Plleeassseee sir solveeeeeee the questionnnnn Q2) Calculate the pH of a 0.021 M NaCN solution. [Ka(HCN) = 4.9 × 1010]

Answered: Q2) Calculate the pH of a 0.021 M NaCN…

Science

Chemistry

Q2) Calculate the pH of a 0.021 M NaCN solution. [Ka(HCN) = 4.9 × 1010]

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter14: Acids And Bases

Section: Chapter Questions

Problem 119E: Calculate the pH of each of the following solutions. a. 0.10 M CH3NH3Cl b. 0.050 M NaCN

See similar textbooks

Related questions

Q: Please help me solve the following question, explain it and pls pls make sure everything is correct,…

Q: Chemistry

A: In the given question we have to identify the ionic compounds from the following options. Ionic…

Q: Need help label my chart please help not sure what to do exactly (C8H8O3)

A: The Index of Hydrogen Deficiency of the chemical formula is 5 IHD=22C+2+N−H−X=2(2∗8)+2−8=5The…

Q: Predict the major product of the following reaction at 100 °C? Br HBr 100 °C A B A B C D E Br Br Br…

A: Step 1:Step 2: Step 3:The correct answer is Option DHence the major product of the given reaction at…

Q: 1. (CH3)2NH, H 2. 3. H3O+ A سعید. ملها. B بعد. C D

A: Step 1: Step 2: Step 3: Step 4:

Q: A given mass of a gas at 52 celcius has a pressure of 3.6 *104 Nm-2and occupies a volume of 1.8 dm3.…

A: The objective of the question is to find the new volume of a gas when its pressure is increased,…

Q: 14

Q: Part A MISSED THIS? Watch KCV: Cell Potential, Free Energy, and the Equilibrium Constant Read…

A: Given: K=6.0x10−2;T=298.15K;n=2Step 1: Write the equations we need to use.ΔG°=−RTlnKΔG°=−nFE° Step…

Q: 250.0 M acetic acid and 0.250 M in sodium acetate. What is the initial pH of this solution? What is…

A: Step 1: As volume of buffer solution =250mL=0.250Linitial conc. of acetic acid =0.250MSo ,…

Q: The name of the following compound is: CI HN CH₂

A: To name it using IUPAC nomenclature:1. **Identify the parent structure**: The parent structure is a…

Q: Please write it out in the manner it is shown for easier understanding

A: To address each part of your question related to the redox reaction PbO2(s) + I^-(aq) → Pb^2+(aq) +…

Q: A solution has a pH of 4.65. What is the concentration of hydroxide ions in the solution? a) 1.0'…

A: The objective of the question is to find the concentration of hydroxide ions in a solution with a…

Q: None

Q: Ice actually has negative caloric content. How much energy, in each of the following units, does…

A: The objective of the question is to calculate the amount of energy the body loses when it melts 67g…

Q: Question 3 Incorrect 0.00 points out of 2.00 Remove flag What is the major product? NaOEt + EtO OEt

Q: The molecular weight of horse myoglobin is 16,951.49 Daltons. Intact proteins analysed by ESI-MS…

A: Where:- M = molecular weight of the protein- n = number of charges (number of protons added)- H+ =…

Q: 458. mg of an unknown protein are dissolved in enough solvent to make 5.00 mL of solution. The…

A: Please see the attached image for the solution. If there are queries or if the image is not…

Q: I cannot understnad this question because the question is asking the ‘concentration’ but the…

A: Thank you.

Q: 113 STARTING AMOUNT X Calculate the amount of liters of CO2 gas produced when 113 grams of NaHCO…

A: To determine the amount of CO2 gas produced when 113 grams of NaHCO3 reacts completely, we start by…

Q: 40. An E2 reaction can occur from which conformer? CH3 OTS H. OTS H. LOCH3 (A) H₂CO (B) H H CH3 CH3…

Q: n 20245. 9:52 MY COURSES 2p LTE 79 1s 2s T↓ ↑↓ T↓ Clear my choice Which one of the following is…

A: Step 1: Step 2: Step 3: Step 4:

Q: None

A: Step 1:Step 2: Step 3: Step 4:

Q: Name Student Number Tutorial Group.............. Elimination Reactions of Alkyl Halides - Topic B4…

A: To determine the major products of the E2 reactions, we need to consider Zaitsev's rule, which…

Q: None

Q: 7. Please choose the two reagents below that you would use to synthesize molecule X via a…

A: Step 1: Step 2: Step 3: Step 4:

Q: Part 1 of 2 Each of the following compounds can exhibit optical activity. Enter the label number of…

Q: 1. Without a detailed calculations predict which of the following reactions will be spontaneous…

A: Solutions :- 1. Without detailed calculations, the following can be predicted about the spontaneity…

Q: what is the coefficient for water when the following equation is balanced in standard from As(OH)_3…

A: The objective of the question is to find the coefficient for water (H2O) when the given chemical…

Q: Question 32 --/1 Which of the following solutions is a good buffer system? 1 2 a solution that is…

A: A good buffer solution is a mixture of a weak acid and its conjugate base (or a weak base and its…

Q: Is this correct? And can you go over every steps?

A: Step 1:Step 2:

Q: Please don't provide handwritten solution ....

A: Step 1:Given:Radiation dose, D=4.1 kGyMass of the beef sample, m=1.7kgDuration of exposure, Δt=48…

Q: 3. Hydrogen gas, H,, is stored in a cylinder with a volume of 5.80 L, a pressure of 18.00 atm and a…

Q: Which combination of protons neutrons and electrons correctly represents a neutral 57 Fe atom a. 26…

A: The question is asking us to identify the correct combination of protons, neutrons, and electrons…

Q: ㅁ mol 265. mg of an unknown protein are dissolved in enough solvent to make 5.00 mL of solution. The…

A: Step 1:Step 2:

Q: Hydrophobic tails Hydrophilic head Question 2 O P-O 1 12 CH-CH-CH o CHOCIO -3 -4 2 3 Hydrophilic…

A: Step 1:Phospholipids:Phospholipids actually have a hydrophilic head and hydrophobic tail. The head,…

Q: c) CH3 COOH starting material target compound

A: Certainly! The transformation of toluene to p-toluic acid involves several steps and principles of…

Q: 874 Problem 12 of 20 Submit Draw the structure of the reactant needed to complete the Sonogashira…

Q: Please don't provide handwritten solution ...

A: According to Le Chatelier's Principle, when an equilibrium-state system is disrupted by changes in…

Q: 11) Consider the synthesis of the thiourea derivative below. If 62 g methylamine and 50 g thioformyl…

A: Step 1: The percent yield for 75 g thiourea is 2.24%

Q: What are the best reagents to complete this transformation? OH BH3 / THF followed by H2O2/ - OH…

A: Answer:

Q: Draw the structure of oxidised anthraquinone-2-sulfonate and the reduced structure of…

A: Step 1: Step 2: Step 3: Step 4:

Q: 8

A: In the given, we can compute the root-mean-square speed of N2 molecules in a sample of nitrogen gas…

Q: Provide the major product: CH 3 сизо- 1. NBS, Pyridine 2.KN3 3. Liality 4.H20

A: The objective of this question is to predict the major product of a multi-step organic reaction…

Q: i need help with figuiging out what the following IR synthesis

A: Synthetic Pathway: We start with a halohydroxyalkane, namely 3-bromo-4-iodobutan-2-ol which we react…

Q: N-Substituted morpholines are building blocks in many drugs. Below is a retrosynthetic analysis of…

A: Synthesis of N-Methyl Morpholine from Methylamine and Ethylene Oxide: Retrosynthetic…

Q: All are reasons to monitor therapeutic drugs EXCEPT: Question 13 options:…

A: Monitoring therapeutic drugs is a critical aspect of patient care, primarily aimed at ensuring the…

Q: Question 35 Identify the indicator that has two endpoints. (Refer to Fig. 14.19 in the ebook) 1…

A: Solution 35)Indicators and their ph ranges are:Phenol red: pH range 6.8 to 8.2.Alizarin yellow R: pH…

Q: Propose the reagents in best order for the synthesis of the following compound from benzene. CI A)…

A: Step 1:Step 2:

Q: Draw the product of the reaction shown below at physiological pH (pH = 7.4). Ignore inorganic…

A: The reagent (BOC)2O is a reagent commonly used in capping or protecting the amine group in the amino…

Q: Given an amino acid, be able to draw the structure when it is placed in water at pH = 2, pH = 7, or…

A: Let's take Glycine amino acid as our given amino acid. Glycine is the simplest amino acid, with a…

Question

Plleeassseee sir solveeeeeee the questionnnnn

Q2) Calculate the pH of a 0.021 M NaCN solution. [Ka(HCN) = 4.9 × 1010]

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 by step

Solved in 2 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

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.
Estimate the pH that results when the following two solutions are mixed. a) 50 mL of 0.3 M CH3COOH and 50 mL of 0.4 M KOH b) 100 mL of 0.3 M CH3COOH and 50 mL of 0.4 M NaOH c) 150 mL of 0.3 M CH3COOH and 100 mL of 0.3 M Ba(OH)2 d) 200 mL of 0.3 M CH3COOH and 100 mL of 0.3 M Ba(OH)2
The weak base, CIO (hypochlorite ion), is used in the form of NaCIO as a disinfectant in swimming pools and water treatment plants. What are the concentrations of HCIO and OH and the pH of a 0.015 M solution of NaCIO?
A solution of baking soda, NaHCO3, has a pH of 10.08. What is the percent (by mass) of NaHCO3 in a 235-mL solution? (Assume a density of 1.00 g/mL.)
Calculate [OH-] and pH in a solution in which the hydrogen sulfite ion, HSO3-, is 0.429 M and the sulfite ion is (a) 0.0249 M (b) 0.247 M (c) 0.504 M (d) 0.811 M (e) 1.223 M
Lactic acid, C3H6O3, occurs in sour milk as a result of the metabolism of certain bacteria. Calculate the pH of a solution of 56. mg lactic acid in 250. mL water. Ka for D-lactic acid is 1.5 × 10−4.
A 1000.-mL solution of hydrochloric acid has a pH of 1.3. Calculate the mass (g) of HCl dissolved in the solution.
The pH of a 0.10-M solution of caffeine is 11.16. Determine Kb for caffeine from these data: C8H10N4O2(aq)+H2O(l)C8H10N4O2H+(aq)+OH(aq)
Calculate the maximum concentration of Mg2+ (molarity) that can exist in a solution of pH 12.00.
Consider 0.10 M solutions of the following compound: AlCl3, NaCN, KOH, CsClO4, and NaF. Place these solutions in order of increasing pH.
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?
Which of the diagrams in Problem 10-135 represents the substance that is the weakest electrolyte?