Answer:
4.6g
Explanation:
We are given the following parameters:
Molecular weight of the compound = 74g/mol
Volume = 2500mL = 2.5L or 2.5dm³
Concentration = 0.025M
Unknown:
Mass of compound = ?
Solution:
To solve this problem, we need to find the number of moles from the given concentration and volume values.
Number of moles = concentration x volume
So;
Number of moles = 0.025 x 2.5 = 0.0625mol
Therefore, mass of compound;
Mass = number of moles x molar mass
Mass = 0.0625 x 74 = 4.6g
