(a)
Interpretation: The balanced equations for neutralization of
Concept introduction: The solutions possessing
(b)
Interpretation: The substance neutralizing the maximum amount of
Concept introduction: The solutions possessing
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- One half liter (500. mL) of 2.50 M HCl is mixed with 250. mL of 3.75 M HCl. Assuming the total solution volume after mixing is 750. mL, what is the concentration of hydrochloric acid in the resulting solution? What is its pH?arrow_forwardMost naturally occurring acids are weak acids. Lactic acid is one example. CH3CH(OH)CO2H(s)+H2O(l)H3O+(aq)+CH3CH(OH)CO2(aq) If you place some lactic acid in water, it will ionize to a small extent, and an equilibrium will be established. Suggest some experiments to prow that this is a weak acid and that the establishment of equilibrium is a reversible process.arrow_forwardA solution of sodium cyanide, NaCN, has a pH of 12.10. How many grams of NaCN are in 425 mL of a solution with the same pH?arrow_forward
- For an acid-base reaction, what is the reacting species (the ion or molecule that appears in the chemical equation) in the following bases? (a) barium hydroxide (b) trimethylamine (CH3)3N (c) aniline, C6H5NH2 (d) sodium hydroxidearrow_forwardWhat acid-base indicators, shown in Figure 18.24 would be suitable for the neutralization reaction whose titration curve is shown in Figure 18.30?Why?arrow_forwardYou are given four different aqueous solutions and told that they each contain NaOH, Na2CO3, NaHCO3, or a mixture of these solutes. You do some experiments and gather these data about the samples. Sample A: Phenolphthalein is colorless in the solution. Sample B: The sample was titrated with HCl until the pink color of phenolphthalein disappeared, then methyl orange was added. The solution became pink. Methyl orange changes color from pH 3.01 (red) to pH 4.4 (orange). Sample C: Equal volumes of the sample were titrated with standardized acid. Using phenolphthalein as an indicator required 15.26 mL of standardized acid to change the phenolphthalein color. The other sample required 17.90 mL for a color change using methyl orange as the indicator. Sample D: Two equal volumes of the sample were titrated with standardized HCl. Using phenolphthalein as the indicator, it took 15.00 mL of acid to reach the equivalence point; using methyl orange as the indicator required 30.00 mL HCl to achieve neutralization. Identify the solute in each of the solutions.arrow_forward
- Use Table 15.2 to decide whether the species on the left or those on the right are favored by the reaction. a NH4++H2PO4NH3+H3PO4 b HCN+HSCN+H2S c HCO3+OHCO32+H2O d Al(H2O)63++OHAl(H2O)5OH2++H2Oarrow_forwardList the formulas of three soluble bromide salts and three insoluble bromide salts. Do the same exercise for sulfate salts, hydroxide salts, and phosphate salts (list three soluble salts and three insoluble salts). List the formulas for six insoluble Pb2+ salts and one soluble Pb2+ salt.arrow_forwardAcid rain is less of a threat to lakes andstreams in areas where the bedrock is limestone(CaCO3). Which of the following is the equationfor neutralization of acid by limestone?A. CaCO3 + 2OH- ~>Ca(OH)2 + CO2B. CaCO3 + 2H3O+ ~>Ca2+ + CO2 + 3H2OC. CaCO3 + H3O ~>Ca + CO2 + H2OD. CaCO3 + OH- ~>Ca2+ + CO2 + H2OE. CaCO3 + 2H3O+ ~>Ca2+ + CO2 + 2H2Oarrow_forward
- What is the total concentration of ions in 0.20 M Al2(SO4)3 solution? O a. 0.5 M O b. 0.1 M C. 1.0 M d. 0.2 M e. 0.3 M F Farrow_forward4. Suppose you had a sample of Hydrobromic acid that had a molarity of 0.1 and you had 42 ml of it. If you added 20 ml of 0.15 M NaOH, what is the pH of the resulting solution? NaOH + HBr -> NaBr H2Oarrow_forward15arrow_forward
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