Solve it asap completely... Given that pKa = 4.72 at 25 °C for HN3, what is the pH of 0.125 mol L-1 NaN3(aq) at 25 °C? What is the equilibrium%3Dconcentration of HN3?pH =Number(Give your answer accurate to 2 decimal places.)[HN3]eg = Numbermol L-1(Giveyour answer accurate to 2 signficant figures.)

A question based on equilibrium concept that is to be accomplished.

Given that pKa = 4.72 at 25 °C for HN3, what is the pH of 0.125 mol L-1 NaN3(aq) at 25 °C? What is the equilibrium concentration of HN3? pH = Number (Give your answer accurate to 2 decimal places.) [HN3]eg = Number mol L-1 (Give your answer accurate to 2 signficant figures.)

Given that pKa = 4.72 at 25 °C for HN3, what is the pH of 0.125 mol L-1 NaN3(aq) at 25 °C? What is the equilibrium concentration of HN3? pH = Number (Give your answer accurate to 2 decimal places.) [HN3]eg = Number mol L-1 (Give your answer accurate to 2 signficant figures.)

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter15: Acid-base Equilibria

Section: Chapter Questions

Problem 7ALQ: You have a solution of the weak acid HA and add some HCl to it. What are the major species in the...

See similar textbooks

Related questions

Q: ki C2O4 Step 1: 2 ClO2 (fast equilibrium) k-1 k2 Step 2: C2O4 + OH¯ → ClO;¯+HC1O2 (slow) k3 Step 3: ...

A: Since you have asked multiple question, we will solve the first question for you. If you want any sp...

Q: What is the pH of a 3.50 M solution of NH4CI (Ká of NH3= 1.8 x 105)?

Q: Section 2.1 Elements - Atom - Figure 2.1 – What does the periodic table show? Subatomic particles: s...

A: We have to answer the following questions.

Q: A bicyclist is stopped at the entrance to a valley, as sketched below: E Where would the bicyclist h...

A: A bicyclist is stopped at a entrance to a valley we have to determine P.E , K.E , T.E

Q: A 20.0 mL sample of 0.115M H2SO3 is titrated with 0.1014 M KOH. At what volume (of added base) does ...

A: Given data : Concentration of H2SO3 = 0.115 M Volume of H2SO3 = 20.0 mL Concentration of KOH = 0.10...

Q: Choose ONE of the following conversion problems to complete. Report your answer with the correct num...

A: 1.) To convert these values in required units , we would need conversion factors. We would use dim...

Q: Find the product of the following reaction!! OH A

Q: What is the Ksp for the following reaction if the concentration of La3+ was measured to be 9.2 × 10-...

Q: The names and chemical formulae of some chemical compounds are written in the first two columns of t...

A: Ionic compounds dissolve in water to form cations and anions. In the aqueous solution, the concentra...

Q: 7. Draw the structural formula of: 5,5-diethyl-2,2,4-trimethyloctane

Q: A penny has a mass of 2.50 g and the Moon has a mass of 7.35 x 10 kg. 22 Use this information to ans...

Q: How many moles of Ba(OH)2 are present in 225 mL of 0.200 mol L Ba(OH)2?

A: Given :- concentration of Ba(OH)2 solution = 0.200 mol.L-1 volume of Ba(OH)2 solution = 225 mL T...

Q: Anna B. wants to determine what type of wave is emitted when a hydrogen electron passes from level 6...

A: We should be aware of wavelengths of electromagnetic spectrum.

Q: What kind of solvent ingredients is widely is usually used in mouthwash, perfumes and spray A. Eth...

A: Solution is made up of two components: solue and Solvent. Component which is present in major amount...

Q: Calculate potentials after the addition of 10.00, 25.00, 50.00, and 50.10 mL of the reagent. Where n...

A: "Since you have asked multiple questions, we will solve the first question (4a) for you. If you want...

Q: Applying: Water is liquid at room temperature, the most important reason for this is the? * high boi...

A: Please find your solution below : Since you have asked multiple question, we will solve the first qu...

Q: Which combination of AG° and K is possible at standard conditions? 1. AG° = -114 J, K = 0.0053 2. AG...

Q: Be sure to answer all parts. Nitric oxide (NO) reacts witı oxygen gas to form nitrogen 2NO(g) + 02(8...

A: Given: Moles of NO= 0.857 Moles of O2 = 0.498 Limiting reactant=? Moles of NO2 = ?

Q: Two 21.0 mL samples, one 0.100 mol L¬'HCl and the other 0.100 mol L¬'HF, were titrated with 0.200 mo...

A: A.).B) Equivalence point is the point of neutralization of H+ and OH- ions. At this point moles of...

Q: 4. What volume (in mL) of a 0.360 M Ba(OH)2 solution is needed to neutralize 25.0 mL of a 0.296 M so...

A: In the given question we have to find out the volume of Ba(OH)2 solution in mL. Given data: concen...

Q: For a reaction where AH° = +573 kJ/mol and AS° = +1.64 J/mol·K, at what temperature, in K, does X(I)...

Q: What is the molar solubility of NiS if the Ksp is 3.0 × 10-20? NiS(s) ⇌ Ni2+(aq) + S2−(aq)

A: Given, NiS(s) ⇌ Ni2+ (aq) + S2- (aq) The Ksp of NiS is 3.0× 10-20 The molar solubility of NiS is:...

Q: Determine the number of molecules in 28.6 grams of SO₂.

Q: A certain reaction is studied at room temperature, and gives a straight line plot for 1/[reactant] v...

A: Incorrect option is The half - life remains constant as the reaction proceeds further. explanation ...

Q: If the acid ionization constant for HX is 1.60 x10 10 at 25 °C what is the ionization constant for t...

Q: 6. Clearly and completely describe a simple, ONE step (a single reagent added) test that would allow...

A: a. NaOH is the single distinguishing reagent for Bi(OH)3 and Al(OH)3. Al(OH)3 reacts with NaOH to fo...

Q: Part A As a technician in a large pharmaceutical research firm, you need to produce 100. mL of 1.00 ...

Q: 12.45 What is osmosis? What is a semipermeable membrane?

A: Answer: Osmosis is a natural phenomenon and it found in plants where xylem sap travels across the pl...

Q: The chemical formula for diethyl sulfoxide is: (CH,CH,), SO Calculate the molar mass of diethyl sulf...

Q: Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium b...

A: Aqueous hydrobromic acid reacts with sodium hydroxide to form aqueous sodium bromide and water. The ...

Q: A certain amount of the Butylated hydroxvanisole (BHA) was dissolved in 21.0 g of trichloromethane (...

Q: What are the metric prefixes from largest to smallest?

A: The metric prefixes are shown below from the largest to smallest Mega = 106 Kilo = 103 hecto = 100...

Q: 100 mL of O, 100 MOLAR HCe is to bie neutralized usna Ob250 M wihany NaoH. How selutión inust be Wed...

A: Given :- molar concentration of HCl = 0.100 M Volume of HCl solution = 100 mL Molar concentration ...

Q: A chemist needs to determine the concentration of a solution of nitric acid, HNO3 . She puts 905 mL ...

A: Given data:- The volume of HNO3 taken = 905 ml = 0.905 L The concentration of Ba(OH)2 = 0.600 mol.L-...

Q: A bufter sokution is prepared by mixing 145 ml. of .100 mol L HCI win 20 ml. of 0.100 mol L Trie. Wh...

A: Given-> Volume of HCl=14.5 ml Molarity of HCl = 0.100 mole/L Volume of tris =29 ml Molarity of tr...

Q: Suppose a 500. mL flask is filled with 1.3 mol of CH, 0.60 mol of CS, and 1.5 mol of H,. This reacti...

Q: You have synthesized the four following compounds. You are now running pką studies on each one. Whic...

Q: the use of an indicator to determine a concentration using titration as good as using a pH meter? W...

A: Principle of pH meter - it is scientific instruments which measure hydrogen ion activity in so...

Q: You are assigned as a design engineer to design a Carbon Dioxide Capsule (CO2). The design means you...

A: Given: Diameter of cylindrical float = 0.45 m Radius of cylindrical float = 0.225 m length of float ...

Q: Calculate the value of the equilibrium constant at 298 K for the reaction happening at 263 K that is...

A: The equilibrium constant (K) of a reaction can be determined by the Gibbs free energy ∆G of the reac...

Q: You have a large bottle of 10.0 M hydrochloric acid and you want to make 6.0 L of 3.0 M hydrochloric...

A: Detail mathematical calculation is shown below

Q: Part A A 360.0 mL buffer solution is 0.130 mol L- in HF and 0,130 mol L-1 in NaF. What mass of NaOH ...

Q: You synthesize the following compound via a base-mediated synthesis. Upon workup, you find that the ...

A: The solution of the answer is given below:

Q: e equilibrium constant fo

Q: What is the pH of a 0.320 M solution of Ca(NO₂)₂ (Ka of HNO₂ is 4.5 × 10⁻⁴)?

Q: Which of these reasons contribute to the very large gap between the second and third magnesium ioniz...

A: Here, we have to find the reason that contributes to the very large gap between the second and third...

Q: 12.57 Pheromones are compounds secreted by the females of many insect species to attract males. One ...

Q: A sample of oxygen gas has a volume of 545 mL at 35°C. The gas is heated to 151°C at constant pressu...

Q: An iron-carbon alloy has a composition of 0.9 wt% C. This is a alloy. Question 10 options: eutectic ...

A: The alloy which contains carbon percentage between the 0.8% to 2 % are known as hypereutectoid alloy...

Q: Write the solubility equilibrium constant expression for silver phosphate Show the ICE Table and ca...

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

Solve it asap completely...

Given that pKa = 4.72 at 25 °C for HN3, what is the pH of 0.125 mol L-1 NaN3(aq) at 25 °C? What is the equilibrium
%3D
concentration of HN3?
pH =
Number
(Give your answer accurate to 2 decimal places.)
[HN3]eg = Number
mol L-1
(Give
your answer accurate to 2 signficant figures.)

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Given

VIEW

Solution

VIEW

Answer

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 1 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

8-112 Consider an initial 0.040 M hypobromous acid (HOBr) solution at a certain temperature. At equilibrium after partial dissociation, its pH is found to be 5.05. What is the acid ionization constant, Ka, for hypobromous acid at this temperature?
What is the freezing point of vinegar, which is an aqueous solution of 5.00% acetic acid, HC2H3O2, by mass (d=1.006g/cm3)?
The pH of a 0.10-M solution of propanoic acid, CH3CH2COOH, a weak organic acid, is measured at equilibrium and found to be 2.93 at 25 °C. Calculate the Ka of propanoic acid.
The pH of a solution of Ba(OH)2 is 10.66 at 25 . What is the hydroxide ion concentration in the solution? If the solution volume is 125 mL, what mass of Ba(OH)2 must have been dissolved?
You have a solution of the weak acid HA and add some HCl to it. What are the major species in the solution? What do you need to know to calculate the pH of the solution, and how would you use this information? How does the pH of the solution of just the HA compare with that of the final mixture? Explain.
Chromic acid, H2CrO4, is commonly obtained by adding concentrated H2SO4 to a dichromate. It is used to clean glass. For chromic acid, Ka is 1.8101 and 3.2107 for its first and second dissociation, respectively. Write the overall equation and calculate K for the complete dissociation of chromic acid.
Amino acids are an important group of compounds. At low pH, both the carboxylic acid group (CO2H) and the amine group (NHR) are protonated. However, as the pH of the solution increases (say, by adding base), the carboxylic acid proton is removed, usually at a pH between 2 and 3. In a middle range of pHs, therefore, the amine group is protonated, but the carboxylic acid group has lost the proton. (This is called a zwitterion.) At more basic pH values, the amine proton is dissociated. What is the pH of a 0.20 M solution of alanine hydrochloride, [NH3CHCH3CO2H]Cl?
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?
Weak base B has a pKb of 6.78 and weak acid HA has a pKa of 5.12. a Which is the stronger base, B or A? b Which is the stronger acid, HA or BH+? c Consider the following reaction: B(aq)+HA(aq)BH+(aq)+A(aq) Based on the information about the acid/base strengths for the species in this reaction, is this reaction favored to proceed more to the right or more to the left? Why? d An aqueous solution is made in which the concentration of weak base B is one half the concentration of its acidic salt, BHCl, where BH+ is the conjugate weak add of B. Calculate the pH of the solution. e An aqueous solution is made in which the concentration of weak acid HA twice the concentration of the sodium salt of the weak acid, NaA. Calculate the pH of the solution. f Assume the conjugate pairs B/BH+ and HA/A are capable of being used as color-based end point indicators in acidbase titrations, where B is the base form indicator and BH is the acid form indicator, and HA is the acid form indicator and A is the base form indicator. Select the indicator pair that would be best to use in each of the following titrations: (1) Titration of a strong acid with a strong base. (i) B/BH+ (ii) HA/A (2) Titration of a weak base with a strong acid. (i) B/BH+ (ii) HA/A
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?
12.62 Write the formula of the conjugate acid of each of the following bases, (a) OH-, (b) NHj, (c) CHjNHt, (d) HPO/-, (e) CO.,2’
3. A 0.0560 g quantity of acetic acid is dissolved in enough water to make 50.0 mL of solution. Calculate the concentrations of H;O*, CH;COO and CH;COOH at equilibrium. What is the pH of the solution? (Ka = 1.8x10) CH;COOH(aq) = CH;COO (aq) + H;O* (aq) a) Calculate the initial concentration of CH;COOH. (C:12; H:1; 0:16) b) Calculate the concentration of CH;CoO (aq) and H;O* (aq) at equilibrium. c) Calculate pH of the solution.