find molar concentration of the solution.
.128 g of benzophenone and fill in a beaker with ethanol to the 50.00mL line
i came up with 3.5 x 10^-5
(0.128)(1/182.217)(.049872)
To find the molar concentration of a solution, you need to know the amount of solute (in moles) and the volume of the solution (in liters).
In this case, you have 0.128 g of benzophenone and the solution is filled to the 50.00 mL line with ethanol.
To find the amount of benzophenone in moles, you can use the molar mass of benzophenone. The molar mass of benzophenone is 182.217 g/mol.
So, the number of moles of benzophenone can be calculated as follows:
moles = mass / molar mass
moles = 0.128 g / 182.217 g/mol
moles = 0.0007029 mol
Next, you need to convert the volume of the solution to liters.
Volume = 50.00 mL = 50.00 / 1000 L = 0.05000 L
Finally, to find the molar concentration, you divide the number of moles by the volume of the solution:
molar concentration = moles / volume
molar concentration = 0.0007029 mol / 0.05000 L
molar concentration = 0.01406 mol/L
Therefore, the molar concentration of the solution is approximately 0.01406 mol/L or 1.41 x 10^-2 mol/L.