150.0 g of NaCl (mm: 58.5 g/mol) is dissolved in 250.0 ml of water calculate the molarity

10.26 M

Explanation:

The definition of molarity is moles per liter. Since we are given the mass, we first convert it into moles. Then, we divide by the amount of liters. A common way to solve the problem is through dimensional analysis. In it, you multiply all the numbers on top and divide by the numbers in the bottom.

150g     |        mol        |                          |    1000 mL

   = 10.26 M

            |     58.5 g       |        250 mL     |       1 L

This is the same as 150 * 1000 / (58.5 * 250) = 10.26M.

You can double check that you get the correct units by crossing out the same units on top and bottom. At the end, you should be left with a mol on top and L in the bottom. mol/L = molarity (M).

There are several key factors to consider when selecting workout clothing. Comfort is a big factor. You don't want to choose clothing that is uncomfortable. The way the clothing fits is also important. Workout clothing tends to be smaller so it's important to choose clothing that allows for a wide range of motion. Wicking, which is the ability of fabric to help remove sweat from the body, is better than plain cotton. Layering is another factor to consider because you want to have clothing that can be easily layered in the colder months. You should also consider whether or not the clothing is technologically advanced and whether or not it is activity appropriate.

Explanation: