Question

A student adds 88.4 g of sucrose(molar mass=342.3 g/mol to 1.50 L of 20 degrees C water she stirs until all the crystals dissolve what is the solutions molarity

Answer 1

To calculate the molarity of the solution, we need to first calculate the number of moles of sucrose in the solution.

Number of moles of sucrose = mass of sucrose / molar mass of sucrose
Number of moles of sucrose = 88.4 g / 342.3 g/mol
Number of moles of sucrose = 0.258 moles

Next, we need to calculate the volume of the solution in liters.

Volume of solution = 1.50 L

Finally, we can calculate the molarity of the solution using the formula:

Molarity = number of moles / volume of solution

Molarity = 0.258 moles / 1.50 L
Molarity = 0.172 M

Therefore, the molarity of the solution is 0.172 M.