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Concentration Homework. Unanswered If someone uses the immobiline 4-acrylamido butyric acid (pKa = 4.6) to create...
just the first question about the OH-, included second photo for question info Hydroxide ions Homework...
just the first question about the OH-, included second photo for
question info
Hydroxide ions Homework • Unanswered Estimate the molar concentration of hydroxide ions OH in vinegar. Enter your answer using this type of scientific notation: X.XEY Numeric Answer: The concentration of acetic acid (CH3COOH) in common vinegar is close to 1M. Not all the molecules of this acid react with water molecules and produce H3O+ ions. In fact, only around 4 per every 1000 molecules of acetic acid...
The concentration of acetic acid (CH3COOH) in common vinegar is close to 1M. Not all the...
The concentration of acetic acid (CH3COOH) in common vinegar is close to 1M. Not all the molecules of this acid react with water molecules and produce H3O+ ions. In fact, only around 4 per every 1000 molecules of acetic acid dissociate. Hydronium ions Homework • Unanswered Estimate the molar concentration of hydronium ions H307 in vinegar. Enter your answer using this type of scientific notation: X.XEY Numeric Answer:
Diprotic acid (H2A), Part II (Homework) Homework. Unanswered For carbonic acid, Kail = 4,5 x 10-7. What is t...
Diprotic acid (H2A), Part II (Homework) Homework. Unanswered For carbonic acid, Kail = 4,5 x 10-7. What is the (HCO3-) in a 0.10 M carbonic acid solution? Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimale.g, 2.5E5 for 2.5 x 10" Numeric Answer: Unanswered * Submit Diprotic Acid (H2A), Part 1 (Homework) Homework . Unanswered For carbonic acid, Kal = 4.5x 10-7. What is the pH of a 0.10...
answer with two sig figs scientific notation QB 15.10 Level 1 Homework. Unanswered In an aqueous...
answer with two sig figs scientific notation
QB 15.10 Level 1 Homework. Unanswered In an aqueous solution, if the [OH-] is 7.5E-9 M what is the [H30+)? 0 Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5E5 for 2.5 x 105) Numeric Answer: Unanswered . 2 attempts left Submit In an aqueous solution, if the [H3O+] is 7.1E-9 M what is the [OH-]? Respond with the correct...
Xtv /assigned/ Due Mar 22:15.5 Homework 6/16 answered Q15.26 Homework – Unanswered What is the pH...
Xtv /assigned/ Due Mar 22:15.5 Homework 6/16 answered Q15.26 Homework – Unanswered What is the pH of a 0.067 M solution of acetic acid, whose K_a=1.8 10^{-5}? Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimal e.g 2.5E5 for 2.5 x 10") Numeric Answer Unanswered - Submit
Homework - Unanswered What is the pH of a 0.00066 M solution of nitric acid (HNO3)?...
Homework - Unanswered What is the pH of a 0.00066 M solution of nitric acid (HNO3)? O A 6.6 O B 3.2 0 C 4.1 O D More information is needed to answer Unanswered Initial Concentration A Homework - Unanswered Distilled white vinegar is used for cooking but can also be used in many applications for cleaning. The
Kb Homework • Unanswered The pKy of ephedrine, a pharmaceutical drug, is 4.64. What is the...
Kb Homework • Unanswered The pKy of ephedrine, a pharmaceutical drug, is 4.64. What is the value of the equilibrium constant Ky for this base? Enter your answer using this type of scientific notation: X.XEY Numeric Answer: 1E-5 22222222222222222222 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - = = = = = = = = =...
Be sure to answer all parts. The pH of an aqueous acid solution is 6.24 at...
Be sure to answer all parts. The pH of an aqueous acid solution is 6.24 at 25°C. Calculate the Ka for the acid. The initial acid concentration is 0.010 M. × 10 (Enter your answer in scientific notation.)
what concentration of acetic acid (pka=4.76) and acetate would be required to prepare a .15 M...
what concentration of acetic acid (pka=4.76) and acetate would be
required to prepare a .15 M buffer solution at pH 5.0?
What concentrations of acetic acid (pKa = 4.76) and acetate would be required to prepare a 0.15 M buffer solution at pH 5.07 Note that the concentration, the pH, or both values may differ from that in the first question. Strategy 1. Rearrange the Henderson-Hasselbalch equation to solve for the ratio of base (acetate) to acid (acetic acid). (AVHA)....
Question 3 4 pts What must be the minimum concentration of hydrocyanic acid in 1.00L buffer...
Question 3 4 pts What must be the minimum concentration of hydrocyanic acid in 1.00L buffer solution of a pH 9.13 hydrocyanic acid/sodium cyanide buffer if the pH changes by 0.20 units when 0.011 moles HCl are added? Click here for the table of lonization Constants of Weak Acids. Provide the answer with 3 decimal places. DO NOT use the scientific notation. Question 4 4 pts The pH of a 25.0 mL sample of a buffer changed by one unit...
just the first question about the OH-, included second photo for
question info
Hydroxide ions Homework • Unanswered Estimate the molar concentration of hydroxide ions OH in vinegar. Enter your answer using this type of scientific notation: X.XEY Numeric Answer: The concentration of acetic acid (CH3COOH) in common vinegar is close to 1M. Not all the molecules of this acid react with water molecules and produce H3O+ ions. In fact, only around 4 per every 1000 molecules of acetic acid...
The concentration of acetic acid (CH3COOH) in common vinegar is close to 1M. Not all the molecules of this acid react with water molecules and produce H3O+ ions. In fact, only around 4 per every 1000 molecules of acetic acid dissociate. Hydronium ions Homework • Unanswered Estimate the molar concentration of hydronium ions H307 in vinegar. Enter your answer using this type of scientific notation: X.XEY Numeric Answer:
Diprotic acid (H2A), Part II (Homework) Homework. Unanswered For carbonic acid, Kail = 4,5 x 10-7. What is the (HCO3-) in a 0.10 M carbonic acid solution? Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimale.g, 2.5E5 for 2.5 x 10" Numeric Answer: Unanswered * Submit Diprotic Acid (H2A), Part 1 (Homework) Homework . Unanswered For carbonic acid, Kal = 4.5x 10-7. What is the pH of a 0.10...
answer with two sig figs scientific notation
QB 15.10 Level 1 Homework. Unanswered In an aqueous solution, if the [OH-] is 7.5E-9 M what is the [H30+)? 0 Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5E5 for 2.5 x 105) Numeric Answer: Unanswered . 2 attempts left Submit In an aqueous solution, if the [H3O+] is 7.1E-9 M what is the [OH-]? Respond with the correct...
Xtv /assigned/ Due Mar 22:15.5 Homework 6/16 answered Q15.26 Homework – Unanswered What is the pH of a 0.067 M solution of acetic acid, whose K_a=1.8 10^{-5}? Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimal e.g 2.5E5 for 2.5 x 10") Numeric Answer Unanswered - Submit
Homework - Unanswered What is the pH of a 0.00066 M solution of nitric acid (HNO3)? O A 6.6 O B 3.2 0 C 4.1 O D More information is needed to answer Unanswered Initial Concentration A Homework - Unanswered Distilled white vinegar is used for cooking but can also be used in many applications for cleaning. The
Kb Homework • Unanswered The pKy of ephedrine, a pharmaceutical drug, is 4.64. What is the value of the equilibrium constant Ky for this base? Enter your answer using this type of scientific notation: X.XEY Numeric Answer: 1E-5 22222222222222222222 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - = = = = = = = = =...
what concentration of acetic acid (pka=4.76) and acetate would be
required to prepare a .15 M buffer solution at pH 5.0?
What concentrations of acetic acid (pKa = 4.76) and acetate would be required to prepare a 0.15 M buffer solution at pH 5.07 Note that the concentration, the pH, or both values may differ from that in the first question. Strategy 1. Rearrange the Henderson-Hasselbalch equation to solve for the ratio of base (acetate) to acid (acetic acid). (AVHA)....
Question 3 4 pts What must be the minimum concentration of hydrocyanic acid in 1.00L buffer solution of a pH 9.13 hydrocyanic acid/sodium cyanide buffer if the pH changes by 0.20 units when 0.011 moles HCl are added? Click here for the table of lonization Constants of Weak Acids. Provide the answer with 3 decimal places. DO NOT use the scientific notation. Question 4 4 pts The pH of a 25.0 mL sample of a buffer changed by one unit...
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