u2/cm/g3
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I have no idea about the above answer, but it does not appear to answer the question.
The best way to find the mass of a given quantity of water is to use a balance to find the mass of an empty container. Then pour the water into the container and measure their combined mass. The difference between the two is the mass of the water.
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.
So, obviously, you cannot simply pour water onto a balance and weigh it. You'll need something to hold it in. Try a beaker.
Lets say that you want to find the mass of 100mL of water. Firstly, you'll need to weigh an empty beaker on a balance and record the mass. Next, pour 100mL of water into the beaker and weigh it again. Record the mass of beaker containing water.
So now you have the mass of the beaker and the mass of the beaker + water. You want to find the mass of just the water. Subtract the mass of the beaker from the mass of the beaker with water, and there you have it.
Example if you have 10.0ML of water then
The definition of a Kilogram (Kg) is 1 litre of pure water at room temperature.
Each cubic centimetre or millilitre (ml meaning 1000th of a litre) is therefore 1 gram.
The answer you need is 10 grams
Water has a density of 1 kilogram per liter. As such, it's quite simple to calculate the mass of water using the volume, translating liters directly to kilograms.
Water molecules are composed from hydrogen and oxygen. Their atomic masses are 1 and 16 respectively. The molecular mass of water is 2x1+16=18u.
The mass of water, as opposed to its density, depends on the quantity of water whose mass is being calculated.
Mass = Volume x Density
Shove a dick in it
The water is 38g and the salt 2g, so long as there is nothing else in the water
590 ml of water weigh 590 g. anything other then water will depend on density and the mass you can calculate from the weight
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)
You divide the 6.073 by 6.022x1023 (avagadros number) to get the moles, then multiply by molecular mass (18) to get mass in grams
Change in mass -------------------- Change of water That is change in mass divided by change of water
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.
Shove a dick in it
It's one gram by definition.
The water is 38g and the salt 2g, so long as there is nothing else in the water
590 ml of water weigh 590 g. anything other then water will depend on density and the mass you can calculate from the weight
If the object floats you can calculate its mass by the amount of water it displaces and its size. If it doesn't float i am not sure.
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)
You can weigh it; or you can calculate it based on the known density of water.
You divide the 6.073 by 6.022x1023 (avagadros number) to get the moles, then multiply by molecular mass (18) to get mass in grams
To calculate the atomic mass of an element, add up the mass of protons and nuetrons.
weight the metal ball first. then fill a graduated cylinder with water- it doesnt really matter how much, and put the metal ball in the water. measure how much the water level has increased by in mL. take the mass, and divide by the mL of water and then you get the density. ++ If it's an accurate sphere you can also measure its diameter and so calculate the volume, from which and the mass you can calculate the density.