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ChemRookie
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How would you go about changing liters, like 1L into moles?
Thanks
Thanks
ChemRookie said:How would you go about changing liters, like 1L into moles?
dextercioby said:U got the volume of water,u need the # of moles.
18 ml of water<------>18 g of water<------>1 mol
Daniel.
One gram of water is the same as 1ml of water.ChemRookie said:huh?
I don't get it.
The Bob said:One gram of water is the same as 1ml of water.
You know that you have 5 ml but let's pretend you have 18ml (you will see why in a minute).
You can convert 18ml into 18g because it is water. Other substances will needed a different change factor.
Now you know the molecular formula of water (with is H_{2}O). The molar mass of this is 18g ml^{-1}.
To convert from mass to moles you have to use the equation:
[tex]moles \ (mol) = \frac{mass \ (g)}{molar \ mass \ (g \ mol^{-1})}[/tex]
Therefore, 18g divided by 18g ml^{-1} is equal to 1 mole.
Use this equation find how many moles of water there are in 5 ml.
The Bob (2004 ©)
's alright.ChemRookie said:thanks..now I get it.
ChemRookie said:How would you go about changing liters, like 1L into moles?
Thanks
ChemRookie said:the info I have is:
a 1L container with 5mL of water helt at 20degcel
I need to find the vapour pressure. I'm supposed to use PV=nrt right?
how do I get n though?
To convert litres to moles, you will need to know the molarity (M) of the solution. Molarity is the number of moles of solute per litre of solution. Once you have the molarity, you can use the formula moles = molarity x volume (in litres) to calculate the number of moles.
Converting litres to moles is important in chemistry because it allows us to accurately measure the amount of a substance in a solution. Moles are a unit of measurement for the number of particles (atoms, molecules, ions) in a substance, while litres are a unit of volume. By converting from litres to moles, we can determine the concentration of a solution and use it in various calculations and experiments.
The relationship between litres and moles is based on the molarity of a solution. Molarity is calculated by dividing the number of moles of solute by the volume of the solution in litres. This means that the more moles of solute present in a given volume of solution, the higher the molarity will be.
No, you cannot use any unit of volume to convert to moles. The unit of volume must be in litres because molarity is based on the concentration of a solution in moles per litre. Using a different unit of volume, such as millilitres or gallons, would not give an accurate conversion to moles.
Yes, there is a specific formula for converting litres to moles. The formula is moles = molarity x volume (in litres). This formula is commonly used in chemistry to convert between the two units of measurement and is necessary to accurately measure the amount of a substance in a solution.