In an experiment to determine the percentage of air in a soil sample, the following readings were recorded: volume of water in measuring cylinder = 500 cm3v...

Assessment: JAMB UTME - Biology - 2008 Subject: Biology

Question 1 Report

In an experiment to determine the percentage of air in a soil sample, the following readings were recorded: volume of water in measuring cylinder = 500 cm3volume of soil added to water = 350 cm3volume of water and soil after stirring = 800 cm3the percentage of air in the soil sample is
Answer Details
volume of air in the soil = (350 + 500) - 800
= 850 - 800 = 50 cm3
% of air in the soil = (volume of air)/total volume x (100)/1 = (50)/800 x 100 = 6.25%

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