Apharmacist attempts to weigh 0.375 g of morphine sulfate on a balance of dubious accuracy. when checked on a highly accurate balance, the weight is found to be 0.400 g. calculate the percentage of error in the first weighing.

Step-by-step explanation:

Given: A pharmacist attempts to weigh 0.375 g of morphine sulfate on a balance of dubious accuracy. When checked on a highly accurate balance, the weight is found to be 0.400 g.

i.e. Estimated weight =  0.375 g  and Actual weight = 0.400 g

Now, the percentage of error in the first weighing is given by :-

Hence, the percentage of error in the first weighing =