(Micrograms per litre)/(gram molecular weight of solute) = (micromoles per litre).
Gases normally have a density of a few grams per liter (i.e., per cubic decimeter), at most. Air, for example, has a density of about 1.2 grams per liter, at standard temperature and pressure. The standard SI unit for density would be kilogram per cubic meter (which actually happens to be equivalent to grams per liter!), but many people are still accustomed to specify the density per liter, not per cubic meter.
The numbers are equivalent. For example, 5 grams per 100 grams = 5%.
There are 1,000 milligrams per gram. 0.2 grams*(1000 milligrams/gram) = 200 milligrams
One gram equals 1,000 milligrams.
The question is meaningless. No such thing as a cubic gram.
To convert grams per cubic centimeter (g/cm^3) to milligrams per liter (mg/L), you need to multiply by 1000. This is because there are 1000 milligrams in a gram and 1000 cubic centimeters in a liter.
1 liter of water has a mass of 1000 grams since there are 1000 cubic centimeters in a liter.
Since the density of water is 1 g/cm^3, you can directly convert grams to cubic centimeters for water. Simply, 1 gram of water is equal to 1 cubic centimeter of water.
To convert milligrams per liter to grams per liter, divide by 1000. For example, 1000 mg/L is equal to 1 g/L.
To convert grams to milligrams, you multiply the number of grams by 1000 because there are 1000 milligrams in a gram. For example, to convert 3 grams to milligrams, you would calculate 3 grams x 1000 = 3000 milligrams.
(Micrograms per litre)/(gram molecular weight of solute) = (micromoles per litre).
Gases normally have a density of a few grams per liter (i.e., per cubic decimeter), at most. Air, for example, has a density of about 1.2 grams per liter, at standard temperature and pressure. The standard SI unit for density would be kilogram per cubic meter (which actually happens to be equivalent to grams per liter!), but many people are still accustomed to specify the density per liter, not per cubic meter.
You cannot directly convert meters to grams because meters and grams are units of different measurements - length and mass, respectively. The conversion will depend on the substance's density or material type.
One liter of water weighs one kilogram. One kilogram is 1,000 grams. One liter is 1,000 cubic centimeters (a.k.a. "cc" or "ml") So: One cc weighs one gram. Isn't the metric system wonderful?
The number of grams in 1 liter of a substance depends on the substance's density. To convert between liters and grams, you need to know the substance's density. To calculate, you multiply the density by the volume in liters to get the mass in grams.
It depends on the type of gasoline, and other factors such as temperature and pressure, but gasoline has an approximate density of 737.22 kilogram/cubic meter. 737.22 kilogram/cubic meter = 0.73722 kilogram/liter = 737.22 gram/liter 42.4 liters * 0.73722 kilograms/liter = 31.258 kilograms or since you wanted grams, not kilograms... 42.4 liters * 737.22 gram/liter = 31258 grams(http://forum.onlineconversion.com/showthread.php?t=1114)