Which of the following is incorrect regarding electrodes of the first kind? O a. may depend on the pH of the solution O b. used for detecting cations O c. response is always reproducible O d. consist of metal in contact with its cation

Q: Draw and describe each of the three main phases of matter (solid, liquid, and gas) such that it is c...

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Q: Mixing cyclohexanol with phosphoric acid is an exothermic process, whereas the production of cyclohe...

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Q: Consider the diagrams for solutions A, B and C. Water molecules have been omitted for clarity. Solut...

A: Ionic compound is formed by metal and non metal with considerable electronegativity 

Q: Use two concentration tables to calculate the concentrations of the species present in a 0.0365 M so...

A: The concentration of a solution is the ratio between the number of moles of solute to the solution v...

Q: Option 1- Mechanism - show all the intermediates (after A) and use arrows correctly a. suggest a str...

A: In presence NaNO2 , HCl , NH2 group of the substrate compound  is eliminated out in the form of nitr...

Q: grams

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Q: What does the atomic structure or the atomic number tell us about the identity of an element?

A: We have to tell what does the atomic structure or the atomic number tell us about the identity of an...

Q: Benzaldehyde is the compound principally responsible for the odor of almonds. What product is formed...

A: Solution - According to the question - Given - benzaldehyde (C6H5CHO), the simplest representative o...

Q: 1. LAH `NH2 CH3CHO 2. HаО

A: ->LAH is reducing agent which can reduce amide to amine. -> amine react with aldehyde and form...

Q: Explain the similarities between a 1M solution of NaOH and a 1m solution of NaOH

A: Given-> 1M solution of NaOH  1m solution of NaOH  

Q: A gas storage cylinder in an ordinary chemical laboratory measures 7.7 cm wide and 31. cm high. This...

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Q: 4. Calculate the adiabatic flame temperature attained when methane, at 298 K, is combusted with (a) ...

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Q: The volume of a vacuum manifold used to transfer gases is calibrated using Boyle's law. A 0.251 dm² ...

A: Given :-  Pressure of flask = P1 = 697 Torr  Volume of flask = V1 = 0.251 dm3  Pressure of manifold ...

Q: 3. In the following unbalanced equations, identify the following a) The oxidized element and the red...

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Q: What is the change in Gibbs Free Energy (in kJ/mol) for a reaction that has the following thermodyna...

A: Given- Temperature=77.7°C=(77.7+273)K=350.7K ∆H°rex=-307.7KJ/mol  ∆S°rex=340.6J mol^-1K^-1    

Q: How can you determine a molecular formula whether it is polar or nonpolar?

A: Polar molecule - - > The polar molecule is the molecule which contains negative charge at one end...

Q: Draw here the structure of 2-Chloropropene and encircle or point using arrows the different kinds of...

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Q: Which of the following equation follows the rule of significant figures? O antilog (0.50) = 3.2 O an...

A: Here, we have to find the equation that follows the rule of significant figures.  

Q: 1) What volume of 3.25 M sulfuric acid is needed to prepare 0.500 L of 0.130M H2SO,? 2) How do we pr...

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Q: Calculate the volume in milliliters of a 5.3 mol/L silver nitrate solution that contains 200. g of s...

A: To solve this problem first we will calculate the mole of silver nitrate then volume of solution wil...

Q: Does a reaction occur when aqueous solutions of barium chloride and potassium phosphate are combined...

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Q: Vill precipitation occur if 250 ml of 0.12 M Pb(NO3)2 is mixed with 250 ml of .070 M NaCl ? Ksp PbCl...

A: Concentration of Pb(NO3)2 = 0.12 M Volume of Pb(NO3)2 = 250.0 mL Concentration of NaCl = 0.070 M Vol...

Q: A) OH B) НО. ОН Molecule A is achiral and molecule B is chiral Molecule A is chiral and molecule B i...

A: We have to predict the nature of molecules.  

Q: The reaction A + B C+ D rate = K[A][B]? has an initial rate of 0.0450 M/s. What will the initial rat...

A: To solve this problem we have to calculate the initial rate when reaction concentration is changed.

Q: Given the following parameters, what is the expected absorbance? c = 250 mmol/L l = 0.5 cm ε = 10 M...

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Q: Please complete Table 2 and show the calculations for protein concentration and the concentration of...

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: At what pressure does the mean free path of argon at 25°C become comparable to the diameters o the a...

A: Solution -

Q: A chemist prepares a solution of mercury(I) chloride (Hg,CI,) by measuring out 0.389 mg of mercury(I...

A: given :-  mass of Hg2Cl2 = 0.389 mg  volume of solution = 100. mL  To calculate :-  concentration of...

Q: primary and a secondary alcohol

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Q: Q19: Consider the following elements: CI Ar K Ca Which element has the smallest first electron affin...

A: Electron affinity is energy released when an electron is added in the valence shell in its isolated ...

Q: Determine the percent composition of BF3 if a 75.0 sample of BF3 decomposes and produces 63.1 g of f...

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Q: Which among the following is best used in separating heterogeneous mixtures of solids from liquids? ...

A: Heterogeneous mixture  heterogeneous mixture is a mixture with a non-uniform composition. 

Q: Consider the reaction: A(g) = B(g) Kc= 2.1 Which of the following solution mixtures will produce mor...

A: According to the equation Kc=[B]/[A]. Where the value of [B] will be high  in that case Kc will be h...

Q: Calculate the pH of a 0.506 M solution of NaF. The K, for the weak acid HF is 6.8 × 10-4. pH =

A: The PH of NaF can be calculated as follows

Q: "For the given reaction, write out the translation of a chemical reaction into a sentence (just like...

A: The molecular interpretation will involve the sentence which refers to the number of molecules used ...

Q: Two students determine the percentage of lead in a sample as a laboratory exercise. The true percent...

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Q: In Fehling's reaction aldehyde group of carbohydrate is: a)Product b)Ensuring environment c)Reduc...

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Q: Given the following branches of science, in which among these would Analytical Chemistry not widely ...

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Q: What is the experimental purpose of constructing a standard curve?   a.  To achieve an appropriate...

A: The experimental purpose of constructing a standard curve.,  

Q: What is the ionic strength of a 3:2 electrolyte with a concentration of 0.100 M? O 1.5 M O 16 M O 1....

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

Q: A 0.150 mole quantity of NiCl, is added to a liter of 1.20 M NH, solution. What is the concentration...

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Q: The Ka of hypobromous acid, HOBr, is 2.6x10-9. Calculate the pH of a solution which is composed of ...

A: Given :-  [HOBr] = 0.40 M  [NaOBr] = 0.40 M Ka for HOBr = 2.6 × 10-9  To calculate :-  pH of solutio...

Q: 1. Draw the MO energy level diagram for the hypothetical species that would be formed upon combining...

A: Given:- 1. Draw the MO energy level diagram for the hypothetical species that would be formed upon c...

Q: Which of the following statements is true? O lonic strength is a quantity that only depends on the c...

A: Ionic strength of a solution is equal to half of the product of the concentration and square of char...

Q: Calculating the PH UI A solution is prepared at 25 °C that is initially 0.45M in ammonia (NH,), a we...

A: Initial concentration of ammonia=0.45M  Concentration of ammonium chloride=0.13M  Kb=1.8×10^-5 pH of...

Q: draw the expanded structural formula for the product formed when each of the following is reduced by...

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Q: 6. One reason that copper pipes rather than iron pipes are used in household plumbing is that: A. Ir...

A: Electrochemistry is branch of chemistry in which both oxidation and reduction takes place simultaneo...

Q: A solution is prepared by adding 100.0 mL of a 0.135 M HCI solution to 100.0 mL of a 0.066 M NAOH so...

A: Volume of HCl=100.0mL  Concentration of HCL=0.135M  Volume of NaOH=100mL Concentration of NaOH=0.066...

Q: You are asked to prepare 304 µL of a 1/38 dilution solution from your collected sample. How much yo...

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Q: If you combine 340.0 mL of water at 25.00 oC and 110.0 mL of water at 95.00 oC, what is the final te...

A: We'll use, heat lost by the hot water sample will be equal to the heat absorbed by the water sample....