A flask contains 0.260 mol of liquid bromine, Br2. Determine the number of bromine molecules present in the flask.
Express your answer numerically in molecules.
Each mole has avagradro's number of molecules.
What is .260*Avagradro's number ?
To determine the number of bromine (Br2) molecules present in the flask, we can use Avogadro's number, which is approximately 6.022 x 10^23 molecules per mole.
Given that there are 0.260 moles of bromine (Br2) in the flask, we can calculate the number of bromine molecules as follows:
Number of bromine molecules = Number of moles x Avogadro's number
Number of bromine molecules = 0.260 mol x 6.022 x 10^23 molecules/mol
Calculating this expression:
Number of bromine molecules = 1.56532 x 10^23 molecules
Therefore, there are approximately 1.56532 x 10^23 bromine molecules present in the flask.
To determine the number of bromine molecules present in the flask, we need to use Avogadro's number, which states that 1 mole of any substance contains 6.022 × 10^23 representative particles (atoms, molecules, or ions).
First, we need to find the number of molecules in 1 mole of Br2. Since Br2 is a diatomic molecule (composed of two bromine atoms), there are 2 bromine atoms in 1 molecule of Br2.
So, to find the number of bromine molecules in 0.260 mol of Br2, we can use the following calculation:
Number of bromine molecules = (Number of moles of Br2) × (Number of bromine molecules in 1 mole of Br2)
Number of bromine molecules = 0.260 mol × (2 bromine atoms/molecule) × (6.022 × 10^23 bromine molecules/mol)
Calculating the above expression, we get:
Number of bromine molecules = 0.260 × 2 × 6.022 × 10^23
Now, we can multiply these values together:
Number of bromine molecules = 3.6124 × 10^23
Therefore, there are approximately 3.6124 × 10^23 bromine molecules present in the flask.