Which of the following is the strongest acid? 1. H₂O IA 10 IIA Be Mg Ba La Ra Ac 11. H₂S III. H₂Se SHAL Cr Mn Fe CONI Cu Zn Zr Nb Mo TC Ru Rh Pd Ag Cd PAHg Ta W Re O In 1403 Unh Uns IV. H₂ Te IIIA IVA VA VIA VIIA He O 24 VIIIA 17 STO 10 Ne 10 Ar Ge As Se Br Kr 63 54 Xe 64 06 Po At Rn

Consider the following data on some weak acids and weak bases: K name formula acetic acid HCH,CO₂ 1.8×105 nitrous acid HNO₂ 4.5×104 acid solution 0.1 MNH₂Cl 0.1 M CH₂NH3Br 0.1 M KNO 0.1 M KNO₂ Use this data to rank the following solutions in order of increasing pH. In other words, select a l' next to the solution that will have the lowest pH, a '2 next to the solution that will have the next lowest pH, and so on. X PH choose one choose one choose one base choose one K₂ NH, 1.8 10 methylamine CH, NH₂ 4.4×10 name ammonia formula ?北 25 Ar

The pH of an aqueous solution of weak monoprotic acid is 3.15. What is the initial concentration of the acid if the pKa of the acid 5.74? 0.0576 M OA. 0.387 M O B. 0.657 M OC. OD.0.274 M 0.315 M OE.

A 0.15 M weak acid solution is 5.5 % ionized. Calculate the H3O* ion concentration in the solution. O 0.63M O 1.2 x 10 12M O 1.2 x 10-14 M O 8.3 x 10-3 M O 1.5 x 10-3 M