Question

Remaining met hour, 15 minutes 44 seconds Question completion Status QUESTION 21 What is the pH of a solution prepared by mang 50.00L of 0.10 M and that the Ka NH -5.6 x 10-10 OR 9.16 11.13 QUESTION 22 What is the strongest monopotic acid of the following set if all the acid hydrofluoric acid with 3.5 x 10-4 Os benzoic acid with 6510-5 O cacetic acid with Ka - 1.8 x 10-5 lypochlorous acid with Ka - 3. 510-8 O QUESTION 23 When 50 ml of 0.10 M NAF is added to 50 mt. of 0.10 M HF, relative to the pll of the 0.10 MHF solution the pll of the resulting solution will A become 7 OB. decrease (become more acidic) O Cincrease (become more basie) D. remain the same QUESTION 24 medinmi in ne shume time and with Click Save and Submit to and submit Click Save All Amers to son la s 1 Type here to search 9 $ $

Answer 1

fution Giventhat: aj ka NaHu 5.6X10 o M th as ml Na H3 Na Hyt Concertration NH o.l0 M volume r NH So.00 ml IL ceo m mole O-lo Numbe ef mole ef NH3 Xo.esooL O.00S00 mol ee Contertration efNdpd o lo M IL Volume Nycl S.o ml Tooo mL FO.02S0L lo meleo.0s Numbo f mola ofN coooaso mole

Baseioni 2ation Constant C) of Nt oxlo 5.6 xlo (Bx(05 legb log Cixte) 5.00-o9. - S.00 o.36 H Ntts 4.tog Cs) polt PH nM.H-HI .56. the p 9.S6 Tesoltant Solution s

b) Concentration of Cach acid o.oCM Ca) hydrefloorfc acid with ka = 2.5 xlo HFPH log log Colo0 23 1.709 (-0.5 E.03 Benzonic actd with Ka 6.Sxlo-5 Cs CooH p g ogc log G-5d log olee) 0.5) 1.59 -5 8 xlo with acetfc atid CH3C00 CC) lg c 낭 log ka + PH a.3

dhypochlor o eag actd Wth ta =3SXlo" -8 oc PH gkale C 11 3.107 s 3.23 50 m and o.loM Naf asselbach wation- Henderg on Salt Cactd Pн Naf and aaid i's HE, ra of Hf fnal Volume 3-14 So tSo = l00 m and Salet Calted Concentratfon or acid

Colo M)50 m Molatyof HF Cl ml) oo OOS M o to M) Soml) Molaity ofNaf O.OS loo mt Pyfo Solution :- pit 3014 3.14+1log 3.1 o 3.14 hydregen fon Concentration (Solution of HF o-lo M Ct7Eae O.0007x o.lo = 8-4 xio3 O0000 t pleg( leg (8-utx13 -3 8-49X1o Thes eleative to pH of o-lo m HF The pt orIesolting Sclutio9 ncYeఆ