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lumo UI 1 Tal1I O4 4 die neeueu to react vwith 43.74 mL of 0.285 M NAOH? NaH,PO4(s) + 2NaOH(aq) → NazPO4(aq) + 2H,O(1) 4.71 If 25.98 mL of 0.1180 M KOH solution reacts with 52.50 mL of CH3COOH solution, what is the molarity of the acid solution?

lumo UI 1 Tal1I O4 4 die neeueu to react vwith 43.74 mL of 0.285 M NAOH? NaH,PO4(s) + 2NaOH(aq) → NazPO4(aq) + 2H,O(1) 4.71 If 25.98 mL of 0.1180 M KOH solution reacts with 52.50 mL of CH3COOH solution, what is the molarity of the acid solution?

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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4.69 How many milliliters of 0.383 M HCl are needed to react with 16.2 g of CaCO3? 2HC1(aq) + CaCO3(s) CaCl2(aq) + CO2(g) + H2O(1) 4 4.70)How many grams of NaH,PO4 are needed to react with 43.74 mL of 0.285 M NaOH? NaH,PO4(s) + 2NaOH(aq) → NazPO4(aq) + 2H,O(1) (a 4 (a 4.71 If 25.98 mL of 0.1180 M KOH solution reacts with 52.50 mL of CH3COOH solution, what is the molarity of the acid solution? 4.72 If 26.25 mL of 0.1850 M NAOH solution reacts with 25.00 mL of H2SO4, what is the molarity of the acid solution? 4 (= 4 Problems in Context (= 4.73 An auto mechanic spills 88 mL of 2.6 M H,SO4 solution from an auto battery. How many milliliters of 1.6 M NaHCO3 must be poured on the spill to react completely with the sulfuric acid? 4.74 Sodium hydroxide is used extensively in acid-base titrations because it is a strong, inexpensive base. A sodium hydroxide solu- tion was standardized by titrating 25.00 mL of 0.1528 M standard hydrochloric acid. The initial buret reading of the sodium hydrox- ide was 2.24 mL, and the final reading was 39.21 mL. What was the molarity of the base solution? 4.75 An unknown amount of acid can often be determined by adding an excess of base and then "back-titrating" the excess. A 0.3471-g sample of a mixture of oxalic acid, which has two ioniz- able protons, and benzoic acid, which has one, is treated with 100.0 mL of 0.1000 M NaOH. The excess NaOH is titrated with fo (= re 20.00 mL of 0.2000 M HCl. Find the mass % of benzoic acid. re 4.76 One of the first steps in the enrichment of uranium for use in nuclear power plants involves a displacement reaction between UO2 and aqueous HF: UO,(s) + HF(ag) UF,(s) + H,O(1) [unbalanced] (=
Transcribed Image Text:4.69 How many milliliters of 0.383 M HCl are needed to react with 16.2 g of CaCO3? 2HC1(aq) + CaCO3(s) CaCl2(aq) + CO2(g) + H2O(1) 4 4.70)How many grams of NaH,PO4 are needed to react with 43.74 mL of 0.285 M NaOH? NaH,PO4(s) + 2NaOH(aq) → NazPO4(aq) + 2H,O(1) (a 4 (a 4.71 If 25.98 mL of 0.1180 M KOH solution reacts with 52.50 mL of CH3COOH solution, what is the molarity of the acid solution? 4.72 If 26.25 mL of 0.1850 M NAOH solution reacts with 25.00 mL of H2SO4, what is the molarity of the acid solution? 4 (= 4 Problems in Context (= 4.73 An auto mechanic spills 88 mL of 2.6 M H,SO4 solution from an auto battery. How many milliliters of 1.6 M NaHCO3 must be poured on the spill to react completely with the sulfuric acid? 4.74 Sodium hydroxide is used extensively in acid-base titrations because it is a strong, inexpensive base. A sodium hydroxide solu- tion was standardized by titrating 25.00 mL of 0.1528 M standard hydrochloric acid. The initial buret reading of the sodium hydrox- ide was 2.24 mL, and the final reading was 39.21 mL. What was the molarity of the base solution? 4.75 An unknown amount of acid can often be determined by adding an excess of base and then "back-titrating" the excess. A 0.3471-g sample of a mixture of oxalic acid, which has two ioniz- able protons, and benzoic acid, which has one, is treated with 100.0 mL of 0.1000 M NaOH. The excess NaOH is titrated with fo (= re 20.00 mL of 0.2000 M HCl. Find the mass % of benzoic acid. re 4.76 One of the first steps in the enrichment of uranium for use in nuclear power plants involves a displacement reaction between UO2 and aqueous HF: UO,(s) + HF(ag) UF,(s) + H,O(1) [unbalanced] (=
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