To prepare an 80% glycerol solution, you would mix 80 parts glycerol with 20 parts water. For example, you could mix 80 mL of glycerol with 20 mL of water to make 100 mL of an 80% glycerol solution. Make sure to thoroughly mix the glycerol and water until the solution is homogenous.
The chemist will use 100 liters of the 80% acid solution and 100 liters of the 30% acid solution to make a 200-liter solution that is 62% acid. The amount of acid in the 80% solution will be 0.8 * 100 = 80 liters, and in the 30% solution, it will be 0.3 * 100 = 30 liters.
To make a 2% Tween 80 solution, you would typically mix 2g of Tween 80 with 98g of water or another appropriate solvent to make a total of 100g of solution. This will give you a 2% concentration of Tween 80 in the final solution.
To find out how much of the 30% acid solution is needed, we can set up a weighted average equation. Let x be the volume of the 30% solution needed. Since the final solution is 62% acid, we can write the equation as: 0.80*(400-x) + 0.30x = 0.62*400. Solving this equation, we find x to be 280 liters. Therefore, 280 liters of the 30% acid solution is needed to make a 400L solution that is 62% acid.
Let x be the volume of the 6% solution and y be the volume of the 12% solution. We have the following system of equations: x + y = 240 (total volume) 0.06x + 0.12y = 0.07 * 240 (electrolyte amount) Solving this system, we find x = 160 mL of the 6% solution and y = 80 mL of the 12% solution to make 240 mL of a 7% electrolyte.
Assuming that you mean that your pure acid is twice as concentrated as your 50% acid. Pretending your pure acid is at 1 mol/gallon and the 50% acid is 0.5 mol/gallon1 molgallon-1 * x gallons = x mol0.5 molgallon-1 * 4 gallons = 2 mol(x + 2) mol for (x+4) gallons = 0.8(x+2) mol / (x+4) gallons= 0.8 molgallon-1x + 2 = 0.8x + 3.20.2x = 1.2x = 6add 6 gallons of pure acid to the 4 gallons to make 10 gallons of 80% acid solution
To prepare 200ml of 80% glycerol solution, you would mix 160ml of glycerol (200ml x 80%) with 40ml of water. Calculations: 200ml x 80% = 160ml glycerol, and 200ml - 160ml = 40ml water needed. Mix the glycerol and water thoroughly to obtain the 80% glycerol solution.
Mixing 80 liters of 15% solution and 520 liters of 90% solution will give 600 liters of 80% solution.
The chemist will use 100 liters of the 80% acid solution and 100 liters of the 30% acid solution to make a 200-liter solution that is 62% acid. The amount of acid in the 80% solution will be 0.8 * 100 = 80 liters, and in the 30% solution, it will be 0.3 * 100 = 30 liters.
To create a 400 L solution that is 62% acid, you would need 200 L of the 80% acid solution and 200 L of the 30% acid solution. This would result in a final solution with the desired concentration.
Solution: 36/0.45 = 80, it follows that 1% of 80 is 0.8 answer: 0.8
144liters
614
80 liters
mary mixed 2l of an 80% acid solution with 6l of a 20% acid solution. what was the percent of acid in the resulting mixture
In order to reduce the percentage of acid from 80% to 50%, you would need to add another 36 kg of diluent (e.g. water).
Let Q be the quantity of 80% solution required then (300 - Q) is the quantity of 30% solution as together the two solutions must equal 300. Then, [80 x Q] + [30 x (300 - Q)] = [40 x 300] 80Q + 9000 - 30Q = 12000 50Q = 3000 Q = 60...........which means (300 - Q) = 240 60ml of 80% acid solution + 240ml of 30% solution produces 300ml of 40% solution.
Raise your score by 12%.