If an injectable contains 20% of mannitol, how many mls of the injection should be administered to provide 100gm of mannitol?
0.5ml
To determine the number of milliliters (mls) of injection needed to provide 100gm of mannitol with a concentration of 20%, we can set up a simple ratio equation.
Let x represent the number of milliliters needed.
The ratio of mannitol concentration can be expressed as:
20g mannitol / 100ml injection = 100g mannitol / x ml injection
To solve for x, we can cross-multiply and then divide:
20g * x ml = 100g * 100ml
20x = 10000
x = 10000 / 20
x = 500
Therefore, 500 mls of the injection should be administered to provide 100gm of mannitol.
To determine the number of milliliters (mls) of the injection needed to provide 100g of mannitol, we need to use the concentration of mannitol in the injectable.
Given:
Concentration of mannitol in the injectable = 20%
Quantity of mannitol needed = 100g
To find the amount of mannitol in the injectable solution, we can use the following formula:
Amount of mannitol = Concentration of mannitol * Volume of injection
Rearranging the formula to find the Volume of injection, we have:
Volume of injection = Amount of mannitol / Concentration of mannitol
Plugging in the given values, we get:
Volume of injection = 100g / 20% = (100g / 20) / 100 = 0.5 / 100 = 0.005 liters
Since 1 liter is equal to 1000 ml, the final step is to convert liters to milliliters:
Volume of injection = 0.005 liters * 1000 ml/liter = 5 ml
Therefore, to provide 100g of mannitol using an injectable solution with a concentration of 20% mannitol, you would need to administer 5ml of the injection.