How many moles are in one gallon of water?

Answer 1

A lot! Here is the calculation:

The molar mass of water is 18 grams per mole. So in 18 grams of water, there are 6.02 x 1023 molecules.

One gallon of water is equal to 3.7854118 liters. If we assume that the water is at 4 °C (to keep things simple), the density of water is exactly 1 gram per milliliter, or 1 kilogram per liter. So 1 gallon of water at 4 °C weighs exactly 3.7854118 kilograms, or 3785.41118 grams.

If one mole of water weighs 18 grams, then there are 210.30 moles of water in a gallon. Since one mole of water is made up of 6.02 x 1023 molecules, in one gallon of water there are 1.266 x 1026 molecules.

That is: 126600000000000000000000000 molecules!

If we multiply that by the number of atoms in a single water molecule -- 3 atoms -- then we get:

379800000000000000000000000 atoms!

Answer 2

A lot! Here is the calculation:

The molar mass of water is 18 grams per mole. So in 18 grams of water, there are 6.02 x 1023 molecules.

One gallon of water is equal to 3.7854118 liters. If we assume that the water is at 4 °C (to keep things simple), the density of water is exactly 1 gram per milliliter, or 1 kilogram per liter. So 1 gallon of water at 4 °C weighs exactly 3.7854118 kilograms, or 3785.41118 grams.

If one mole of water weighs 18 grams, then there are 210.30 moles of water in a gallon. Since one mole of water is made up of 6.02 x 1023 molecules, in one gallon of water there are 1.266 x 1026 molecules.

That is: 126600000000000000000000000 molecules!

If you want to know how many atoms are in a gallon of water, just multiply that by three, since there are 3 atoms in H2O. So there are are 3.798 x 1026 atoms in a gallon of water

That is: 379800000000000000000000000 atoms!

Answer 3

1 gallon water * (3.79 liters/1 gallon) * (1000 grams/1 liter) = 3790 grams water

3790 grams water / (18.015 grams/mole) = 210. moles water

210. moles water * 6.02*1023 molecules/mole = 1270*1023 water molecules

each water molecule contains 2 hydrogen atoms and 1 oxygen atom, so:

• 1270*1023 water molecules * (2 atoms H/water molecule) = 2530*1023 atoms H
• 1270*1023 water molecules * (1 atom O/water molecule) = 1270*1023 atoms O

2530*1023 atoms H + 1270*1023 atoms O = 3800*1023 total atoms = 3.80*1026 total atoms

Answer 4

There are 1.265x10^26 molecues in a gallon of water.

1 gallon = 3.785 L H2O = 3785 g H2O

3785 g H20 * (1 mol / 18.02 g) (6.02x10^23 molecules/mol) = 1.265x10^26 molecules

Answer 5

There is just one type of molecule in water, molecules of H2O.

Answer 6

0.264172052(galons per liter) x 55.56(moles per liter)

14.67739920912, or in scientific notation, 1.468x10

Answer 7

( 4.50 x10 to the 25 power) is the most common anwser to this question

Answer 8

Depends on what the gas is.