I need help with this! the problem says
"Thimerosal is an organic compound (gram-molecultar mass = 404.8 g/mol). A .100% solution of thimerosal is sometimes used as an antiseptic. Assume that this solution has a density of 1.00 g/mL."
I need help with these two:
What mass of thimerosal must be mixed with 25.0 g of water to make a .100% solution?
What volume of 0.100% solution contains 0.750 g of thimerosal?
The percent concentration is 13,75 %.
To create a 12% weight/volume (w/v) solution, you need 12 grams of solute for every 100 mL of solution. Therefore, for 100 mL of a 12% w/v solution, you would require 12 grams of the solute.
To make a 3.7% EDTA solution, you would add 3.7 grams of EDTA to 100 mL of solution.
To make a 10% KI solution, dissolve 10 grams of potassium iodide (KI) in 90 grams of water, for a total of 100 grams of solution. This will give you a 10% weight/volume (w/v) solution of KI.
Another way to express the concentration of a 0.01 percent by weight glucose solution is to say it is a 100 parts per million (ppm) solution. This means there are 100 grams of glucose in every 1 million grams of solution.
40.8 grams
The percent concentration is 13,75 %.
A 10 percent solution of dextrose means that there are 10 grams of dextrose per 100 milliliters of solution. Therefore, in 1000 milliliters (which is 10 times 100 ml), there would be 10 grams x 10 = 100 grams of dextrose in a 1000 ml solution.
The weight of 10 percent acetic acid solution would depend on the total volume of the solution. For example, if you have 100 grams of a 10 percent acetic acid solution, it would contain 10 grams of acetic acid.
This is (mass of solute) divided by (mass of total solution) expressed as a percentage. The solute is what you are dissolving into the solution. Example: you have 90 grams of water, and you add 10 grams of salt (sodium chloride). The water is the solvent, sodium chloride is the solute, and the solution is salt water. 90 grams + 10 grams = 100 grams (mass of total solution). (10 grams) / (100 grams) = 0.1 --> 10% mass mass percent concentration.
The answer is 8 g NaCl.
32.4
See the two Related Questions to the left for the answer.The first is how to prepare a solution starting with a solid substance (and dissolving it). The second question is how to prepare a solution by diluting another solution.
A 25 percent glucose solution means that there are 25 grams of glucose in every 100 milliliters of the solution. Therefore, in 25 milliliters of a 25 percent glucose solution, there would be 6.25 grams of glucose. This concentration is commonly used in medical and laboratory settings for various applications.
200 grams X 0.10 = 20 grams
To prepare a 5% NaCl solution, you will need 200 grams of NaCl for 4000 mL (4 L) of solution. This is calculated as 5% of 4000 mL, which equals 200 grams.
4314.9 grams