Ibuprofen is a poorly water-soluble acidic drug. (i) predict ph of a 100. hm solution of ibuprofen at 25°c (ii) predict ph of a 0.100 m solution of the sodium salt of lbuprofen at 25°c (b) benzocaine is a poorly water-soluble basic drug. (i) predict ph of a 1.00 mm solution of benzocaine at 25°c. (ii) predict ph of a 0.100 m solution of the chloride salt of benzocaine at 25°c.

Which type of bond is present in hydrogen sulfide (h2s)? the table of electronegativities is given. a. hydrogen b. ionic c. nonpolar covalent d. polar covalent

(1.6 × 10-19)(5.0 × 106) = c × 10d identify the missing numbers below to show the result of multiplying the numbers.

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.