A sample of concentrated sulphuric acid has a density of 1.83gcm^-3 and contains 94.0% of sulphuric acid by mass .What is the concentration of sulphuric acid in the sample?
(Relative atomic masses:H=1.0,O=16.0,S=32.1)
Molarity question 2 Quick! I want details explanation
2006-12-25 10:28 pm
回答 (1)
2006-12-25 11:34 pm
✔ 最佳答案
mass of H2SO4 in 1 cm^3 = 1.83 gno. of mole of H2SO4 in 1 cm^3 = 1.83 / ( 1X2 + 32 + 16X4 ) = 1.83 / 98 = 0.01867
no. of mole of H2SO4 in 1000 cm^3 = 0.01867 X 1000 = 18.67
Concentration = 18.67 M
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