Chemistry, 03.12.2021 03:10 lindseysmith9522
For the diprotic weak acid h2a, ������a1=3. 2×10−6 and ������a2=6. 1×10−9. What is the ph of a 0. 0650 m solution of h2a ?.
Answers: 3
Chemistry, 22.06.2019 10:50
A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.
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Chemistry, 23.06.2019 06:30
An engineer decides to use a slightly weaker material rather than a stronger material, since she knows that the stronger material can break suddenly. this is an example of what? a choosing a material that will show warning before it fails b using composite materials that combine strength c using a material for multiple applications d using design techniques that increase efficiency and reduce cost
Answers: 3
For the diprotic weak acid h2a, ������a1=3. 2×10−6 and ������a2=6. 1×10−9. What is the ph of a 0. 06...
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