What is the pH of a 0.050 M solution of triethylamine with the Kp value of 5.3x 10-4?

Q: (EAV) can be calculated ying the number of electrons in each of these orbitals (ns and np) by their ...

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Q: A student weighs out a 13.4 g sample of Fe(CH3OO)3, transfers it to a 250. mL volumetric flask, adds...

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Q: A hydrogen electrode is immersed in a 2.4 M solution of acetic acid at 25 °C. This electrode is conn...

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Q: Calculate the equilibrium constant of the reaction given the following thermodynamic data: H+ (aq) +...

A: Given equation is :  H+ (aq) + OH- (aq) ---------> H2O (l)  Table is :  Then, find the value of ...

Q: A solution of oxalic acid is used to titrate 17.11 mL of a 0.5003 molar: sodium hydroxide. If the ti...

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Q: temperature of the surrounding solution increase or dec

A: Thermodynamics is  branch of chemistry in which we deal with amount of heat  evolved or absorbed dur...

Q: What is the pressure of CO2 (in atm) at 275.80 K, molar volume = 4 liter/mole, if B = – 0.053 liter/...

A: Detail mathematical calculation for pressure using virial equation of state is shown below

Q: A) How many mL of a 0.158 M aqueous solution of sodium nitrate, NaNO3, must be taken to obtain 1.58 ...

A: Given,  A) How many mL of a 0.158 M aqueous solution of sodium nitrate, NaNO3, must be taken to obta...

Q: At a given temperature, 0.00332 moles of Hg in the gas phase have a pressure of 0.00120 mmHg and a v...

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Q: Decide the charge on each ion. write the correct WRITING FORMULAS & NAMING COMPOUNDS formula 2OL che...

A: Here we have to write the formula of ionic compounds and their IUPAC name.

Q: What part fo chromatography is being descibe by the following? a phase that is fixed in place either...

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Q: What is the physical or chemical properties for butane compound that's soluble in cyclohexane

A: Physical properties of hydrocarbons:

Q: 2. Calculate the [I] (after dilution in the 50.00 mL flasks) for the four standard solutions you mak...

A: With dilution concentration of a substance decreases.

Q: How To Prepare 100 ML Of A 0.08 N Potassium Acid Phthalate (KHC8H4O4) Solution.

A: Detail mathematical calculation is shown below

Q: Concentration of original aspirin solution (calculate M1 using M1V1=M2V2; M2 is the concentration of...

A: As per Beer-Lambert law:

Q: wavelength of maximum absorption of the complex FeSCN^(2+) has a molar absorptivity of 6.99 x 10^3 L...

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Q: Consider the following standard reduction potentials: 2H+ + 2e → H2 Sn+2 + 2e → Sn Cd+2 + 2e¯ → E = ...

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Q: Which are true for paper chromatography? Select the correct response(s): the more polar component wi...

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Q: Arrange the following steps according to the order of process in Mass spectrometry ...

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Q: 6. What is the molarity of a solution containing 325 g of NaCl dissolved in 750 mL of solution?

A: given, mass of NaCl = 325 g molar mass of NaCl = 58.44 g/mol volume of solution = 750 mL = 0.750 L

Q: A 33.8 mL sample of a 0.400 M solution of NaCN is titrated by 0.160 M HCI. Kb for CN is 2.0 x 10-. C...

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Q: A soft drink costs 75 cents for a 12-oz A two-liter bottle costs $1.25. How much more expensive is t...

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Q: 11. Cro, 12. Ва(С, Н, О,), 13. ICI, 14. РbS, 15. Са, РО,), по

A: Here we have to determine whether the given compounds are binary or not, covalent or ionic compound,...

Q: In a copper lamp used in Flame Atomic Absorption Spectroscipy, the copper metal inisde is the Cathod...

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Q: For the reaction A +2 B→ C under a given set of conditions, the initial rate is 0.130 M/s. Part A Wh...

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Q: Calculate the wavelength of the emitted photon when a particle of 1.0 x 10-27g in a box 6.0 A° long ...

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Q: What is the ionic strength of a 3:2 electrolyte with a concentration of 0.100 M? a. 1.8 M b. 1.5 M...

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Q: 7. If 3.25 g of Mg(OH)2 can dissolve in 155 mL of water as it makes a saturated solutions, determine...

A: The mass of dissolved magnesium hydroxide is = 3.25 g The volume of the solution is = 155 mL The mol...

Q: Determine the pH change when 0.119 mol NaOH is added to 1.00 L of a buffer solution that is 0.438 M ...

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Q: Find the molecular weight of the starch fragments in nearest Dalton if starch fragments contain 400 ...

A: The general formula of starch is (C6H10O5)n. 

Q: analysis

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Q: 1 mol propane (C3H8) and stoichiometric amount of oxygen (O2) needed to combust propane was preheate...

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Q: If you will measure 90µL of liquid what pipette calibration should you use appropriately? A. 100µ...

A: Ans. A. 100µL - 1000µL  Option A is right here. Each micropipette only works effectively within a ce...

Q: Propose a synthesis of the compound shown below starting with benzene and any other acydic carbon co...

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Q: In a certain zinc-copper cell, Zn(s) + Cu2*(aq) → Zn2*(aq) + Cu(s) the ion concentrations are [Cu2+]...

A: Zn(s) + Cu^2+(aq) --> Zn^2+(aq) + Cu(s) [Cu^2+] = 0.0372 M ,[Zn^2+] = 1.9M T = 25°C  = 25 + 273 =...

Q: 1. For AAS analyses, the following are atomization techniques except- A. Hydride atomization B. Che...

A: Atomic absorption spectrometry (AAS) is a technique in which free gaseous absorb electromagnetic rad...

Q: The image below illustrate the complete separation. True or False? O True False

A: In the given image it is clear that there are three type of molecules: Red ones Blue ones And black ...

Q: Question 2 The product of the reaction below has the formula CgH6NO3I. Which of the following statem...

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Q: A solution contains 1.0 × 10-3 M Pb2*. Drops of a 5.0 x 10-1M solution of NaBr were added through a ...

A: To find that precipitation is formed or not .,  

Q: Give the Nernst equation for the electrode potential of a redox electorode.

A: The nernst equation can be used to determine the cell potential of a cell in non-standard state.  

Q: A solution contains 5.98x10 3M ammonium sulfide and 9.44x103 M sodium cyanide. Solid silver nitrate ...

A: Answer: This question is based on properties of saturated solution, where if ionic product of the co...

Q: mixture of three components is separated using paper chromatography, and each component is analyzed ...

A: Given: Absorbance of standard solution- Compound A = 0.72 Compound B = 0.55 Compound C = 0.80 For un...

Q: Mechanisms and Molecularity I Review | Constants | Periodic Table Part C Learning Goal: To understa...

A: rate of reaction is defined as the change in the concentration upon the certain time interval we are...

Q: The bombarded fragments forms a radical is represented by a mass charge ion ratio known as L)? molec...

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Q: Which part of the instrument perform the given function introduction of a micro amount of sample A. ...

A: In mass spectrometry, a molecule is ionised and fragments are created which are further studied to f...

Q: What does Heisenberg uncertainty principle tell us? Where does Heisenberg’s uncertainty principle ha...

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Q: Select the reaction(s) that illustrate a favorable negative enthalpy of reaction. A В R C D R R A C ...

A: A question based on chemical thermodynamics that is to be accomplished.

Q: Estimate the average energy for valence electrons in a nitrogen N atom. Type your numeric answer and...

A: Answer: Given data- Formula is given to solve the equation. To find- Average energy for valence elec...

Q: What effect does a catalyst have on the activation energy of the reaction? In the graphs below draw ...

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Q: What caused the color changes in the apple juice titrated without any phenolphthalein present? (Hint...

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.