w/w percentage :
g of solute = grams ( weight in g) x % (express as a decimal)
Pharmaceutical calculation :
g of erythromycin = 500g x 0.04
Answer= 20g
therefore : 20 g of erythromycin is needed to make 4 percent in 500g of ointment.
25% of 500 grams = 500*25/100 grams = 125 grams.
The weight of 2 grams of cream ointment would be 2 grams. The measurement of grams refers to the mass of the substance, in this case, the cream ointment. It is important to accurately measure the amount of cream ointment to ensure proper dosage and application for medical or skincare purposes.
To find out how many grams of the 1 in 400 ointment contain 2 grams of the active ingredient, we can set up a proportion using the ratio of active ingredient to total ointment. 1 in 400 is the same as saying 1 part active ingredient to 400 parts total ointment. So, if 2 grams of active ingredient is in x grams of ointment, the proportion would be 1:400 = 2:x. Solving for x, x = (2 * 400) / 1 = 800 grams of ointment.
400
To calculate this, you first need to determine the mass of pure iron in 454.0 grams. This is done by multiplying 454.0 grams by 0.35 (the decimal equivalent of 35.00%). This gives 158.9 grams of pure iron. To find out how many grams of ore is needed, you need to set up the equation 0.35 * Mass of ore = 158.9 grams, which gives you 454 grams of ore needed.
To find 5 percent of 100 grams, you can multiply 100 by 0.05 (which is 5 percent as a decimal). This calculation would result in 5 grams, which is 5 percent of 100 grams. So, 5 percent of 100 grams is 5 grams.
6 grams is 0.6 percent of 1,000 grams.
To find 20 percent of 1000 grams, you can multiply 1000 by 0.20 (which is the decimal form of 20 percent). This calculation would be 1000 x 0.20 = 200 grams. Therefore, 20 percent of 1000 grams is 200 grams.
200 grams reduced to 120 grams per burger is 60 percent.
25
1950 grams
5% of 500g is 25g