60 gram of urea is dissolved in 250ml. Calculate the molarity
I assume that 250 mL is 250 mL of solution.
mols urea = grams/molar mass = ?
Then M = mols/L
To calculate the molarity of a solution, you need to know the amount of solute (in moles) and the volume of the solution (in liters).
First, we need to convert the mass of urea (in grams) to moles. The molar mass of urea (CH4N2O) is approximately 60.08 g/mol.
Number of moles of urea = mass of urea / molar mass of urea
= 60 g / 60.08 g/mol
≈ 0.9987 mol
Next, we need to convert the volume of the solution from milliliters to liters. Since 1 liter is equal to 1000 milliliters, we can divide the volume by 1000.
Volume of solution = 250 ml / 1000 ml/L
= 0.25 L
Now, we can calculate the molarity using the formula:
Molarity = moles of solute / volume of solution
Molarity = 0.9987 mol / 0.25 L
≈ 3.9948 M
Therefore, the molarity of the solution is approximately 3.9948 M.