Answered: A HCN - NaCN solution has o pOH of 8.…

A HCN - NaCN solution has o pOH of 8. The HCN concentration is 0.2F. Find the concentration of the NaCN. Ke (HCN) = 4x 10 10

General, Organic, and Biological Chemistry

7th Edition

ISBN:9781285853918

Author:H. Stephen Stoker

Publisher:H. Stephen Stoker

Chapter10: Acids, Bases, And Salts

Section: Chapter Questions

Problem 10.35EP: The HCl in a 0.10 M HCl solution is 100% dissociated. What are the molar concentrations of HCl,...

See similar textbooks

Related questions

Q: What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr203 wi...

A: The given reaction is 2Al + Cr2O3 --------> Al2O3 + 2Cr The reaction indicates that 2 mole o...

Q: Calculate the pH of the following: (a) 500 ml of pure water (b) 15.0 mL of 2F hydrochloric acid add...

Q: me (Boyle's Law)

Q: Consider the problem below: (Equation 1) H2(g) + 1/2 O2(g) ---> H2OU) AH = -285.8 kJ/mol (Equation 2...

A: The enthalpy change is a state function and the Hess law states that the change of enthalpy in a che...

Q: Calculate the initial concentrations for all the solutions. The concentration of stock solutions are...

A: Concentrations of all solutions can be calculated using dilution law ...

Q: What is the total number of hydrogen atoms on the right-hand side of this chemical equation? 8 Al(s)...

A: Count number of H atom in right hand side ?

Q: Calculate the mass in grams of 0.45 moles of Be(ClO3)2.

A: Detail mathematical calculation is shown below

Q: Enter your answer in the provided box. The reaction between nitric oxide (NO) and oxygen to form nit...

A: First find the moles of NO2 and than from this find moles of O2 and finally the mass of O2.

Q: From Ch. 6: 1. Determine the molar mass of a gas if a sample weighing 0.603 g is collected in a flas...

Q: 14.00 mL of 0.10 M Ba(NO3)2 are added to 30.00 mL of 0.10 M Na,CO3 O a precipitate of BaCO3 will for...

A: The reaction between Barium nitrate ( BaNO32) and the sodium carbonate ( Na2CO3) is given by :- B...

Q: /hich of the following reactions will result in formation of a ketone? 1) 0=C=0 CA) MgBr 2) H3O* 1) ...

A: Given are organic reactions

Q: Which of the following is (are) meso? Br Br HN H Br Br Br H Br Br I II II IV O I O IV O Two of these...

A: ->Meso compounds are compound that have either center of symmetry (or) plane of symmetry (or) bot...

Q: 1. What is the weight of pyridine. CaHN that must be dissolved in 250 ml of solution to produce a hy...

Q: A gas initially at 67.0 °C and 3.75 atm is heated to 346 °C and the pressure is reduced to 2.68 atm....

Q: Which is a broader definition of acids and bases, Bronsted-Lowry or Lewis? Why? Provide examples to ...

A: Lewis acids - The Lewis acids are the species which accepts the electron pair during the acid - base...

Q: Cation Symbol & Anion Symbol & charge Compound Formula Name charge iron(III) chloride iron(II) sulfi...

Q: Calculate the average rate constant for the reaction.

Q: 1. Name each of the following compounds: a) Pbl2 b) NiS c) Fe(OH)2 d) Crz(CO3)з e) Al(ОН)з f) KNO3 g...

Q: 9). 10)

A: Given

Q: Which of the following statements is/are correct at 25 °C? 1. Benzoate (C,H,O2) requires a Ka to det...

A: To calculate the pH of weak acid and base we need their Ka and Kb values. Kb of lactate ion can be ...

Q: HI Br Br Br H Br Brи Ill

A: Concept 1) Enantiomers are the non superimposable mirror images to each other. 2) Diastereomers ar...

Q: 13.3 L scuba tank contains a mixture of nitrogen, oxygen, and argon. 72% is nitrogen, 4% is argon, w...

A: Recall the relation between partial pressure and mole fraction of gas Partial pressure = Mole frac...

Q: How many moles of Ba(OH)2 are present in 275 mL of 0.600 mol L-1 Ba(OH)2? Express your answer numeri...

A: Volume of Ba(OH) 2= 275 ml = 0.275 L Molarity of Ba(OH) 2 = 0.600 mol L —1

Q: A. b. Now consider the two molecules A. and B. Note that A. is a dianion and B. is a neutral molecul...

Q: Calculate the molar volume of methane at 300 K and 100 atm given that the second virial coefficient ...

A: Theoretically, the second virial coefficient represents bimolecular attraction forces, and the third...

Q: Experiment name: Effect of the ionic strength on solubility of benzoic acid in water. Q1) Discusion ...

A: Discussion: Benzoic acid, one of the most common aromatic acids, has a very low solubility in water....

Q: IDEAL GAS LAW a. A 50.0 L cylinder contains 21.8 g Hydrogen gas at 28 degrees C. What is the pressur...

A: Given, .a) A 50.0 L cylinder contains 21.8 g Hydrogen gas at 28 degrees C. The pressure (atm) exert...

Q: What types of elements undergo covalent bonding? a. a nonmetal and a metal b. two Group 1 elements c...

Q: Problem: CAH,NO IR: medium stretch at 2240 cm1 'H NMR 3 H 2 H 2 H 4 3 2 PPM 1 13C NMR 120 100 80 60 ...

A: Given data: Molecular formula = C4H7NO So, Degree of unsaturation = C-(H/2)+(N/2)+1 = 4-(7/2)+(1/2)...

Q: How is the term "organic" used among farmers and food stores today? Carbon's atomic number is six. W...

Q: sample of He occupies a volume of 213 mL at 132.3 kPa. What volume in ml would the gas occupy if the...

Q: A silver block, initially at 51.0 °C, is submerged into 100.0 grams of water at 25.3 °C in an insula...

A: q = m c ∆T q = Heat change in the reaction m = mass c = specific heat Ti = initial temperature Tf = ...

Q: 1. How much energy is required to change 2600 gram of ice at 0°C into water at the same temperature?...

Q: Write the condensed structure of the following: 4. Propyl Pentanoate 5. Pentanitrile

Q: Draw the Lewus structure for the following atoms and assign the correct number of valence electrons ...

Q: d. Calculate the Gibbs energy and the equilibrium constant for the denaturation of chymotrypsin at p...

A: Protein will be more stable in that form which is having more concentration at equilibrium.

Q: Consider the following reaction and the tabulated thermochemical data at 298 K. 4 NH32) + 5 O2g) → 6...

A: Answer: This question is based on the relationship between Gibbs free energy change, standard Gibbs ...

Q: An unknown pure solid was found to have a melting point (MP) of 1063 °C. Which of the following subs...

A: Given that, Melting point = 1063 ℃ then, Identify the unknown ?

Q: A chemist is studying the following equilibirum, which has the given equilibrium constant at a certa...

A: Consider the given information is as follows; Initial pressure of methane gas = 13. atm Equilibriu...

Q: A 22.0 g block of copper at 45°C absorbs 2.50 kJ of heat. Given the specific heat of Cu is 0.385 Jig...

Q: 2. A solution may contain any of the three group I cations. A white precipitate is formed upon the a...

Q: Click in the answer box to activate the palette. Determine the empirical formula of a compound costa...

A: Given Mass of Silicon: 7.86g Mass of chlorine: 39.7g Molar mass of Silicon: 28g Molar mass of chlo...

Q: Consider the reaction shown below and the tabulated experimental data on initial rates. A + B + 2 C ...

A: we have to find overall order of the reaction.

Q: The dependence of the vapor pressure of a solid mineral on temperature is given by log (p/Torr) = 10...

A: In thermodynamics, the triple point of a substance is the temperature and pressure at which the thre...

Q: 3. Provide the products, intermediates, and/or reagents for the following reactions: (a) CH3 (i) H2N...

Q: What is the pOH of a solution that has a H30* concentration equal to 4.12 x 105 M at 25°C?

A: Hydronium ion concentration is an important parameter of an aqueous solution. The concentration of t...

Q: A tank contains 12 moles of a mixture of neon, krypton, and radon at 300. kPa. If there are two mole...

Q: Consider the radical halogenation of pentane. What are the possible mono-halogenated products? Label...

A: Free radical proceeds reaction with saturated organic molecules by abstracting an atom from carbon. ...

Q: An alcohol contains 64.87% Carbon, 13.57% Hydrogen and the balance is Oxygen. Calculate the Empirica...

Q: reaction order

Concept explainers

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.

Question

2.
A HCN - NaCN solution has a pOH of 8. The HCN concentration is 0.2F Find the
concentration of the NaCN Ke (HCN) = 4 x 10 10

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

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

The HCl in a 0.10 M HCl solution is 100% dissociated. What are the molar concentrations of HCl, H3O+, and Cl in the solution?
Hydrazine, N2H4, can interact with water in two steps. N2H4(aq) + H2O() N2H5+(aq) + OH(aq) Kb1 = 8.5 107 N2H5+(aq) + H2O() N2H62+(aq) + OH(aq) Kb2 = 8.9 1016 (a) What is the concentration of OH, N2H5+ and N2H62+ in a 0.010M aqueous solution of hydrazine? (b) What is the pH of the 0.010M solution hydrazine?
Explain why a sample of pure water at 40 C is neutral even though [H3O+]=1.7107M . Kw is 2.91014 at 40 C.
Consider the following six beakers. All have 100 mL of aqueous 0.1 M solutions of the following compounds: beaker A has HI beaker B has HNO2 beaker C has NaOH beaker D has Ba(OH)2 beaker E has NH4Cl beaker F has C2H5NH2 Answer the questions below, using LT (for is less than), GT (for is greater than), EQ (for is equal to), or MI (for more Information required). (a) The pH in beaker A the pH in beaker B. (b) The pH in beaker C the pH in beaker D. (c) The % ionization in beaker A the % ionization in beaker C. (d) The pH in beaker B the pH in beaker E. (e) The pH in beaker E the pH in beaker F. (f) The pH in beaker C the pH in beaker F.
Strong Acids, Weak Acids, and pH Two 0.10-mol samples of the hypothetical monoprotic acids HA(aq) and HB(aq) are used to prepare 1.0-L stock solutions of each acid. a Write the chemical reactions for these acids in water. What are the concentrations of the two acid solutions? b One of these acids is a strong acid, and one is weak. What could you measure that would tell you which acid was strong and which was weak? c Say that the HA(aq) solution has a pH of 3.7. Is this the stronger of the two acids? How did you arrive at your answer? d What is the concentration of A(aq) in the HA solution described in part c? e If HB(aq) is a strong acid, what is the hydronium-ion concentration? f In the solution of HB(aq), which of the following would you expect to be in the greatest concentration: H3O+(aq), B(aq), HB(aq), or OH(aq)? How did you decide? g In the solution of HA(aq), which of the following would you expect to be in the greatest concentration: H3O+(aq), A+(aq), HA(aq), or OH(aq)? How did you decide? h Say you add 1.0 L of pure water to a solution of HB. Would this water addition make the solution more acidic, make it less acidic, or not change the acidity of the original solution? Be sure to fully justify your answer. i You prepare a 1.0-L solution of HA. You then take a 200-mL sample of this solution and place it into a separate container. Would this 200 mL sample be more acidic, be less acidic, or have the same acidity as the original 1.0-L solution of HA(aq)? Be sure to support your answer.
Two strategies are also followed when solving for the pH of a base in water. What is the strategy for calculating the pH of a strong base in water? List the strong bases mentioned in the text that should be committed to memory. Why is calculating the pH of Ca(OH)2 solutions a little more difficult than calculating the pH of NaOH solutions? Most bases are weak bases. The presence of what element most commonly results in basic properties for an organic compound? What is present on this element in compounds that allows it to accept a proton? Table 13-3 and Appendix 5 of the text list Kb values for some weak bases. What strategy is used to solve for the pH of a weak base in water? What assumptions are made when solving for the pH of weak base solutions? If the 5% rule fails, how do you calculate the pH of a weak base in water?
Using the diagrams shown in Problem 10-117, which of the solutions would have the greatest buffer capacity, that is, greatest protection against pH change, when the following occurs? a. A strong acid is added to the solution. b. A strong base is added to the solution.
Which of the diagrams in Problem 10-135 represents the substance that is the weakest electrolyte?
A solution is tested for pH and conductivity as pictured below: The solution contains one of the following substances: HCl. NaOH, NH4Cl. HCN, NH3, HF, or NaCN. If the solute concentration is about 1.0 M, what is the identity of the solute?
Calculate [CO32] in a 0.010-M solution of CO2 in water (usually written as H2CO3). If all the CO32 in this solution comes from the reaction HCO3(aq)H+(aq)+CO32(aq) what percentage of the H+ ions in the solution is a result of the dissociation of HCO3? When acid is added to a solution of sodium hydrogen carbonate (NaHCO3), vigorous bubbling occurs. How is this reaction related to the existence of carbonic acid (H2CO3) molecules in aqueous solution?
. When sodium hydroxide, NaOH, is added dropwise to a buffered solution, the _______ component of the butter consumes the added hydroxide ion.
Use the same symbols as in Question 61 ( = anion, =OH) for the box below. (a) Fill in a similar box (representing one liter of the same solution) after 2 mol of H+ (2) have been added. Indicate whether the resulting solution is an acid, base, or buffer. (b) Follow the directions of part (a) for the resulting solution after 2 mol of OH- (2 ) have been added. (c) Follow the directions of part (a) for the resulting solution after 5 mol of OH- (5 ) have been added. (Hint: Write the equation for the reaction before you draw the results.)