A chemistry student needs 65.0g heptane for an experiment. He has available 20.0g of a 38.1% w/w solution of heptane in chloroform. Calculate the mass of solution the student should use.

The question is incomplete, here is the complete question:

A chemistry student needs 65.0 g heptane for an experiment. He has available 20.0 g of a 38.1% w/w solution of heptane in chloroform.

Calculate the mass of solution the student should use. If there's not enough solution, press the "No solution" button.  Round your answer to 3 significant digits.

The solution is not enough, "No Solution"

Explanation:

We are given:

Mass of solution needed = 20.0 g

38.1 % (w/w) solution of heptane

This means that 38.1 grams of heptane is present in 100 grams of solution

Applying unitary method:

If 38.1 grams of heptane is present in 100 g of solution

So, 65.0 grams of heptane will be present in = of solution

As, the given amount of solution is less than the required solution. So, there is not enough solution

Hence, the solution is not enough, "No Solution"

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.