 × 10¹⁰ mol K × 6.022 × 10²³ atoms K/mol K = 1.942 × 10³⁴ atoms K
Therefore, there are 1.942 × 10³⁴ atoms of potassium in 3.227 × 10¹⁰ mol of potassium.
Find mass of. H atomms. Present in 32g Methane. CH4.
To find the mass of H atoms in 32 g of methane, we first need to calculate the number of moles of methane present in 32 g. The molar mass of methane (CH4) is 16 g/mol (12 g/mol for carbon and 4 g/mol for hydrogen).
Number of moles of CH4 = 32 g / 16 g/mol = 2 mol
Next, we can use the balanced chemical equation for the combustion of methane to determine the ratio of moles of H atoms to moles of CH4:
CH4 + 2O2 → CO2 + 2H2O
For every mole of methane, there are 2 moles of H2O produced, which contains 4 moles of H atoms.
So, for 2 moles of CH4, there are 4 moles of H2O and 8 moles of H atoms.
Finally, we can calculate the mass of 8 moles of H atoms:
Mass of 8 moles of H atoms = 8 mol x 1.008 g/mol (molar mass of H) = 8.064 g
Therefore, there are 8.064 g of H atoms present in 32 g of methane.
To calculate the number of atoms in a given amount of substance, you can use Avogadro's number, which is approximately 6.022 × 10^23 particles per mole.
Step 1: Determine the number of moles of potassium.
Given: 3.227 × 10^10 mol
Step 2: Use Avogadro's number to convert moles to atoms.
The conversion factor is 1 mol = 6.022 × 10^23 atoms.
Number of atoms = (Number of moles) × (Avogadro's number)
Number of atoms = 3.227 × 10^10 mol × 6.022 × 10^23 atoms/mol
Now, multiply the two values to obtain the number of atoms:
Number of atoms ≈ 1.946 × 10^34 atoms
Therefore, there are approximately 1.946 × 10^34 atoms in 3.227 × 10^10 mol of potassium.
To calculate the number of atoms in a given amount of substance, you need to use Avogadro's number, which is approximately 6.022 × 10^23 atoms/mol.
Given that you have 3.227 × 10^10 mol of potassium, you can calculate the number of atoms using the following steps:
Step 1: Determine Avogadro's number:
Avogadro's number = 6.022 × 10^23 atoms/mol
Step 2: Multiply the number of moles by Avogadro's number:
Number of atoms = (3.227 × 10^10 mol) × (6.022 × 10^23 atoms/mol)
Step 3: Multiply the two numbers using the rules of scientific notation:
Number of atoms = (3.227 × 6.022) × (10^10 × 10^23) atoms
Step 4: Perform the multiplication and addition in the brackets:
Number of atoms ≈ 19.472 × 10^(10 + 23) atoms
Step 5: Simplify the exponent:
Number of atoms ≈ 19.472 × 10^33 atoms
Step 6: Adjust the coefficient to a proper decimal number:
Number of atoms ≈ 1.9472 × 10^34 atoms
Therefore, there are approximately 1.9472 × 10^34 atoms in 3.227 × 10^10 mol of potassium.