Buffers, Henry’s Law Discussion Workshee

5) GI Culate the PH ofa solution which results from the mixing of 50.0ml of -SM Hel which 5omL of o.4M NH3 .

5. How many mL of 0.10 M NaOH should the student add to 20 mL 0.10 M HFor if she wished to prepare a buffer with a pH of 3.55, the same as in Problem 4? n odi sainW.noi ("muinoras (& pa) oiasd H4 lo coloa mL 13 neded in be

6:07 LTE 74 Ch 17 Buffers and solubility 1. Buffers: C... 2. Buffers: C... M 3. Buffer P... 1req 4. Titration C... M 1req 5. Titration... Preparation Question [Review Topics] The following graph shows the pH curve for the titration of 25 mL of a 0.1 M monoprotic acid solution with a 0.1 M solution of a monoprotic base. Question Question 6. Writing Ksp... 7. Ksp: Calcul... 6 M 4 8 2 0 M M 8. Common I... 5 10 15 20 25 30 35 40 45 50 mL of 0.1 M base added 9. Precipit... 1req (1) The pH curve M 10. Buffer + represents the titration of a with a ✰ acid Progress: 7/10 groups Due Apr 12 at 10:00 PM base. (2) Choose a Previous Next Finish Assignment Email Instructor Save and Exit Αν 03-cnow-owl.cengagenow.com ?

10. How many mililiters of 0.085 M NaOH are required to titrate  the following solution to the equivalence point:  40.0 mL of 0.0900M HNO3  Group of answer choices A) 42.4 mL NaOH soln B) 23.6 mL   C.) 37.8 mL   D.) 40.0 mL

Quer > How mauy guam of Sodium Nitrate mull be add ed to 230 me of 0.15 M nitrow aud. in orden to prebate a buffer at PM 4.37. pha of Hitrow acid is 3.337. grams

hot go to completion. Rather, the th the reactants and products have con- ch a system is said to be in chemical equilibrium temperature, a reaction mixture obeys the Law bses a condition on the concentrations of reactar oressed in the equilibrium constant K, for the xperiment we will study the equilibrium pro I) ion and thiocyanate ion: Fe (aq) When solutions containin 6. A buffered solution is made by adding 75.0 g sodium acetate to 500.0 mL of a 0.64 acetic acid is 1,7x103 extent, forming reaction, no M solution of acetic acid. What is the pH of the final solution? (Assume no volume change.) K. of 5.

by the mohy melhof a 0.3172gm 8ample is dissolved in 5oml of water anol titration to the Aggcrou end point Nequining 36.14ml of 6.1190 M lag No3) Report the

3. Cal culate Nattz POy:(Ka, kaz and tas of HsPO4 6.32x10-8 and 4.5x10-13 he ott of a o.0400M Shutin of ane 7.11 メL65 respectively). 4. Con Sider the titration of 1w.00ml of a 0.200M Solution of he hypothetical acid tzA uith o.loc Soclium hydroxide. Enourhg hat Kay = (. 00 k1o-8, and kag = 1.00 xLo 12 Calculate ka after he addition of a) 1o. oml Na OH =l:00x16", E1:00x104 9 20.oml Na OH ) 30. omL Na ott d) 40.0ml Na OH

Cons A010-mol sample of AgNO,() is dissolved in 1.00 Lof 1.40 M NH Part A How many groms of KI can be dissolved in this solution without a precipitate of AgI() faming? Express your answer using two significant figures. AE