The two measurements must be in the same units (or units that are directly convertible from one to the other). A gram is a unit of mass, a litre of volume and there is no direct conversion between the two.
25% of 500 grams = 500*25/100 grams = 125 grams.
195 grams.
1 gram = 1000 milligrams. You now have all the information required to work out, for yourself, the answer to this and similar questions.
2400 mg is what percent of 1000 ml"?
Here is the information for the problem: The volume of compartment A = 1 liter. In compartment B, fluid flows through at the rate of 5 liters per minute; this fluid flows through the compartment only once and is not re-circulated. At the start of the experiment, the concentration of drug Z in A is 10 x 10-9 M, and 10% of the drug Z in A crosses to B each minute.
1% solution = 1 gram per 100 mL, 10 grams per liter 20 grams
1 liter = 1000 mL 1 gram = 1000 mg So there are 45,000 mg in 1 liter divided by 1000 mg per gram = 45 grams/liter
It is the amount of medication found in an item, when referring to pharmacy stock solutions. So for instance, if you have a percent strength of 15% this is the same as saying I have 15g of drug in 100ml of a liquid. Now keep in mind there are different types of stocks I am using the most common of weight in volume. So if I need to find out how many grams are in 50ml of the drug, I can set it up using the ratio portions method. 15g/100ml = X/50ml X= 7.5 grams of drug in 50ml of the fluid.
25% of 500 grams = 500*25/100 grams = 125 grams.
You need 50 g of this drug.
To prepare a 2% solution in 3 liters, you would need 60 grams of the drug. This is calculated by multiplying the volume (3 liters) by the percentage (2%) and converting the result to grams. 3 liters x 2% = 60 grams.
195 grams.
To calculate the amount of drug in the solution, you need to multiply the volume of the solution (300 ml) by the concentration of the drug (18%). First, convert the percentage to a decimal by dividing by 100 (18% = 0.18). Then, multiply the volume (300 ml) by the concentration (0.18) to find the amount of drug in grams.
The percent of drug abuse in middle school is 52%.
600
5-to-7 percent