Chemists have a variety of means at their disposal to communicate the concentration of chemicals in solution. One common method of describing concentration is to give the moles chemical per liter solution, or the molarity. A mole is a term which stands for 6.02 x 10^23 atoms or molecules of...
Chemists have a variety of means at their disposal to communicate the concentration of chemicals in solution. One common method of describing concentration is to give the moles chemical per liter solution, or the molarity. A mole is a term which stands for 6.02 x 10^23 atoms or molecules of...
Express this as moles per kilogram solution. Now, you have 250 ml of water, which is about 250 g of water (assuming a density of 1 g/ml), but you also have 3 grams of solute, so the total mass of the solution is closer to 253 grams than 250. Using 2 significant figures, it's...
When making a solution in a lab, there are different ways to express the concentration. Some of the most common ways are listed below: 1. Molarity (M): moles of solute/liters of solution or moles/L (mol/L) 2. w/v (g/mL): weight in grams of solute/milliliters of solute 3. w...
Molarity is a familiar way to express concentration in chemistry. Take the number of moles, which is obtained from the molar mass, and divide by the number of liters. Normality takes into account reactive equivalents. The normality formula is N = Mn, wer
So you now know the moles of solute and the moles of water. Convert moles of water to grams of water using the molar mass of water Convert grams of water to volume of water using density (1.00 g/mL) Now divide moles of solute by litres of water to get molarity, except, it’s not...
A chemical has a FW of 180 g/mole and you need 25 ml (0.025 L) of 0.15 M (M = moles/L) solution. How many grams of the chemical must be dissolved in 25 ml water to make this solution? #grams/desired volume (L) = desired molarity (mole/L) * FW (g/mole) ...
Miligrams (mg) are units of mass, and mililiters (mL) are units of volume, so to convert between them you need to know the density of the material you...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer ...
How much glucose would be added to 1 liter of water to make a 1.5 M solution? how many grams of sucrose would I need to make 350mL of an 18% solution? What is the molarity (M) of a 5% dextrose (IV sugar solution) solution? (hint: molarity= number of ...
I first tried to get the concentration by doing: 1.2875 x 10^-4 moles of Cu / 1.03 mL I got 1.25 x 10^-4 So i thought I had it down correctly. Then I proceeded to do the same for my 2 mL solution, 3 mL solution, 4 mL solution, etc and the molarity came out the same ever...