The statements below apply to acid A and base B. • Neutral salts are formed when acid A reacts with a strong base and when base B reacts with a strong acid. • Acid A has a higher Ka than HCIO2. • A 2.13 x 10-3 M solution of the base B has a pH of 11.6. Which among the choices below is most likely? Select one: O a. Acid A is HBRO4 and base B is KOH. O b. Acid A is HCIO and base B is NaOH. O c. Acid A is HBRO2 and base B is Sr(OH)2. O d. Acid A is HCIO4 and base B is Ba(OH)2.

Sodium bisulfate, NaHSO4, is used in some household cleansers as a source of HSO4- ion, a weak acid. What is the pH (just H3O+) of a 0.75-M solution of HSO4- that completely dissociates? What happens to the pH if it does not completely dissociate? HSO4-1+ H2O à SO42- + H3O+ Table SO3 SO2 O2 Initial   0 M 0 M Change -2x     Equilibrium     0.58

What is the conjugate base in this reaction: H,PO,+ H,O H,O+H,PO, O H.0+ O HO O HPO, O OH

Each solution below has pH = 4.5. Which solution most effectively maintains pH between 4.0 and 5.0 upon addition of a small amount of strong acid or base? O 1.00 M NaF +0.050 M HF. K₂(HF) = 6.3 x 10-4 O 2.1 M NaH₂PO4 + 0.0085 M H3PO4. Ka1(H3PO4) = 7.5 × 10-³ 0.80 M NaNO₂ + 0.055 M HNO₂. Ka(HNO2, nitrous acid) = 4.6 x 10-4 O 1.0 M NaC7H502 +0.50 M HC7H5O2. Ka(HC₂H5O₂, benzoic acid) = 6.3 × 10-5

The Ka for lcarbonic acid is 1.8 × 10–5. Which of the following statements best describes the pH of a 0.0010 M solution of carbonic acid?     The pH is exactly 7.     The pH is exactly 3.     The pH is greater than 7 but less than 12.     The pH is greater than 0 but less than 3.     The pH is greater than 3 but less than 7.

5. Find the pH of each mixture of acids. a. 0.115 M in HBr and 0.125 M in HCOOH b. 0.185 M in HCOOH and 0.225 M in CH3COOH austdo of noi fo 6. Arrange the solutions in order of increasing acidity. a. NaCl, NH4Cl, NaHCO3, NH4CIO2, NaOH b. Which is a stronger base, S²- or Se²- ?

Calculate the pH of each of these solutions.  is the solution acidic, basic, or neutral ?.       a.  a solution with a OH- concentration of 5.5 x 10-12 M       b.  a solution with a H3O+ concentration of 3.2 x 10-8 M       c.  a solution with a pOH of 7.00

Given pH is 8.62. a. what is [H+] b. what is [OH-] c. is it acidic or basic?

Four solutions of an acid dissolved in water are sketched below, as if under a microscope so powerful individual atoms could be seen. The same volume of solution is shown in each sketch. Rank the solutions by the strength of the dissolved acid. That is, select 1 under the solution of the strongest acid, 2 under the solution of the next strongest acid, and so on. =H₂0 Note: Solution 1 (Choose one) Solution 3 (Choose one) Solution 2 (Choose one) Solution 4 (Choose one) X 5

Part 1- What is the conjugate acid of H2PO4−? of NO3−? Part 2 -Write the balanced chemical equation for the neutralization reaction between Sr(OH)2 and H3PO4. What is the salt? Part 3 - If the concentration of H3O+ is 3.5 × 10-3 M, the concentration of OH−− is ________ M. (Show your Calculation) Part 4- Identify each substance as an Arrhenius acid, an Arrhenius base, or neither. b) HNO2 c) Ba(OH)2