Scientific Understanding

A special consideration for this lesson is that since the metric system was designed around the use of water as a standard for measurement a milliliter of water is the same as a gram of water. It is also the same as a liter of water equals a kilogram of water. THIS ONLY FOR WATER ON THE SURFACE OF THE EARTH!!!

1 mL = 1 g

or

1 L = 1 kg

Although you will not encounter this in your chemistry class, it is also good to keep in mind that this conversion for water only works at or near sea level on earth. You cannot use this conversion outside of earth’s surface.

This section also uses some material from the units prefixes and unit conversions sections. Please go back and review them if you are have trouble with this section.

**Examples**: Solve for the water conversion problems below. **VIDEO Mass to Volume Examples 1**.

If you have 95 mL of water how many grams of water is that?

Answer: 95g

How many liters of water are required to provide 62 kilograms of water?

Answer: 62 L

73 kilograms of water on the surface of the earth translates to how many milliliters?

Answer: 73,000 mL

**PRACTICE PROBLEMS**: Solve for the water conversion problems below.

If you have 0.23 mL of water how many grams of water is that?

Answer: 0.23g

How many liters of water are required to provide 39 kilograms of water?

Answer: 39 L

8.4 kilograms of water on the surface of the earth translates to how many milliliters?

Answer: 8400 mL

How many kilograms is 120000 mL of water?

Answer: 120 kg