The pKo1 of carbonic acid (H2CO3) is 6.36. Calculate pH and the concentration of all species at equilibrium (H3O*, HCO,", and H2CO3) from an initial concentration of 0.175 M H2CO3.
Q: Write all the species (except water) that are present in a phosphoric acid solution. Indicate which…
A:
Q: Calculate the pH of water at 25°C and 75°C. The values for pKw at these temperatures are 13.99 and…
A: Pure water has an equal concentration of hydrogen ions and hydroxyl ions. The dissociation of water…
Q: Carbon dioxide in the atmosphere dissolves in raindrops toproduce carbonic acid (H2CO3), causing the…
A: To find the range of [H+] and [OH-] in the raindrops can be given by- Since, Product of the both…
Q: Give examples of species which donot behave as Lewis acid or Lewid base?
A: Electron pair acceptors are known as Lewis acid. They are electrophilic in nature that means they…
Q: neutral 5te millk of magresia has a pH of 10, the solutian is ünich of the AHOWing? fottowi heakly…
A: pH of the solution determines the strength of acidity/ basicity of the solution. It is equal to the…
Q: Please help, this is not a graded question
A: The base in any reaction can be easily identified by its nature of accepting H+ ions released by…
Q: What is the pH of a solution with OH- of 0.00015 M KOH at 25°C. Give the answer in 2 significant…
A: Given :- concentration of KOH = 0.00015 M To calculate :- pH of the solution Nature if solution
Q: Based on their compositions and structures and on conjugateacid–base relationships, select the…
A: An acid is a substance that gives H+ ions in its solution whereas a basic substance gives OH- ions…
Q: what is the pH when the H3O concentration is 0.0003M?
A: The pH of a solution can be calculated as given below.
Q: A student prepared a 0.10 M solution of formic acid (HCOOH) and found its pH at 25 °C to be 2.38.…
A: Consider the ionization of formic acid, HCOOH as below. The acid ionization constant, Ka of HCOOH is…
Q: The acid dissociation Ka of acetic acid HCH3CO2 is ×1.810−5. Calculate the pH of a ×6.610−1M aqueous…
A: The dissociation of acetic acid can be given as
Q: Rank the following in terms of basicity (base strength) from strongest to weakest, at 25 °C. Assume…
A: Strongest base: CH3NH2 Middle base: NaCN, Weakest base: NaCl
Q: The pH of a 0.17 M solution of propanoic acid (HC3H;O2 is measured to be 2.81. Calculate the acid…
A: The dissociation reaction is given by HC3H5O2 ----> H+ + C3H5O2- hence we can say that the H+…
Q: Lactic acid (HC3H5O3) has one acidic hydrogen. A 0.10 M solution of lactic acid has a pH of 2.44.…
A: Given data is as follows: The concentration of lactic acid = 0.10 M The pH of the solution = 2.44 Ka…
Q: The value of Ka for hypochlorous acid is 3.50x10-8. What is the value of Kb, for its conjugate base,…
A: The dissociation of the hypochlorous acid takes place as follows: HClO + H2O → H3O+ + ClO-
Q: An aqueous solution at 25 °C has a pH of 7.13. Calculate the pOH. Round your answer to 2 decimal…
A: • The values provided in the question are:- i) pH of a solution = 7.13 • We need to…
Q: |Calculate the pH of a 18 M NH,Cl(aq) (ammonium chloride salt of ammonia) at 25°C. The base…
A: The given chemical reaction is: NH4+aq + H2Ol ⇔ NH3aq + H3O+aq The given information is: Conc. of…
Q: Give the conjugate acid of S2. write it ignoring super and subscripts (so, HPO42 would be HPO42- or…
A: Conjugate acid is a type of acid when base abstract the proton. The water (base) abstract the…
Q: Draw the Lewis structure of aminomethanol (HOCH2NH2) and encircle all atoms that enable the molecule…
A: We have to make Lewis stricture of aminomethanol
Q: Acetonitrile (CH3CN) has a pKa of 25, making it more acidic than many other compounds having only C…
A: The molecular formula of acetonitrile is CH3CN. The Lewis structure is represented as follows:
Q: Ethylamine (C2H5NH2) has a Kb value of 4.5x10–4. Calculate the pH of a solution that is 0.00789 M…
A: Interpretation - To calculate the pH value of the 0.00789 M ethylamine solution when ethylamine…
Q: Methylamine, CH3NH2, is a weak base. A 0.72 M aqueous solution of methylamine has a pH of 12.20.…
A:
Q: The conjugate acid and base of [HPO4]?- are, respectively: O [H2PO4]¯ and [PO4]³- O H3PO4 and…
A: Given Species -: [HPO4]2- A conjugate base is defined as the species formed by the loss of proton…
Q: Ascorbic acid (vitamin C) is a diprotic acid, H2CgHg06. Calculate [H*], pH, and [C&H,0,²] in a 0.12…
A:
Q: Calculate the expected pH of a 0.00046 M solution of the strong acid HNO3 Report to 2 decimal…
A: Since HNO3 is a strong acid Strong acid in aq. solution dissociates completely. 0.00046 M HNO3 on…
Q: HZ is a weak acid. An aqueous solution of HZ is prepared by dissolving 0.020 mol of HZ in sufficient…
A:
Q: Question 25 of 40 Consider the reaction below. Which of the following species represent a conjugate…
A: According to Bronsted‐Lowry's concept acids donate protonand bases accept proton and gives…
Q: The pKw of seawater at 25°C is 13.776. This differs fromthe usual pKw of 14.00 at this temperature…
A: Given data contains, pKw of seawater is 13.776. pH in seawater is 8.00. Actual pKw of water is…
Q: If solution A had a H+concentration of 10−8M, what wouldbe its pH? If solution B had 1,000 times…
A: The pH of any compound can be calculated on the basis of the concentration of hydronium ions present…
Q: Phenol, C6H5OH, has a Ka of 1.3 * 10-10. Calculate Kb for phenol’s conjugate base.
A: The calculation is as shown below:
Q: The pH of a 0.98M solution of propanoic acid (HC,H,O,) is measured to be 2.43. Calculate the acid…
A: c = 0.98 M pH = 2.43
Q: The pH of a 1.3 M solution of hexanoic acid (HC,H102) is measured to be 2.37. Calculate the acid…
A: Given, Concentration of hexanoic acid = 1.3M pH = 2.37 Acid dissociation constant (Ka) = ? To get…
Q: How many moles of NO3- are present in 250.0mL of a nitric acid solution having a pH of 5.10?
A:
Q: A solution is prepared at 25 °C that is initially 0.41M in chlorous acid (HCIO, ), a weak acid with…
A: The mixture of a weak acid and its salt makes a buffer solution. The pH of a buffer is calculated…
Q: Calculate the pH at 25 °C of a 0.15M solution of lidocaine HCl (C14H2, NONH,CI). Note that lidocaine…
A: In this question, we want to determine the pH of the solution. You can see the calculation steps…
Q: Sulfurous acid (H2SO3) is a diprotic acid with ?a1=1.39×10^(−2) and ?a2=6.73×10^(−8). Determine the…
A:
Q: Express the pH of the solution ot three decimal places. 20.00 mL of 1.20 M HCl diluted to 0.570 L
A: Initial concentration, M1 = 1.20 M Initial volume, V1 = 20.00 mL Final volume, V2 = 0.570 L = 570 mL
Q: What is the value of Kb, for its conjugate base, C6H5O-?
A:
Q: The pH of a 1.3 M solution of hydrocyanic acid (HCN) is measured to be 4.55. Calculate the acid…
A: The acid dissociation constant (Ka) is a quantitative measurement of the acid strength of the…
Q: A solution Is prepared at 25 °C that Is Initlally 0.38M In nitrous acid (HNO,), a weak acid with K=…
A:
Q: State the stpes to Draw a Conjugate Acid and a Conjugate Base ?
A: A conjugate base of a compound will have the ability to accept a proton whereas, the conjugate acid…
Q: What is the conjugate base of HClO4, H2S, PH4 +, HCO3 - ?
A:
Q: What is the pH of a solution with OH- of 0.0001 M KOH at 25°C. Give the answer in 2 significant…
A: Question 2. Concentration of KOH = 0.0001 M To be calculated :- pH of solution Nature of…
Q: When lithium oxide (Li2O) is dissolved in water, the solutionturns basic from the reaction of the…
A: According to Arrhenius concept, bases are those that can release OH- ions in aqueous solution. When…
Q: Calculate the pH at 25 °C of a 0.72M solution of lidocaine HCI (C4H2,NONH,CI). Note that lidocaine…
A: The value of pKb for the given weak base is = 7.94 The concentration of the base solution is = 0.72…
Q: . Calculate the pH of a solution in which the con- centration of the piperidine is (a) 1.00 × 10-'…
A:
Q: The pH of a l1.1 M solution of hydrocyanic acid (HCN) is measured to be 4.58. Calculate the acid…
A: Since HCN is a weak monoprotic acid. hence it will dissociate partially as per the reaction HCN…
Q: Iodic acid, HIO3, has a pK, of 0.77. What is the formula of its conjugate base? O H2IO3+ O HIO3 O OH…
A: Interpretation - To determine the conjugate base of iodic acid ( HIO3 ) . To determine the value of…
Q: For the reaction H2CO3 + H2O ↔ H3O+ + HCO3-, H3O+ is the conjugate base.
A: Conjugate acid and base pair- The pair of substance which can be formed one another by the gain or…
Q: At 25∘C, a pH of 3.2 corresponds to a pOH of:
A:
Please help?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- When 0.1000mol of an unknown acid, represented by HA, are dissolved in enough water to make 1.000L of solution the resulting pH is 2.20. Calculate the value of Ka for HA. Calculate the pH of a solution made from dissolving 0.100mol of acetic acid (HC2H3O2) in enough water to make a 1.00L solution. The Ka of formic acid (HCHO2) is 1.7x10-4. Calculate Kb of the formate ion, CHO2- Determine the pH of a 1.0M solution of (CH3)3NHCl. Kb =6.3x10-5 for trimethylamine, (CH3)3N.Calculate the pH at 25°C of a 0.64M solution of anilinium chloride C6H5NH3Cl. Note that aniline C6H5NH2 is a weak base with a pKb of 4.87.The pKa of acetic acid (CH3COOH) is 4.76. If a solution of acetic acid is at a pH of 6.56, the ratio of conjugate base to acid is _____________.
- A site in Pennsylvania receives a total annual deposition of 2.688 g/m² of sulfate from fertilizer and acid rain. The ratio bymass of ammonium sulfate/ammonium bisulfate/sulfuric acid is 3.0/5.5/1.0. (a) How much acid, expressed as kg of sulfuric acid,is deposited over an area of 10. km²? (b) How many pounds of CaCO₃ are needed to neutralize this acid? (c) If 10. km² is the area of an unpolluted lake 3 m deep and there is no loss of acid,what pH would be attained in the year? (Assume constant volume.)Please calculate the pKa of hydrofluoric acid given that HF(aq) and hydrogen cyanide (HCN). HF(aq): -273.30 Δ H^0 f kJ mol^-1 HCN (aq): 107.1 ΔH^0 f kJ mol^-1 119.7 ΔG^0 f kJ mol^-1 (a) pKa of hydrofluoric acid and hydrogen cyanide (HCN)? (b) What would be the pH of a solution containing 5 mM HF? (c) What would be the pH of a solution containing 5 mM HCN?6 a) A proportion of fentanyl is known to be lost to IV infusion bags made from PVC on storage and this effect is known to be pH dependent. Explain why you believe this effect occurs and what potentially could be done to minimise loss of fentanyl to the PVC packaging
- The simplest amino acid is glycine ( molar mass = 75.1 g/mol), whose structure is shown above. An aqueous solution of glycine is prepared by dissolving 0.329 g in 150 mL of water at a temperature of 25 C. The resulting solution has a pH of 2.02. Calculate the molarity of the solution. Calculate the percent ionization of this solution of glycine. Calculate the Ka for glycine. Glycine is water soluble. On a structural formula like the one above, draw one water molecule that shows how glycine and water can form hydrogen bonds with each other.The Kb of carbonate is 1.8×10−4. Calculate the Ka of its conjugate acid.Calculate the pH of a solution prepared by dissolving 0.270 mol of formic acid (HCO2H) and 0.230 mol of sodium formate (NaCO2H) in water sufficient to yield 1.00 L of solution. The Ka of formic acid is 1.77 ⋅ 10-4. A 2.099 B 3.952 C 3.682 D 2.307 E 10.318
- In calculating pH by ICE method of 0.015 M CH2FCOOH (Ka CH2FCOOH = 2.6 x10-3), the change in CH2FCOOH can not be neglected because. a. Acid Dissociation constant, Ka, has a negative exponent. b. pH is not within +/- pka unit of pka of CH2FCOOH c. initial CH2FCOOH concentration is less than 0.1 M d. dissociation of [CH2FCOOH] will be more than 5% of initial [CH2FCOOH] ----------- To protect corrosion of materials made of iron, the surface of the iron material is electroplated with another metal. Given below information, which metal will be best to “galvanize” the material ? O2 + H2O + 2e- -> 4OH-(aq) .... E0 = 0.401 v Fe2+(g) + 2e- - -> Fe ............ E0 =(-) 0.440 v Cu2+(g) + 2e- - -> Cu ...........E0 = 0.337 v Ni2+(g) + 2e- - -> Ni ............ E0 = (-)0.250 v Zn2+(g) + 2e- - -> Zn ............ E0 =(-) 0.763 v a. Zn b. Ni c. Cu d. Fe2+ ------------ Given : C (s) + H2O(g) <-> CO(g) + H2(g) Which of the following will shift equilibria to form…If enough of a monoprotic acid is dissolved in water to produce a 0.0124 M solution with a pH of 6.72, what is the equilibrium constant, p?a, for the acid? kindly consider the following when answering the question For weak acids that are so dilute or so weak that the pH of the solution lies between 6 and 7, the autoprotolysis of water must be taken into account when determining the p?a value. At equilibrium, there are four species in solution, the weak acid, HA, its conjugate, A−, H3O+, and OH−. Start by developing four equations that describe what is occurring in the solution at equilibrium.3. The pH of an acid solution is 6.20. Calculate the Ka for the acid. The initial acid concentration is 0.010 M. 4. What is the original molarity of a solution of formic acid (HCOOH) whose pH is 3.26 at equilibrium? 5. Calculate the percent ionization of benzoic acid having the following concentrations: (a) 0.20 M, (b) 0.00020 M. 6. Calculate the percent ionization of Ammonium hydroxide, NH4OH at the following concentrations: (a) 0.60 M, (b) 0.0046 M, (c) 0.00028 M. Comment on the trends. 7. A 0.040 M solution of a monoprotic acid (HA) is 14% ionized. Calculate the ionization constant, Kc of the acid.8. (a) Calculate the percent ionization of a 0.20 M solution of the monoprotic acetylsalicylic acid (aspirin) for which Ka = 3.0 x 10-4 .(b)The pH of gastric juice in the stomach of a certain individual is 1.00. After a few aspirin tablets have been swallowed, the concentration of acetylsalicylic acid in the stomach is 0.20M. Calculate the % ionization of the acid under these conditions.…