CHEM 6B Lecture Notes - Lecture 15: Lithium Hydroxide, Asteroid Family
28 Mar 2017
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Determine the concentrations of hf f-, and h3o+ in 0. 75 m hf. Hflag)t #20) = hot a) t flag: ~x~ to tx. A solution is made by adding 0. 50 mol naf (s) to 1. 0 l of 0. 75 m hf. Determine the concentration of all solute species and determine the percent dissocation of hf. x 0. 5* (0. 75) =6. 7x10-4 xo so fool not (he] Ex = 6th to tix-long (14404051st* 864 10-5) vibe-pot] [whit) How many solute species are there? a. 3 b. A solution is made by mixing 25. 00 ml of 0. 3500 m lioh with 15. 5 ml of 0. 2225 m ammonia. Kb for ammonia is 1. 80x10-5. calculate the ph of the solution. Dilute 100 ml of this solution to 500 ml. Determine the % dissociation and ph. (100ml) (0. 75m) =0. 15 m. Ya =(n07(ft khd (he)to"s 1. 67 10-4 x comes out to more than 5% can"t neglect. 21120--130 + at never forget lion-lot too-tan-dolt tacos.
