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4. If 15 mg/L of HOCl is added to a potable water for disinfection and the final measured pH is 7.0, what percentage of...
estimate the pH of water that contains .62 mg/L of carbonic acid. assume that [H+]=[HCO3-] at...
estimate the pH of water that contains .62 mg/L of carbonic acid. assume that [H+]=[HCO3-] at equilibrium and that the dissociation of water may be neglected. the water temperature is 25C. molecular weight of H2CO3=62g/mol.
Question 2 A clarified wastewater containing 5 mg/L NH3-N is to be breakpoint chlorinated. The water has an al...
Question 2 A clarified wastewater containing 5 mg/L NH3-N is to be breakpoint chlorinated. The water has an alkalinity of 100 mg/L as CaCOs. Determine i. The stoichiometric requirement for Cl2. ii. If the water is sufficiently buffered. The increase in dissolved solids to be expect. [15 marks) Question3 The pH of a 0.1 Msolution of sodium bicarbonate is adjusted to 7.0 with a strong acid. A 100 mL portion of this solution is obtained, and to this volume 100...
60 mL of 1M H_2SO_4 is added to 2 L of unbuffered water. What is the...
60 mL of 1M H_2SO_4 is added to 2 L of unbuffered water. What is the final pH? How many grams of hydrochloric acid are needed to neutralize a 1L solution of water at pH 13.2? Estimate the pH of water that contains 23 mg/L of ammonium (NH_4^+). Assume that [H+] = [NH_3] at equilibrium and that there is no gas exchange. pK_a = 9.3.
2. What is the PCO2 and CO3 (aq) concentration of a 5 °C ground water sample with pH= 6.5, and 50 mg L HCO; (aq)? 3...
2. What is the PCO2 and CO3 (aq) concentration of a 5 °C ground water sample with pH= 6.5, and 50 mg L HCO; (aq)? 3. In 1960 the average concentration of CO2(g) is 316.91 ppm. What was the pH of acid rain then. 4. Henry's constant for CO2(g) decreases with temperature, and therefore the solubility of CO2(g) also decreases with temperature. Use enthalpy data at 25 °C and Le Chatelier's principle to explain why and how equilibrium shifts with...
Exercise 2 Separation of a Mixture Based on Acid-Base Properties One purpose of this exercise is...
Exercise 2 Separation of a Mixture Based on Acid-Base Properties One purpose of this exercise is to learn how to use a separatory funnel to extract a single component away from other compounds in solution. To do so, we will apply the principles of solubility and acid-base behavior you’re seeing in class. One of the compounds is neutral in the acid-base sense. It has no ability to either donate or accept a proton from an aqueous solution, and will remain...
Please help with solving Question 1 (A-C) Thank you! Unless otherwise specified in the problem, you...
Please help with solving Question 1 (A-C) Thank you!
Unless otherwise specified in the problem, you may assume that all solutions are at 25°C. 1. 50.0 mL of a pH 6.00 carbonic acid buffer is titrated with 0.2857 M NaOH, requiring 17.47 mL to reach the second equivalence point. a. Calculate the molarity of carbonic acid and bicarbonate in the original buffer. Carbonic acid: Bicarbonate: b. Calculate the pH of the solution after a total of 100.0 mL of 0.2857...
1)I need introduction will be different from this introduction but in the same subject and the sa...
1)I need introduction will be different from this introduction
but in the same subject and the same idea (with littel
different)
2)Select the discussion ,results ,conclusion , methods and
references from this search
INTERNATIONAL JOURNAL OF SCIENTIFIC& TECHNOLOGY RESEARCH VOLUME 2, ISSUE 9 SEPTEMBER 2013 ISSN 2277-8616 Dyes Removal From Textile Wastewater Using 1 PREFACE 2 MATERIALS AND METHODS the largest Bangladesh, the textile industry manufacturing industries. in every stage of textile industry 2.1 Sample and Adsorbents Collection various types...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
Need answers. thank you VOCABULARY BUILDER Misspelled Words Find the words below that are misspelled; circle...
Need answers. thank you
VOCABULARY BUILDER Misspelled Words Find the words below that are misspelled; circle them, and then correctly spell them in the spaces provided. Then fill in the blanks below with the correct vocabulary terms from the following list. amino acids digestion clectrolytes nutrients antioxident nutrition basal metabolic rate extracellulare oxydation calories fat-soluble presearvatives catalist glycogen processed foods cellulose homeostasis saturated fats major mineral coenzyeme trace minerals diaretics metabolism water-soluable 1. Artificial flavors, colors, and commonly added to...
Question 2 A clarified wastewater containing 5 mg/L NH3-N is to be breakpoint chlorinated. The water has an alkalinity of 100 mg/L as CaCOs. Determine i. The stoichiometric requirement for Cl2. ii. If the water is sufficiently buffered. The increase in dissolved solids to be expect. [15 marks) Question3 The pH of a 0.1 Msolution of sodium bicarbonate is adjusted to 7.0 with a strong acid. A 100 mL portion of this solution is obtained, and to this volume 100...
60 mL of 1M H_2SO_4 is added to 2 L of unbuffered water. What is the final pH? How many grams of hydrochloric acid are needed to neutralize a 1L solution of water at pH 13.2? Estimate the pH of water that contains 23 mg/L of ammonium (NH_4^+). Assume that [H+] = [NH_3] at equilibrium and that there is no gas exchange. pK_a = 9.3.
2. What is the PCO2 and CO3 (aq) concentration of a 5 °C ground water sample with pH= 6.5, and 50 mg L HCO; (aq)? 3. In 1960 the average concentration of CO2(g) is 316.91 ppm. What was the pH of acid rain then. 4. Henry's constant for CO2(g) decreases with temperature, and therefore the solubility of CO2(g) also decreases with temperature. Use enthalpy data at 25 °C and Le Chatelier's principle to explain why and how equilibrium shifts with...
Please help with solving Question 1 (A-C) Thank you!
Unless otherwise specified in the problem, you may assume that all solutions are at 25°C. 1. 50.0 mL of a pH 6.00 carbonic acid buffer is titrated with 0.2857 M NaOH, requiring 17.47 mL to reach the second equivalence point. a. Calculate the molarity of carbonic acid and bicarbonate in the original buffer. Carbonic acid: Bicarbonate: b. Calculate the pH of the solution after a total of 100.0 mL of 0.2857...
1)I need introduction will be different from this introduction
but in the same subject and the same idea (with littel
different)
2)Select the discussion ,results ,conclusion , methods and
references from this search
INTERNATIONAL JOURNAL OF SCIENTIFIC& TECHNOLOGY RESEARCH VOLUME 2, ISSUE 9 SEPTEMBER 2013 ISSN 2277-8616 Dyes Removal From Textile Wastewater Using 1 PREFACE 2 MATERIALS AND METHODS the largest Bangladesh, the textile industry manufacturing industries. in every stage of textile industry 2.1 Sample and Adsorbents Collection various types...
Need answers. thank you
VOCABULARY BUILDER Misspelled Words Find the words below that are misspelled; circle them, and then correctly spell them in the spaces provided. Then fill in the blanks below with the correct vocabulary terms from the following list. amino acids digestion clectrolytes nutrients antioxident nutrition basal metabolic rate extracellulare oxydation calories fat-soluble presearvatives catalist glycogen processed foods cellulose homeostasis saturated fats major mineral coenzyeme trace minerals diaretics metabolism water-soluable 1. Artificial flavors, colors, and commonly added to...
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