Mass of crucible = 10g
Mass of crucible and soil before heating = 29g
Mass of a crucible and soil after heating = 18g
From the information above, determine the percentage of water in the given soil sample?
20%
25%
40%
60%
Explanation
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Mass of crucible = 10g
Mass of crucible and soil before heating = 29g
mass of soil before heating= 29-10 = 19g
Mass of a crucible and soil after heating = 18g
mass of soil after heating= 18-10 = 8g
therefore mass of water= mass of soil before heating - mass of soil after heating = 19-8 = 11
% of water in the given soil sample = (11/19)* 100
57.89
It's obvious that you can round 57.89 to 60%. which is what i will pick
my problem though is that the fact that 25% is in the option suggests that our answer should not be rounded? either that or we are just meant to choose the closest option (like nearest in meaning
♂️)
