The wording is important here.
If it is a 2 *in* 5 dilution, then the scientist would need 200 ml of concentrate. The best way would be to take a graduated cylinder, put about 200 ml of solvent into the cylinder. Then put in the 200 ml of concentrate. Then add enough additional solvent to make a total of 500 ml. Mix, then pour it into a labeled and dated bottle, and screw on the lid.
If it is a 2 *to* 5 dilution, then you need 2/7ths concentrate, and 5/7ths solvent. One seventh of 500 ml is about 71.43, so you would need 142.86 ml of concentrate, and fill the rest with solvent until the total is 500 ml.
To make a 1000-fold dilution, take 1 part of your concentrated solution and mix it with 999 parts of a diluent, such as water or buffer. For example, if you start with 1 mL of the concentrated solution, you would add it to 999 mL of the diluent. Mix thoroughly to ensure homogeneity. This results in a dilution where the original solution is reduced to one-thousandth of its initial concentration.
take 1 ml, add 9 ml water.
To make a 1 to 1 dilution, you combine equal volumes of the concentrated solution and a diluent, typically a solvent like water. For example, if you have 10 mL of the concentrated solution, you would add 10 mL of the diluent. Mix thoroughly to ensure a uniform solution. This results in a final volume of 20 mL at half the concentration of the original solution.
To make a 1 to 100 dilution, start by taking 1 part of the concentrated solution and add it to 99 parts of a diluent (usually water or a buffer). For example, if you use 1 mL of the concentrated solution, mix it with 99 mL of the diluent. Ensure thorough mixing to achieve a uniform dilution. This results in a final solution that is 1% of the original concentration.
He urged people to use their sences to make observations, just as scientist today make observations
30 ounces. Roughly a quart. Quart=32 ounces
To make a 500 dilution, add 1 part of the substance you are diluting to 499 parts of water. For example, if you have 1 mL of the substance, you would add 499 mL of water to make a total volume of 500 mL for the dilution.
To find out how many ounces of chemical it would take to make 100 gallons of finished dilution at 0.5%, we can set up a proportion. Since 11 ounces of chemical are used in 10 gallons of water, we can establish the ratio of ounces of chemical to gallons of water as 11:10. By setting up a proportion and solving for x, we find that it would take 110 ounces of chemical to make 100 gallons of finished dilution at 0.5%.
To make a 50% acetone control, you can mix equal parts of acetone and water. For example, if you start with 10 ml of acetone, you would add 10 ml of water to make a 50% acetone solution.
Diluting with water will make this solution more neutral, meaning it will slowly increase to 7, which is the pH value of pure water used for this dilution.
to make sure its correct
NO
To make orange juice from concentrate, simply mix the concentrate with water according to the instructions on the package. Stir well until the concentrate is fully dissolved, and then chill the juice before serving.
In chemistry and biology, the dilution factor is the total number of unit volumes in which the material is dissolved. As I understand it, the dilution refers to the dilution ratio. If you add 1 part of something to 4 parts of something else, the dilution ratio is 1 to 4. The dilution factor counts all the parts and expresses the same thing as 1 out of 5.
You add 9.09ml of stock solution to a volumetric and make it up to 1 litre to get a 110 dilution
concentrate
Concentrate is a regular verb so you add -ed to make the past tense = concentrated