What is the expected pH of a solution when you dissolve 20 mmoles of Na2HPO4 in 100 mL of MilliQ water? (Answer with twodecimal places)pK₂ values for phosphate: 2.15, 6.80 and 12.37

Answered: Image /qna-images/answer/e3b3ae55-90fb-47f0-a117-8dc2fa0a4641.jpg

Answered: What is the expected pH of a solution…

What is the expected pH of a solution when you dissolve 20 mmoles of Na₂HPO4 in 100 mL of MilliQ water? (Answer with two decimal places) pK₂ values for phosphate: 2.15, 6.80 and 12.37

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter10: Effect Of Electrolytes On Chemical Equilibria

Section: Chapter Questions

Problem 10.3QAP

See similar textbooks

Related questions

Q: На HO A) (В) C) -R 11!!!! нужн 1888

Q: 2-chloro-5-nitrobenzoic You wanted to produce acid. For that purpose, you started the reaction with…

Q: Balance the following chemical equation: Pb(NO3)2 (aq) + NaI (aq) ⟶ PbI2 (s) + NaNO3 (aq) If…

A: Given : Mass of lead(II) nitrate = 5.2 grams Mass of sodium iodide = 45.0 grams

Q: compounds: A) CH3- B) CH3- C) H- CH3 CH- -CH- Give a correct IUPAC name for each of the following…

Q: 3 1 1 1 1 Part 1: Convert units of volume. In chemistry, volume is usually reported in units of…

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any…

Q: | NaOH IN 25x10³ Q3: In a carbonate mixture containing HCO, CO², and NaOH, either alone or…

Q: Draw the expected product(s). Consider whether a racemic mixture is expected, and if so, make sure…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: The specific heat of ice is 2.100 kJ/kg °C, the heat of fusion for ice at 0°C is 333.7 kJ/kg, the…

Q: 11. REACTIONS A. product/s. HS -CI CH₂CH₂ HC. Draw the structure of the missing reactant/s, reaction…

A: The structure of the major products in the given reactions are show below as ;

Q: A certain catalyzed reaction is known to have an activation energy E= 74.0 kJ/mol. Furthermore, the…

A: •Since you have posted multiple questions so we are answering first question for remaining question…

Q: A sample of SrF₂ (Ksp = 4.33 x 10¹9) is dissolved in 0.025 M AIF3 solution. Calculate: a. Solubility…

Q: The solubility of a salt at 50•c is 64g salt per 100 of water. Which solution below would be…

A: Given the solubility of the salt at 50 oC = 64 g salt / 100 g water A solution is saturated when the…

Q: 7. 8. Provide the complete mechanism using Curved Arrow Formalism for the reaction of the molecule…

A: The answer is as follows: The following reaction is referred as electrophilic substitution of…

Q: Glutathione (or GSH) can form a disulfide bridge with another glutathione molecule via radical…

Q: In an electrolytic cell, does the reaction of electrolysis of water take place in a standard state?

A: Here we to explain whether the reaction of elctrolysis of water takes place in standard state or…

Q: Which molecule contains the smallest bond angle? O they all have the same bond angle O BeF2 O KrF2 O…

A: Since, For determination of bond angle, first determine the shape of the molecule using VSEPR…

Q: In the ideal gas experiment, the students forgot to record the equilibrium temperature after…

Q: A student is trying to determine the concentration of an acetic acid (HC2H3O2) solution. They place…

A: Given →Volume of acetic acid (HC2H3O2) solution = 10.00 mL Volume of NaOH = 22.31 mL…

Q: Choose from A - E the term that best describes the isomeric relationship for each of the following…

A: Given compounds are : What is the relationship between the two compounds ? Options are : A.…

Q: What are the two functional groups in the photo below?

A: The organic compound is formed by two main elements, carbon, and hydrogen. The specific group of…

Q: Potassium chloride has a solubility of 43 g of KCl in 100 g of H₂O at 50 °C.Determine if each of the…

Q: Arrange the following compounds in increasing reactivity with SN1 mechanism. Type the letter labels…

A: Here we are required to arrange the compound in the increasing order of reactivity toward SN1…

Q: Choose from A - E the term that best describes the isomeric relationship for each of the following…

A: we need to determine the relationship between the given two structures

Q: H

Q: explain the presence of trans-9-(2-phenylethenyl anthracene) by wittig reaction. detail description…

Q: In EAS bromination reaction directly on aniline, there will be multiple products including ones in…

A: "Bromination reaction directly on aniline, there will be multiple products including ones in which…

Q: What is the percent composition of a solution in which 80 grams of sodium hydroxide, NaOH, is…

Q: Suppose you have just added 100.0 ml of a solution containing 0.5000 moles of acetic acid per liter…

Q: 3 1. AT 25°C, Kc is 5.84 x 10-5 for the dissociation of dinitrogen TetRoxide To nitrogen dioxide.…

Q: Which of the following IR frequencies would be expected for benzaldehyde? Select all that apply.…

Q: Order in terms of increasing ph the relative oh when 1 mole of the substances is dissolved CN-,…

A: Here we have to determine the increasing order of pH if 1 mole each of CN1-, HNO3, RbOH, CH3COOH are…

Q: Balance the following redox equation by the ion-electron method: 2+ H₂O₂ + Fe²+ →Fe M 3+ + H₂O (in…

A: Redox reactions are those in which both oxidation and reduction reaction occurs simultaneously.

Q: w) H₂C i 25 H₂C- HBr (2 equiv) CH₂C-OH + CO₂ CH,MgBr 1) BULI D₂0 2) H₂C=CH₂

Q: A galvanic cell is powered by the following redox reaction: HNO₂(aq) + H(aq) + Fe²* (aq) 3+ NO(g) +…

Q: In experiment 8, a student observed that solid iodine dissolved in water almost completely. What…

A: Ans. Option (d) is correct. When iodine is dissolved in a non-polar solution( e.g. water), it…

Q: What series of reaction should be done to come up with the desired product? Refer to the reaction…

Q: Does your melting point obtained for your product indicate that your sample is indeed benzoin or…

A: By matching the literature and obtained value one can consider the product. The literature value of…

Q: structure 2 AICI 人! AICI structure 1 CI Acidic KMnO, COOH CO₂

A: Benzene shows electrophilic substitution reaction and it shows Friedel-Crafts alkylation as well as…

Q: 1. Give the IUPAC name for the following compounds. a) b) 6

A: According to IUPAC nomenclature is an organic compound is named by identifying molecule's longest…

Q: P 1 atm 95.4°C Monoclinic Rhombic Sulfur 153°C, 1420 atm 115.21°C 115.2°C, 3.2 x 10-5 atm 95.3°C,…

A: Disclaimer As you have asked only for the part IVth and Vth of the given question. So according to…

Q: Seconds (s) Tap H2O Temp (°C) Salt Solution (+ 2.5 mL salt) Temp (°C) Salt…

A: Freezing point temperature is the temperature when liquid phase and solid phase of the substance…

Q: weak acid has a pKa of 7.58. What is the proportion of A- to HA if pH is 9.42? Round to one decimal…

Q: In 1999, ClO+, a potential contributor to ozone depletion, was isolated in the laboratory. Using a…

A: In MO theory Bond order is calculated by using following formula Bond order= (no. of electrons in…

Q: What would the hydroxide ion concentration be if the hydrogen ion concentration was 1 x 10-3 M?

Q: QUESTION 11 If you were to mix 500 mL of 1.00 x 103 M CaCl₂ with 50.0 mL of 5.00 x 104 M NaF, would…

Q: Which of the following is/are the structure(s) for the product(s) of the reaction below? COOH HNO3…

Q: Differentiate the properties of hydrogen bonding compared to simple dipole-dipole interaction

A: Differentiate the properties of hydrogen bonding compared to simple dipole-dipole interaction :

Q: HCI (excess)

Q: Calculate the molarity of the following solutions. Part A Calculate the molarity of 0.900 mol of…

Q: Consider the reaction at 25 oC: 4NO(g)2N2O(g)+O2(g) Calculate ΔGo for the system at equilibrium…

Concept explainers

Environmental Pollution

Environmental pollution occurs due to some unwanted alteration in the surroundings which results in unfavorable effects on all organisms of that surrounding.

Question

100%

What is the expected pH of a solution when you dissolve 20 mmoles of Na2HPO4 in 100 mL of MilliQ water? (Answer with two
decimal places)
pK₂ values for phosphate: 2.15, 6.80 and 12.37

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Salts containing the phosphate ion are added to municipalwater supplies to prevent the corrosion of lead pipes. (a) Basedon the pKa values for phosphoric acid (pKa1 = 7.5 x 10 - 3,pKa2 = 6.2 x 10 - 8, pKa3 = 4.2 x 10 - 13) what is the Kbvalue for the PO43 - ion? (b) What is the pH of a 1 x 10 -3 M solution of Na3PO4 (you can ignore the formation ofH2PO4- and H3PO4)?
4. (a) Calculate [H3O*] and [OH] for the solutions indicated: lemon juice, pH = 2.42 (1) (ii) household ammonia pH = 11.21 (iii) (iv) (v) phosphate buffer pH = 6.96 human urine pOH = 7.8 tomato juice pOH = 9.9
What is the pH of a solution that is a prepared by dissolving 4.90 g of (NH4)2SO4 ( K₁ (NH4+) = 5.70 × 10-¹0) in water, adding 150.0 mL of 0.1263 M NaOH, and diluting to 900.0 mL? pH = b0.124 M in piperidine and 0.054 M in its chloride salt ( Ka (C5H₁1NH+) = 7.50 × 10−¹² )? -12 pH = C prepared by dissolving 2.12 g of aniline (93.13 g/mol, Ką (anilinium ion) = 2.51 × 10−5) in 100. mL of 0.0330 M HCl and diluting to 500.0 mL? pH =
What is the pH of a solution of 0.400 M CH3NH₂ containing 0.130 M CH3NH3l? (Kb of CH3NH₂ is 4.4 x 10-4)
How many grams of acid are needed to prepare a 0.1 M 100 mL phosphate buffer solution with a pH of 7.4? (Use sodium salt in the calculations, Na:23 g/mol, O:16 g/mol, P:31g/mol ; H:1g/mol ; pK1: 2.14 ; pK2:7.2 ; pK3: 12.3 ).
10) What is the pK of a weak acid with a Kof 4.7 X 10“?
What is the pH of a 0.349 M C6H5CO2H M solution if the Ka of C6H5CO2H is 6.5 x 10-5?
(f) Calculate the pH of the following solutions: (i) A 0.045 M solution of sulphuric acid. (ii) A solution containing 0.4 g sodium hydroxide in 100 cm³ water. (iii) Given the Ka value for CH3COOH is 1.8 x 10-5, calculate the pH of the acid. The initial concentration of the acid is 0.2 M
A weak acid solution with concentration 0.020 M has a pH of 3.7, what is the pKa of this acid?
Given that pK₂ = 3.14 at 25 °C for HNO₂, what is the pH of 0.165 mol L-1 NaNO₂(aq) at 25 °C? What is the equilibrium concentration of HNO₂? pH = Number (Give your answer accurate to 2 decimal places.) Number mol L-¹ (Give your answer accurate to 2 signficant [HNO₂]eq figures.) =
What is the pKb of an unknown weak acid if the pH of the solution was measured to be 4.52. when [HA]=0.540 and [A-]=0.580.
(2) When ammonium sulfate dissolves, both the anion and cation have acid-base reaction: (NH4)2SO4(s)< 2NH4* + SO4²- NH4* + NH3(aq) + H* SO42- + H2O → HSO4 + OH- Ksp = 276 Ka = 5.70 ×10-10 Кь 3 9.80 х 10-13 (a) (b) (c) (Show your Calculation) Write a charge balance for this system. Write a mass balance for this system. Find the concentration of NH3(aq) if the pH is fixed at 9.25.