Question

A certain weak base has a Kb of 8.40 × 10-7. What concentration of this base will produce a pH of 10.39? anwser in M

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Science
Chemistry

Related Chemistry Q&A

Find answers to questions asked by students like you.

Q: Pure copper may be produced by the reaction of copper(I) sulfide with oxygen gas as follows:  Cu2S(s...

A: The percent ratio of actual yield to the theoretical yield known as percent yield. Mathematically, i...

Q: 2. a)What happens when Isoamyl Alcohol is allowed to heated with Acetic Acid in presence of concentr...

A: (a)Isoamyl alcohol reacts with acetic acid in the presence of concentrated sulfuric acid and gives i...

Q: 200.0 mL of an acetate/acetic acid buffer is .100 M in total molarity and has a pH of 5.000. After 6...

A: A buffer resists a significant change in pH when a small amount of acid or base is added to it. The ...

Q: When 5.967 x 10-1 mol of NH3 and 5.967 x 10-1 mol of O2 are introduced into a 1.976 L reaction vesse...

A: An equilibrium constant  is the ratio of concentration of products and reactants raised to appropria...

Q: When 7.121 x 10-1 mol of NH3 and 7.121 x 10-1 mol of O2 are introduced into a 2.305 L reaction vesse...

A: Kc of the reaction is to be calculated

Q: Which of the following bonds would be the most polar? a. C-Br b. C-I c. Cl-Cl d. C-F

A: The most polar bond among the given options  is to be selected-a. C-Brb. C-Ic. Cl-Cld. C-F

Q: What is the value of delta G at 120.00 C for a reaction in which delta H = 5.0kj/mole and delta S = ...

A: The change in Gibbs free energy is calculated as,

Q: LA A #7 a) Briefly describe how you can tell which layer is the aqueous Phase after perform ain exth...

A: You can't tell just by looking at it, you need to know the density of the extraction solvent. If it ...

Q: What are the ions of which it is composed? The compounds AlF3, CrCl2, and Ba(NO2)2 are ionic compoun...

A: Ionic compounds are compounds composed of ions, charged particles that form when an atom gains or lo...

Q: draw the most stable conformation of (a) ethylcyclohexane (b) 3-isopropyl-1,1-dimethylcyclohexane

A: Conformations: Rotation about C-C single bonds allows a compound to adopt a variety of possible thre...

Q: 10. Starting with toluene, which of the following is the best method to make the ether shown below? ...

A: Reason for correct option:Toluene reacts with ferric chloride and chlorine we get p-chloro-toluene f...

Q: Formula Molar mass of element/ion   Moles    Mass O: F: dioxygen difluoride.   X Mol  =   Cati...

A: Mass of the given compounds can be calculated as,

Q: What is the Kinetic energy of a 2000-Ib car traveling at 59 miles per hour? (Ib =0.4536 kg, 1 mi= 1....

A: The Kinetic energy of a 2000-lb car traveling at 59 miles per hour is calculated as,1lb =0.4536 kg1m...

Q: 5. Write a flow chart to show how you could separate the following pairs of compounds by using acid-...

A: Step1:By using acid base extraction, from a given mixture separation of pure compounds depends on th...

Q: Where would the compound shown below undergo bromination with Bra/FeBr3? 6. -N-C ring 1 ring 2

A: Electrophilic Aromatic Substitution reaction: a reaction in which the hydrogen atom in the aromatic ...

Q: Given the following reaction CH3NNCH3(g) ==> C2H6(g) + N2(g) and the measured kinetic data below:...

A: The rate law of a reaction expresses the relationship between the concentration of the reactant spec...

Q: Based on your answer in Part A (0.1 mol 13C), calculate the number of atoms in this amount of 13C?

A: One mole of any elements contains Avogadro number of atoms.  Avogadro number is 6.022*1023.

Q: Table 5.5 (data)ObservationsSample Tested Add HCISolid CaCO 3 _______Solid CuSo 4 _______Mixture ___...

A: The reactions of CaCO3 and CaSO4 with HCl are,

Q: Question # ei Name the following compounds: 1- HOCH2CH2OH CO2H 2 SH

A: 1) In this compound, two carbon atoms and two alcohol groups are present.  Two carbons indicates eth...

Q: Choose the statement that correctly describes how a weak electrolyte looks in a beaker of water.  ...

A: The correct statement has to be chosen about how a weak electrolyte looks in a beaker of water. Give...

Q: 10k gold is often used in jewelry (k=karat ) . Pure gold is 24k . What percentage of 10k gold is act...

A: 24karat gold is 100% pure gold.  Now, the given gold is 10k which means it is 10 parts of 24 parts g...

Q: Lit CH3I LDA) CH3I C12 Hcl /H2O LDA 2) Br

A: LDA is strong and bulky base used for the formation of enolate ion. Cyclohexanone reacts with LDA re...

Q: Rank the compounds in each group below according to their reactivity toward electrophilie aromatic s...

A: Among the given compounds, toluene contains activating group which encourages electrophilic aromatic...

Q: Determine the pH of a 0.125 M NH3 solution.

A: Ammonia is a weak base and its kb  is 1.75*10-5.  The given concentration of ammonia solution is gre...

Q: Do more complicated equations, such as NOCl2+NO->2NOCl have smaller orientation factors or do sim...

A: In complicated equation, such as the equation given below, the possible ways that the NO atom collid...

Q: How are ionic bonds and covalent bonds different? Why is F2 a nonpolar molecule, but H2O is a polar ...

A: Covalent bonds are much more common in organic chemistry than ionic bonds.In covalent bonds, atoms s...

Q: 4. Provide the structure of the intramolecular aldol condensation/dehydration product that results w...

A: Aldol condensation is a condensation reaction in which aldehyde having alpha-hydrogen reacts with en...

Q: The boiling point of methanol is 72.2 oC. The molar boiling point elevation constat for methanol is ...

A: Moles of acetic acis is 0.8333 mol.

Q: For the reaction2Na(s)+ 2H2O(l)2NaOH(aq) + H2(g)H° = -369 kJ and S° = -15.3 J/KG° would be less than...

A: When the value of G° is less than zero, that is G° is negative, the reaction would be spontaneous at...

Q: 5. An atom of which of the following elements has the smallest atomic radius? a. Cl b. Rb c. Mg d. S...

A: Atomic radius is the distance between the center of nucleus and valence electron in the outermost sh...

Q: When a chemist burns ammonia according to the reaction below she finds that the reaction releases he...

A: First, calculate the moles of ammonia by using its molar mass,

Q: What is the OH- concentration in a 7.5 x 10-3 M Ca(OH)2 solution?

A: Calculate the OH- concentration in a 7.5 x 10-3 M Ca(OH)2 solution.

Q: If the daily allowance for Vitamin C is assumed to be 75.0 mg, how many liters (L) of a 0.002154 M s...

A: The number of moles of vitamin C(ascorbic acid) is calculated as,

Q: What is the solubility rule? What is a typical polar solvent? What is a typical non-polar solvent?

A: The extent of (solid, liquid or gaseous) solute quantity that dissolves in particular given amount o...

Q: Consider the reaction:2HBr(g)H2(g)+ Br2(l)Using standard thermodynamic data at 298K, calculate the f...

A: Using standard thermodynamic data at 298K, the standard Gibbs free energy of formation of the produc...

Q: If a US quarter has a mass of 5.67 g and is 1.55 mm thick, how many quarters would have to be stacke...

A: The US quarter has mass of 5.67g and is 1.55 mm thick.Convert the given thickness in mm to ft by usi...

Q: Please draw the ma lor Products for the olouwing r HBr/Uvlight Hz /Lindlars Ca talyst onc

A: When the given alkene reacts with HBr under UV light, it undergoes bromination through anti-Markovni...

Q: } LIOH -Cl tN NO Hasoy socla E13N CI

A: Hey, since there are multiple sub-parts question posted, we will answer first three questions. If yo...

Q: What is the major product of the following reaction? 1. OH HNO3 H2SO4 CH2CH3

A: Electrophilic Aromatic Substitution reaction: a reaction in which the hydrogen atom in the aromatic ...

Q: what would the chemical reactions be if im doing an experiment of melting point for the mixture of u...

A: Eutectic point at which liquid of both substances urea and cinnamic acid are in equilibrium that is ...

Q: State two conditions which favor SN1  and SN2 reaction. ( Structure of alkyl halide  and nucleophile...

A: Nucleophillic substitution reactions proceed  either by SN1 or SN2. SN1 is a type of nucleophilic su...

Q: The energy change, q, for a system is given by the formula q=m * C * change T. C is the specific hea...

A: The change in energy of a system is given by,

Q: What would the theoretical yield and then reaction yield % be for esterification. My data point incl...

A: Theoretical yield is the amount of product predicted based on the stoichiometric ratio of the reacta...

Q: how do you complete theoretical yield for experiment of benzil where we combined together benzoin, n...

A: Benzoin reacts with nitric acid to form benzil. Theoretical yield of benzyl can be determined by fol...

Q: I don't even know what lithium dicyclohexylcuprate looks like and I can't seem to find it on the int...

A: Acetophenone reacts with butyllithium to give vinyl alcohol.

Q: I don't know what those signals indicate on the MS spectrum and I don't know the mechanism for the r...

A: Hey, since there are multiple questions posted, we will answer one question. If you want any specifi...

Q: Is H2O considered tetrahedral, triagonal planar, or is it linear? Is it considered sp3, sp2, or sp? ...

A: H20  is having tetrahedral geometry and bent shape.H20 is sp3 hybridised. CO2 is linear and sp hybri...

Q: What is the difference between a primary and a secondary standard? Give an example of each.

A: Primary Standard Solution: Primary standard solutions are solutions made out of primary standard sub...

Q: Which of these reactions take place in both anaerobic and aerobic respiration? A. glycolysis B. citr...

A: In aerobic respiration energy produce due to the breakdown of glucose in the presence of oxygen. In ...

Q: What is a valence electron and why are they important to a chemist, and there for all of life?

A: Valence electrons are the electrons in the outermost energy level of an atom in the energy level tha...