Question

My question:

A student is making a solution of sugar in water. If the student uses 0.42 moles of
sugar and enough water to make 170.58 milliliters of solution, what is the molarity of
the student's sugar solution? Please round the answer to the nearest 0.01 and include
units properly abbreviated, but NOT substance!

Answer 1

Molarity = 2.46 M (rounded to the nearest 0.01)

Explanation:

Molarity is defined as the number of moles of solute per liter of solution. To calculate the molarity of the sugar solution, we need to first convert the volume of the solution from milliliters to liters:

170.58 milliliters = 0.17058 liters

Next, we can use the definition of molarity to calculate the concentration:

Molarity = moles of solute / liters of solution

Molarity = 0.42 moles / 0.17058 liters

Molarity = 2.4627 moles/liter

Rounding to the nearest 0.01 and abbreviating the unit as "M" for molarity, we get:

Molarity = 2.46 M (rounded to the nearest 0.01)

Hope this helps, sorry if it doesn't. If you need more help, ask me! :]