How many grams of drug X are in 10 mL of a 1:200 solution of X?
Solved it.
1:200 is 0.005 g, therefore you multiply it by 1000 mg/g to get mg. You then multiply it by 10 ml to get you the total amount of miligrams, which equals 50 mg.
To find out how many grams of drug X are in 10 mL of a 1:200 solution of X, we need to know the concentration of drug X in the solution.
The notation "1:200" represents the ratio of the solute (drug X) to the solvent (in this case, the liquid in which drug X is dissolved). In a 1:200 solution, the solute is present in a ratio of 1 part to every 200 parts of the solvent.
Since we know the ratio, we can calculate the concentration of drug X in the solution. To do this, we need to divide the total volume of drug X by the sum of the parts in the ratio.
In this case, the ratio is 1 part drug X to 200 parts solvent. Therefore, the concentration of drug X would be:
Concentration = (1/201) x 100%
To calculate the concentration, we divide 1 by 201 and then multiply the result by 100% to express it as a percentage.
Once we have the concentration of drug X in the solution, we can simply multiply it by the volume of the solution (10 mL) to determine the number of grams of drug X present.
Let's calculate it: