The concentration of a solution is moles/volume. 2.943g of pure sulphuric acid H2S4 is approximately 15 moles, and 15/150 cm3 is 10.
Osmosis of water from a low concentration of salt to a high concentration
1.Weigh 15 g ultrapure NaCl dried at 110 0C for 30 min. 2. Transfer NaCl in a clean 0,1 L volumetric flask. 3. Add 0,09 L demineralized water. 4. Put the flask in a thermostat and maintain 30 min at 20 0C. 5. Add demineralized water up to the mark. 6. Stir vigorously and transfer in a clean bottle with stopper. 7. Add a label with necessary information.
It would flow toward the weaker solution. The intent of osmosis is to gain equilibrium, so the 15 percent solution would gain sugar content until, if you allowed the osmosis to go to completion, the two solutions had the same amount of sugar in them. "Going to completion" doesn't necessarily mean 20 percent concentration on both sides. If you were to make a gallon bag out of dialysis membrane, fill it with 15 percent solution and put a stirrer in it, then drop it into a 25,000-gallon reaction vessel full of 25 percent solution with a stirrer in it, you might wind up with 24.9999999999 percent sugar solution in both bags.
Let x be the ounces of 15% alcohol solution. The amount of alcohol in the 15% solution is 0.15x, and the amount of alcohol in the 23% solution is 0.23(100 - x). Setting up the equation 0.15x + 0.23(100 - x) = 0.15(100) solves for x, which is approximately 38.5 ounces of the 15% alcohol solution needed.
The mole fraction of NaCl in the solution is calculated by dividing the moles of NaCl by the total moles of NaCl and water. In this case, the mole fraction of 18 mol NaCl in a solution of 100 mol water is 0.15 (18 mol NaCl / (18 mol NaCl + 100 mol water)).
Mixing 80 liters of 15% solution and 520 liters of 90% solution will give 600 liters of 80% solution.
It depends on the final solution Volume you want to prepare. For 100ml of a 6M NaCL solution, you add 35.1g of NaCl to water until you reach 100ml. Dissolve and autoclave for 15 mins.
The concentration of a solution is moles/volume. 2.943g of pure sulphuric acid H2S4 is approximately 15 moles, and 15/150 cm3 is 10.
Osmosis of water from a low concentration of salt to a high concentration
Depending on the desired concentration of the solution !
15 M HNO3 indicates a solution of nitric acid with a concentration of 15 moles per liter. This solution is highly acidic and can be used for various chemical reactions and laboratory purposes. The M signifies molarity, a measurement of concentration.
15% of 600 = 15% * 600 = 0.15 * 600 = 90
The concentration of the diluted solution will be 15(300/1000) = 4.5 %, if the percent is expressed on a weight/volume basis.
Osmosis of water from a low concentration of salt to a high concentration
Osmosis of water from a low concentration of salt to a high concentration
15 grams sugar per liter is the concentration, in terms of mass per volume. To express the concentration in molarity (assuming the sugar is sucrose): 15 g sucrose * (1 mole sucrose / 342 g sucrose) / 1 L = 0.0439 M aqueous sucrose