To convert from grams per liter (g/L) to moles per liter (mol/L), you need to know the molar mass of the substance. Then, divide the mass in grams by the molar mass to get the number of moles. Finally, divide the number of moles by the volume in liters to obtain moles per liter. This conversion can be expressed using the formula: ( \text{Moles per liter} = \frac{\text{Mass in grams}}{\text{Molar mass in g/mol}} \times \frac{1}{\text{Volume in liters}} ).
To convert grams per milliliter to moles per liter, you need to know the molar mass of the substance. Assuming the substance is water (H2O), its molar mass is 18.015 g/mol. Therefore, 2.5 grams per 100 milliliters is equivalent to approximately 138.6 mmol/L (millimoles per liter) for water.
Since both of them are per liter....then all you need to do is a one step conversion of moles into grams using the molar mass...essentially you are going to multiply the mol/L by the molar mass in grams of the given substance...
To convert grams per milliliter to grams per liter, multiply by 1000. Therefore, 1.56 grams per milliliter is equal to 1560 grams per liter.
To convert moles per liter to millimoles per liter, you simply multiply the concentration in moles per liter by 1000. This is because there are 1000 millimoles in 1 mole. So if you have a concentration of 0.5 moles per liter, the concentration in millimoles per liter would be 500 millimoles per liter.
* First! Figure out what pyridine's formula is: C5H5N So, we know that each molecule of pyridine has 5 C, 5 H, and 1 N. The cool thing about the formula is it doesn't matter what the unit is, as long as the ratio between the C, H, and N remains the same, BUT, being that we're doing chemistry let's use moles. :) 5 moles of C + 5 moles of H + 1 mole of N -->1 mole of C5H5N This can be a weird concept, because you might think "how do you put in 11 moles of stuff and get only one mole of product"... but, just like baking, you put in 5 cups of sugar, 5 cups of flour, and 1 cup of butter, but get one really big cookie (didn't say it would be a good cookie). Well, you put in a few moles of this, a few moles of that...and you get a single mole of C5H5N. * After you figure out the chemical formula, calculate molecular mass: 5 moles of carbon = 5 x 12.011 grams per mole = 60.055 grams 5 moles of hyrdrogen = 5 x 1.008 grams per mole= 5.04 grams 1 mole of nitrogen = 1 x 14.007 grams per mole= 14.007 grams ADD: 60.055 + 5.04 + 14.007 = 79.102 grams per 1 mole of C5H5N * Convert solute to moles! Now, we've figured out that 1 mole of C5H5N has a mass of 79.102 grams....but, we're only putting 5 grams in the solution. How many moles is 5 grams if 1 mole is 79.102 grams? Calculate: 5 grams/ 79.102 grams = .063 moles * Convert to moles per liter (not moles to part of a liter)! So...we are adding .063 moles to .5 liters of solvent, but, molarity is always expressed in moles per liter, so we have to convert this: (.063 moles C5H5N/.5 liter) x 1 liter = .126 moles C5H5N So, if .063 moles of C5H5N dissolved in .5 liters gives a solution of the same concentration as 1.26 moles of C5H5N dissolved in 1 liter (note - we now have it in moles per liter!). As molarity is moles per liter...and adding 5 grams of pyridine (which is .063 moles) to .5 liters of solvent produces a solution of the same concentration (molarity) as dissolving 1.26 moles of solvent in 1 liter, we have produced a 1.26 molar solution.
Molarity
(Micrograms per litre)/(gram molecular weight of solute) = (micromoles per litre).
You have to know the concentration first. That will either be in grams per milliliter (or milligrams per milliliter), or it could be in moles per liter (molarity). If it's given in grams per milliliter, just multiply that number by 60 and multiply by 1000.If it's given in moles per liter, than first find how many moles in 60 mL by multiplying by 0.06, and then convert moles to grams using the molar mass of caffeine (194.19 grams per mole).See the Related Questions for how to convert moles to grams.
To convert grams per milliliter to moles per liter, you need to know the molar mass of the substance. Assuming the substance is water (H2O), its molar mass is 18.015 g/mol. Therefore, 2.5 grams per 100 milliliters is equivalent to approximately 138.6 mmol/L (millimoles per liter) for water.
1 mole = 106 micromoles
First you divide by 1000 to convert to moles/litre. Then you find the molecular mass (add up atomic masses from the periodic table). Multiply moles per litre by the molecular mass and it is in grams per litre.
Since both of them are per liter....then all you need to do is a one step conversion of moles into grams using the molar mass...essentially you are going to multiply the mol/L by the molar mass in grams of the given substance...
Multiply grams per liter by 0.001 to get grams per milliliter.
To convert grams per milliliter to grams per liter, multiply by 1000. Therefore, 1.56 grams per milliliter is equal to 1560 grams per liter.
To convert milligrams per liter (mg/L) to moles per liter (mol/L), you first need to divide the mass in milligrams by the molar mass of the substance to obtain the number of moles. Then, you can use this number to express the concentration in moles per liter.
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 moles per liter to millimoles per liter, you simply multiply the concentration in moles per liter by 1000. This is because there are 1000 millimoles in 1 mole. So if you have a concentration of 0.5 moles per liter, the concentration in millimoles per liter would be 500 millimoles per liter.