1. Please calculate the pH for each of the following if the pKa is 6.1: a. pCO, = 32 Total CO, = 45 b. pCO2 = 62 Total CO, = 23 c. pCO, = 54 Total CO, = 32
Q: 2. Aluminium sulphate (alum) is added to water with a pH of 7.2. Based on the reaction below,…
A: Formula:- PH=12 pKw - 12 pKb- 1210g C pKa of alum…
Q: A standard solution of silver nitrate was prepared by dissolving 6.503 g of pure AgNO3 in sufficient…
A: Part a) moles of AgNO3 = mass / molar mass = 6.503g AgNO3 /169.87 g/mol = 0.038 moles molar…
Q: 5.)Shortly after the dissolution of lead(IV) oxide, the dissolved Pb will react with water to form…
A: EPA is the Environmental Protection act. For environmental and sustainable welfare under EPA limits…
Q: The following solutions were prepared: Solution A: 0.01 mole of perchloric acid (HClO4) dissolved…
A: Given- Moles of HClO4 = 0.01 Volume of water = 1L Moles of ethylamine hydrochloride = 0.01 Volume…
Q: Calculate the pH of the solution after the addition of each of the given amounts of 0.0597 M HNO, to…
A: Since we only answer up to 3 sub parts, we'll answer the first three. Please resubmit the question…
Q: Calculate AG° for the following reaction using AG°F values in your 2CH3OH(g) + 30O2(g) → 2CO2(g) +…
A: Given : We have to calculate the change in gibbs free energy for the reaction.
Q: When the reaction Cu+HNO3 ----->Cu2++NO+H2O is balanced in acidic solution, the coefficient of Cu2+…
A: The given reaction is a redox reaction in which oxidation and reduction both take place…
Q: Calculate the pH for a mixture of one mole of benzoic acid and one mole of sodium benzoate. The pKa…
A:
Q: 4a) Explain how NaHCO, can act as both an acid and a base in aqueous chemical reactions. Use…
A: 4a) NaHCO3 can act as an acid and a base in aqueous chemical reactions. NaHCO3 is completely ionized…
Q: Use the References to access important values if needed for this question. Write a balanced net…
A: BaF2 (s) + H2SO4 (aq) ----> BaSO4 ( s) + 2HF (aq) On splitting out it...we have ; BaF2 (s) +…
Q: 2. Explain the difference between "ion product" and Kep. What conditions are necessary for the ion…
A: Ksp is solubility product constant is equlibrium constant for a solid substance dissolving in an…
Q: 7. Calculate the AG° for the reaction below. Fe2O3 (s) + 3CO (g) → 2Fe (s) + 3CO2 (g)
A: Explained as follows
Q: Hypochlorous acid,HCIO, has a pKa of 7.54. What are [H3O+], pH, [CIO-], [HCIO], and pOH in 0.115M…
A:
Q: A water sample contains only 0.00150 M of La3+. Calculate the maximum concentration of I03 which…
A: We need to find the solubility of La(IO3)3 compounds in the solution.
Q: Phosphoric (H,PO4) is a triprotic acid with pKa values of 2.12, 7.21, and 12.32. It is solution for…
A:
Q: 17. Potassium hydroxide, KOH reacts with hypochlorous acid, HCIO to produce potassium hypochlorate,…
A: Introduction: Dissoction is the breaking up of a compound into simpler constituents that are usually…
Q: 120 mg of codeine hydrochloride (CodHCl) is dissolved in 10.0 mL of water. Calculate the expected…
A: Since you have posted multiple completely unrelated questions, we are entitled to answer the first…
Q: The pH of a 0.02M solution of a weak acid was measure at 4.6 a. What is the [H+] in this solution?…
A: Given : pH = 4.6 Molar concentration of weak acid = 0.02 M
Q: Calculate the concentration of fluoride ions in a saturated solution of scandium(III) fluoride at 20…
A: The chemical equation can be given as follows: ScF3↔Sc3++3F- Ksp = 4.2×10-18 The expression for…
Q: For the following equation, when balanced in acidic conditions, what coefficient should be in front…
A: The given reaction is : Cr2O72- + Fe2+ -->Cr3+ + Fe3+ (acidic) The two half reactions are :…
Q: What is the pH of a boric acid buffer solution containing 0.18 mol/L of boric acid, НзВОз, and 0.12…
A: Introduction : We have to calculate pH of boric acid .
Q: Q: The Soluibility of GaC13 is 0.004M. What is the Ksp? * O 7E-9 O 9 E-9 O 4.7 E-10 O 2.8 E-9 O Does…
A: The solubility product is simply defined as the product of the concentration of ions in a saturated…
Q: s. Given the following selectivity data (kij) for this ISE, à Chat activity = concentration). erant…
A: Given: Econst=0.197 V0.5M Ca+,0.2MCa2+
Q: Calculate the PH and the POH FOR a solution that is ISM IN Hellz and .04M IN HALO₂, Heloz K; FOR…
A: HClO3(aq) is a strong acid, whereas HClO2(aq) is a weak acid with Ka = 1.1*10-2 Given [HClO3(aq)] =…
Q: Most PFAAS have extremely low pka values (< 1), while oceans and rivers tend to be slightly basic…
A:
Q: Aluminium sulphate (alum) is added to water with a pH of 7.2. Based on the reaction below,calculate…
A: The given reaction is the hydrolysis of the salt. The salt here is Al2 (SO4)3 which on hydrolysis…
Q: Consider a buffer solution that is 0.50 M in NH and 0.20 M in NH4Cl. For ammonia, pKp = 4.75.…
A:
Q: 1-For the reaction, 4 Cl- + Co(H2O)62+ CoCl42- + 6 H2O (color 1)…
A:
Q: Among 5 different species (VO,*, Vo2*, v³*, v²*, v), how many are stable in water under pH=0? Acidic…
A: This diagram ( at pH= 0) just give you with ordinary value only for conceptual basis.Here we can see…
Q: 2. Aluminium sulphate (alum) is added to water with a pH of 7.2. Based on the reaction below,…
A: Dose of the alum = 30 mg/mL = 0.030 g/L The concentration of alum solution was prepared in Al+3…
Q: When 2.8 g Co(NO3)2 is dissolved in 0.347 L of 0.44 M KOH, what are [Co2+], [Co(OH)42- ], and [OH-…
A: Given: Mass of Cobalt(II) nitrate= 2.8 g Volume= 0.347 L Molarity of KOH= 0.44 M
Q: A 0.045 0 M solution of HA is 0.60% dissociated. Find pKa for HA.
A: Given: 0.045M solution of HA is 0.60% dissociated. Dissociation eqn: HA → H+ + A- [H+] =[A-] =…
Q: Consider the titration of TRIS, a weak base, as you carried out in lab. The conjugate acid of TRIS,…
A: The relation of pKb of the base (TRIS) with pKa of conjugate acid (TRISH+) of the base (TRIS) is as…
Q: Hydrogen thiosulfite, HS2O2-, is a weak acid with pka= 6.97. A.) There are two sulfur atoms in…
A: A) On the basis of electronegativity difference, oxidation state of S1 is 0(zero) and oxidation…
Q: Water is in equilibrium with the atmosphere at pH of 6.5. If the partial pressure of carbon dioxide…
A: pH=-logH+H+=10-6.5
Q: A0.300 M solution of nitrous acid (HNO2) had a pH of 2.07. What is the Ka value for nitrous acid. 1.…
A: The molarity of a nitrous acid solution is = 0.300 M The pH of the solution is =2.07 The Ka value of…
Q: 1. A buffer solution made from HClO and KClO has a pH of 7.79 . If pKa for HClO is 7.46 , what is…
A:
Q: A buffered solution containing dissolved aniline, C,H,NH,, and aniline hydrochloride, C,H;NH;CI, has…
A:
Q: 5. Identify each salt solution as acidic, basic, or neutral. Support your answer. a. An aqueous…
A: Two questions based on acid-base concept that is to be accomplished.
Q: Calculate the pH at 25°C of a 0.68 M solution of potassium butanoate (KC3H7CO2). Note that butanoic…
A: Given, that the pKa of butanoic acid = 4.82 We have to calculate the pH of a 0.68 M solution of…
Q: What is the pH of a solution of 0.400 M CH₃NH₂ containing 0.220 M CH₃NH₃I? (Kb of CH₃NH₂ is 4.4 ×…
A: Henderson Hasselbalch equation. We can use pOH = pKb + log [salt] / [base]
Q: 4 jIn ovder to perjorm a anion exchange column at pH=+.0 buyer is required. Your lab deatles to use…
A: a) The pH of a buffer solution is given by Henderson-Hasselbalch equation. pH=pKa+log [A-][HA]
Q: Use the systematic treatment of equilibrium to calculate the concent of Ba2+ in acidic solution, if…
A: 1.BaSO4(s)→Ba2+ + SO42- Ksp=[Ba2+][SO42-] 2. SO42- +H2O→HSO4-+OH- Kb=HSO4-OH-SO42- 3. Ba2+ +…
Q: 3. Hypochlorous acid (HCIO) is a weak acid. A 1.00M aqueous solution of this acid gives has a pH of…
A: Recall the data, Molarity of HClO=1.00 M pH=3.77 pKa of HClO ?
Q: Write the reactions of EDTA in the ionization steps.
A: EDTA stands for - Ethylenediaminetetraacetic acid is polyprotic acid with 4 different ionization…
Q: hypochlorite. Addition of 0.167 moles of hydroiodic acid will: (Assume that the volume does not…
A: Buffer is the solution of mixture of weak acid/weak base with its salt of strong base/strong acid
Q: Calculate the alpha values for the diprotic acid, oxalic acid, for every 0.5 pH units from pH - 0.0…
A: To plot the distribution curve for the diprotic acid (Oxalic acid) for every 0.5 pH units from pH 0…
Q: What is the maximum [CO32-] that can exist in a solution of 7.1 x 10-7M AgBr?
A: [AgBr] = 7.1 x 10-7 M
Q: 2. (a) How would you compare the Lewis acidity of Fe2+ and Cu?+? (b) The measured pka values for…
A: Lewis acids are the species which accepts pair of electron and Lewis bases donate a pair of…
Q: If a solution of sodium dihydrogen phosphate (NaH2PO4) is dissolved in water at pH = 5 and 25°C, all…
A: Answer: Von't Hoff factor is represented as i. It is actually the ratio of experimental colligative…
Atomic Structure
The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.
Shape of the D Orbital
Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.
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- If the molar solubility of PbCrO4 at 25 oC is 5.48e-07 mol/L, what is the Ksp at this temperature?Ksp = (b) It is found that 1.08e-09 g of Fe(OH)3 dissolves per 100 mL of aqueous solution at 25 oC. Calculate the solubility-product constant for Fe(OH)3.Ksp = (c) The Ksp of Mg3(PO4)2 at 25 oC is 1.04e-24. What is the molar solubility of Mg3(PO4)2?solubility = mol/LCalculate the equilibrium concentration of N2O4 in 1.00 L of a solution prepared from 0.129 mol of N2O4 with chloroform as the solvent. (Assume that the change in concentration of N2O4 is small enough to be neglected).0.281 mol AgNO3 and 3.17 mol NH3 were added to enough water to give 1.00 L of solution at 25 °C. Calculate the equilibrium concentration of free silver ion, [Ag+], in this solution. The formation constant for Ag(NH3)2+ (Kf) = 1.50x107 at 25 °C. 0×100 M 2.75×10-9 M 7.18×10-9 M 2.24×10-9 M 4.97×10-9 M
- 2. The molar solubility of sulfathiazole (weak acid) in water is about 0.001 M. a. What is the lowest pH allowable for complete solubility of a 1% solution of sodium sulfathiazole? (Mw = 277) , pKa = 7.12 b. A 5% solution?Consider a biochemical reaction that is taking place in a 0.1 M buffer. The initial pH is 7.4, and the pKa of the buffer is 7.2. If, in a final reaction volume of 1.0 mL, 10 micromol of protons are generated, what would be the final pH of the solution?NOH2PO4 and Na2HPO4 For what ratio between the concentrations of the two substances above would the pH of the buffer solution be 7.10? (pka-7.21)
- Your research advisor asks you to prepare a buffer solution at pH = 12.5 with capacity of about 0.100 M. Given the following solutions available (of any concentration), determine possible concentrations of the best conjugate species for this solution. Acetic acid: The pKa = 4.74; hypochlorous acid: pKa = 2.06; methylamine: pKb = 3.36.The value of Ka for nitrous acid 1HNO22 at 25 °C is given in Appendix D. (a) Write the chemical equation for the equilibrium that corresponds to Ka.Lanthanum and other rare-earth compounds are used in carbon arc lighting, specifically in the film and television industry for studio lighting and projection. A student in CHEM 2102 was traying to precipitate La3+ as La(OH)3 starting from acidic solution of 0.010 M La3+. (Ksp value for La(OH)3 =2 x10-21) Suggest a chemical reagent that can be used to precipitate La3+as La(OH)3 At what pH the precipitation will occur
- The pH of a 0.02M solution of a weak acid was measure at 4.6 a. What is the [H+] in this solution?b. Calculate the acid dissociation constant Ka and pKa for this acid?In a laboratory experiment 50.00 cm3 of a solution originally 0.2 molar in CH3COOH was permitted to come in equilibrium with a 5.00-gram sample of charcoal. At equilibrium, 25.00 cm3 of the CH3COOH solution required 30.00 cm3 of 0.10 N NaOH for neutralization. Calculate the weight of CH3COOH adsorbed per gram of charcoal and the equilibrium concentration of the acid.The value of Ksp for Cd(OH)2 is 2.5 x 10-14. (a) Whatis the molar solubility of Cd1OH22? (b) The solubilityof Cd(OH)2can be increased through formation of thecomplex ion CdBr42 - (Kf = 5 x 103). If solid Cd(OH)2 isadded to a NaBr solution, what is the initial concentrationof NaBr needed to increase the molar solubility of Cd(OH)2to 1.0 x 10-3 mol/L?