number of moles in 5.64kg of barium
To calculate the number of moles in 5.64kg of barium, we need to divide the mass by the molar mass of barium.
The molar mass of Barium (Ba) is 137.33 g/mol.
First, we need to convert the mass from kg to g:
5.64 kg = 5640 g
Next, we divide the mass by the molar mass:
5640 g / 137.33 g/mol = 41.072 mol
Therefore, there are 41.072 moles in 5.64 kg of barium.
To find the number of moles in a given mass of a substance, you need to divide the mass by the molar mass of that substance.
1. Find the molar mass of barium (Ba) from the periodic table. The molar mass of barium is approximately 137.33 g/mol.
2. Convert the mass of barium from kg to g. There are 1000g in 1kg, so 5.64kg = 5640g.
3. Calculate the number of moles using the formula: moles = mass / molar mass.
moles = 5640g / 137.33 g/mol
4. Divide the mass by the molar mass to get the number of moles.
moles ≈ 41.11 mol
Therefore, there are approximately 41.11 moles in 5.64kg of barium.