How many milliliters of two liquids with specific gravities of 0.950 - ProProfs Discuss

How many milliliters of two liquids with specific gravities of 0.950 and 0.875 should be used to prepare 1500 mL of aÂ liquid having a specific gravity of 0.925?

A. 1000 mL (sp gr 0.950) 500 mL (sp gr 0.875)
B. 2250 mL (sp gr 0.950) 1125 mL (sp gr 0.875)
C. 500 mL (sp gr 0.950) 1000 mL (sp gr 0.875)
D. 1125 mL (sp gr 0.950) 2250 mL (spgr 0.875)

This question is part of MODULE 3.1: Pharmaceutical calculation pretest
Asked by Megatets, Last updated: Jan 05, 2020

G. Roland

G. Roland, Professor, Austin

The answer to this is A. It is important that the correct figures are figured out because even a little amount will have a possibility to change the results. There are times when the results that are given by experimentation are not accurate simply because of people’s mistake in computing the right amount of materials that will be used.

Now, it is clear that the proper answer is 1000 mL and 500 mL. The other given choices are too high for the given amount. The figures will change considerably if the amount of gravity will be changed. This plays a huge role in the possible outcome of the experiment.

A 1000 ml(sp gr 0.950) 500ml(sp gr 0.875)

John Smith