The concentration of the mannitol solution is given as 20% (m/v), which means there are 20 grams of mannitol in every 100 mL of solution.
In 1 hour, the patient receives 100 mL of the mannitol solution.
Therefore, the amount of mannitol given in 1 hour is:
(20 grams/100 mL) x (100 mL) = 20 grams
So, 20 grams of mannitol are given in 1 hour.
A patient receives 100 mL of 20% (m/v) mannitol solution every hour.
How many grams of mannitol are given in 1 hour?
Express your answer using two significant figures.
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