How to calculate grams per liter?

To calculate grams per liter (g/L), you need to know the mass of the substance in grams and the volume of the solution in liters. Here are the steps:

1. Weigh the substance using an analytical balance and record the mass in grams (g).

2. Transfer the substance to a volumetric flask or graduated cylinder.

3. Add a solvent, such as water, to the flask or cylinder until the total volume reaches the desired mark.

4. Mix the solution thoroughly to ensure that the substance is completely dissolved.

5. Calculate the concentration in grams per liter using the formula:

```

Concentration (g/L) = Mass of substance (g) / Volume of solution (L)

```

For example, if you have 10 grams of sodium chloride (NaCl) dissolved in 1 liter of water, the concentration of the solution would be:

```

Concentration = 10 g / 1 L = 10 g/L

```

Therefore, the concentration of the solution is 10 grams of sodium chloride per liter of water.