A patient receives 100ml of 24% (m/v) mannitol solution every hour

Question

How many grams of mannitol does the patient receive in 25 hours?
Express your answer using two significant figures.

Answer 1

To calculate the number of grams of mannitol the patient receives in 25 hours, we can use the given concentration of the solution.

First, we need to determine the number of grams of mannitol in 100ml of the solution. The concentration is given as 24% (m/v), which means there are 24 grams of mannitol in 100ml of solution.

Next, we can multiply this amount by the number of hours the patient receives the solution. In this case, the patient receives 100ml every hour for 25 hours. So, the total amount of solution received by the patient is:

100ml/hour * 25 hours = 2500ml = 2500g (since 1ml of solution is equal to 1g)

Finally, we can calculate the number of grams of mannitol received by multiplying this amount by the concentration:

2500g * 24% = 2500g * 0.24 = 600g

Therefore, the patient receives 600 grams of mannitol in 25 hours.