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Q: How do you calculate the mass of water?

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Divide the mass of the ethanol by the sum of the mass of the ethanol + that of the water and multiply by 100. Mass ethanol/(Mass ethanol + mass H2O) (x100)

mass = volume X density

You add the number of protons and neutrons in an atom, and the total is the atomic mass.

Gold is a meta element. Atomic mass of it is 197.

There is only one way. Mass divided by volume. You can find mass by weighing the object and find volume by seeing how much it displaces water. However, if you have a regular platonic solid, you can use the volume formula for that shape.in other ways if you are given the densiti of water as 1000g/cm2 the mass and the volume are the same

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dump it in water and calculate the mass of the water spilled out

Probably just one of the ways is to calculate the mass of an empty container. Then, pour the water into the container and calculate the mass. Then, subtract the empty container's mass from the mass when you put the water in. There you have it. The mass of the water. TADA! Multiply the volume of the water by its density. Water has a density of 1 kg per liter.

77.1293% of its mass is water

The mass of water, as opposed to its density, depends on the quantity of water whose mass is being calculated.

Change in mass -------------------- Change of water That is change in mass divided by change of water

Immerse it in water and measure the displacement. Then calculate the mass of the amount of water displaced.

- Weight the water with the container.- Empty the container and weight.- Calculate the difference for the water mass..

If you put water into Copper Sulphate, the mass of the water won't change. If you are looking for percent composition, divide the mass of the water by the mass of the entire solution.

Calculate the amount of water in a gallon of water. The mass of the steam will be exactly the same as the mass of the water. No mass should be lost.

1. Calculate the amount of water lost.Mass Hydrate - Mass Anhydratehydrate = with water (before heating)anhydrate = without water (after heating)2. Calculate the percent of water.Divide the amount of water lost by the mass of the hydrate; multiply by 100%.Mass water lost- Mass hydrate x 100%

You know that the density of pure water is 1g/cm3. If you also know the volume of the water, you can multiply the two and get the mass.

You don't. You weigh it to get the mass. The displaced water is to find the volume, after which you can calculate the density.

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