Question

Why is the reference electrode placed near the working electrode in a three electrode cell?

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

General Chemistry

Related Chemistry Q&A

Find answers to questions asked by students like you.

Q: 1. H2, Pd/CaCO3, quinoline 2а. ВH;:THF 2b. H2O2, NaOH

A: The given reaction sequence produces a less substituted alcohol.

Q: E-H please

A: E The HBr reacts with –OH present in given compound via nucleophilic substitution mechanism which ge...

Q: What is the molarity of ethylene glycol (C2H6O2, 62.07 g/mol) in an aqueous solution if the molality...

A: Assuming we have 1 Kg of solvent i.e 1000 g of solvent Since molality of ethylene glycol is 1.00 m H...

Q: A 100.0 mL100.0 mL solution of 0.0200 M Fe3+0.0200 M Fe3+ in 1 M HClO41 M HClO4 is titrated with 0.1...

A: The balanced titration is as follows : The two half reactions that occur at the indicator electrode...

Q: Solid aluminum and gaseous oxygen react in a combination reaction to produce aluminum oxide:        ...

A: Given, mass of Al (s) = 5.0 g            mass of O2 (g) = 5.0 g Now, moles of Al (s) and O2 (g) reac...

Q: What is the pH of a solution that is 0.32 M KOCN and 0.10 M HOCN (cyanic acid)?

A: Since cyanic acid is a weak acid with pKa = 3.46  And the solution is having HOCN i.e cyanic acid an...

Q: How many grams of \(\rm H_2\) are needed to produce 14.41 \({\rm g}\) of \(\rm NH_3\)? Express your...

A: The reaction to produce ammonia from hydrogen is given by  N2 + 3 H2 ------> 2 NH3   

Q: Help me solve question a), b), c), d) and e)

A: Alkyne reduces to Trans alkene in the presence of Na, NH3.And forms enol with BH3, NaOH. Alkene unde...

Q: 8). When you measured the pH of an aqueous 0.1 M NH,CI in the lab, the pH is 5.1. Why is the solutio...

A: NH4Cl is a salt made up of cation NH4+ and anion Cl-   

Q: What is a bonding molecular orbital?

A: The concept of bonding molecular orbital comes from molecular orbital theory. This theory was propos...

Q: Using data in the following image.  Please determine the reaction order with respect to each reactan...

A: Click to see the answer

Q: Show the product(s) with the correct stereochemistry, if applicable. -CH2CH3 1. ВНз, THF 2. Н2О2, ОН...

A: Click to see the answer

Q: The following chemical reaction is exothermic releasing 283 KJ/mole of heat.  CO(g) + ½O2(g) ⟷ CO2(g...

A: The reaction given is CO(g) + ½O2(g) ⟷ CO2(g)   

Q: SFC combines  important advantages of gas and liquid chromatography. It is especially useful for ana...

A: The chromatography is the separation technique used for identification and separation of compounds o...

Q: The pH of the buffer solution that formed between CH3COOH and CH3COONa is 4.97. What is the ratio of...

A: pH is used to determine the concentration of hydronium ion.

Q: Identify the relationship between the following pairs of structures, then state whether they are ena...

A: Click to see the answer

Q: Which of the following Lewis structures would be an expansion to the octet rule? Select one: a. N...

A: The Lewis structure or molecular skeleton is also known as electron dot structure. It is the complet...

Q: Predict the major organic product of the following reaction sequence. Styrene (1.53 g, 0.011 mol) in...

A: The reactant is styrene which is reacted with methanol and mercuric acetate. After that sodium hydro...

Q: Acids/Bases: a.) Write the acid or base dissociation equation for Sr(OH)2 b.) Calculate the pH of a ...

A: As an aqueous solution of strontium hydroxide dissociates completely in water because it is strong b...

Q: 52). In which reaction is AS°xn expected to be negative? a. 2C2H6(g) + 702(g) → 4CO2(g) + 6H2O(1) b....

A: To predict the sign of ΔSorxn of any reaction, we check for the components present in reactant and p...

Q: Question in Image.

A: Homoacetogens are a group of bacteria that produce selectively acetic acid from organic matter.

Q: The pH of a household ammonia solution is 11.75. a.) Write the acid or base dissociation equation fo...

A: The pH of a household ammonia solution is 11.75. a.) The acid or base dissociation equation for ammo...

Q: Write the products of the following sequences of reactions. Refer to your reaction roadmap to see ho...

A: The given reaction is addition and substitution reaction in reagent 1 and 2 respectively. Addition r...

Q: Determine the number of grams of HCl that can react with 0.750 gram of Al(OH)3 according to the foll...

A: Click to see the answer

Q: Write equations for the reaction of 1-butanol with   reagent. Where you predict no reaction, write N...

A: The reaction is as given below:   

Q: The oxidation number of iron in Fe2O3 is ________. Select one: a. -3 b. +1 c. -2 d. +3 e. +2

A: Oxidation state or oxidation number refers to the number assigned to the atom of a chemical compound...

Q: A pipet is used to transfer 5.00 mL of a 1.25 M stock solution in flask “S” to a 25.00-mL volumetric...

A: In the given problem, the molarity of the serially diluted solution can be calculated by using the r...

Q: What is the pH of a solution that is 0.26 M CH3NH2 (methylamine) and 0.38 M CH3NH3Cl (methylammonium...

A: The basic buffer may be explained as the solution mixture which hold the weak base along with its re...

Q: Copper(II) fluoride contains 37.42% F by mass. Calculate the mass of fluorine (in g) contained in 55...

A:                                          

Q: Name  compound

A: Following points should be kept in mind while naming an organic compound: The parent chain should c...

Q: determine the number of molecules of Cr2O3 that form when 1.34X10^3 gram of oxygen completely reacts...

A: The reaction given is 4 Cr (s) + 3 O2 (g) -----> 2 Cr2O3 (s) Given : mass of O2 = 1.34 X 103 g = ...

Q: A state of dynamic equilibrium exists between the solid sucrose (table sugar) molecules, C12H22O11, ...

A: When the rate of forward reaction is equal to the rate of backward reaction then system is known as ...

Q: Arrange these compounds in order of increasing solubility in water. HO. Cl. НО Cl 1-Butanol 1-Propan...

A: Polar molecules are soluble in water and non-polar molecules are not soluble in water. As the number...

Q: 16.62

A: Answer to 16.62:

Q: How many grams of \(\rm NH_3\) can be produced from 2.42 \({\rm mol}\) of \(\rm N_2\) and excess \(\...

A: The reaction taking place will be  N2 + H2 ------>  NH3  Balancing : Since we have 2 N in LHS. He...

Q: A 0.951-g sample containing (NH4)2C2O4 and compounds was dissolved in water and made alkaline with K...

A: Click to see the answer

Q: For each reaction, calculate AHan ASn and AGan at 25 "C and state whether or not the reaction is spo...

A: Standard heat of formation of N2O4 (ΔHfo) = 9.16 KJ/mol. Standard heat of formation of NO2 (ΔHfo) = ...

Q: Chemistry Question

A: Click to see the answer

Q: Write equations for the reaction of 2-butanol with   reagent. Where you predict no reaction, write N...

A:  2-butanol  + HI  ---------- >  ??????

Q: Of the following, which gives the correct order for atomic radius for Mg, Na, P, Si and Ar?   Sel...

A: As all elements are found in the same period (3) of the periodic table. On moving from left to right...

Q: Write the products of the following sequences of reactions. Refer to your reaction roadmap to see ho...

A: The given alkane would undergo free-radical bromination in the presence of light to give a monosubst...

Q: Determine the pH at the point in the titration of 40.0 mL of 0.200 M HC₄H₇O₂ with 0.100 M Sr(OH)₂ af...

A: Any acid/alkali's strength defines any solution's pH. The strong acid's presence with weak base defi...

Q: Draw the Lewis structure for CH3CH2F Mention the shape of the molecule around each C atom. Is the mo...

A: Click to see the answer

Q: The structure of estrone, a female sex hormone, is shown below. Highlight and identify all of the fu...

A: The structure of estrone given is  Hence the below shown functional groups present in it. 1) C=O :...

Q: A 1.4890 g sample of M(OH)2 was mixed with 21.55 mL of 3.015 M HCl and enough water to make 100 mL o...

A: As from the reaction 1 mole of NaOH reacts with 1mole of HCl. Number of moles of NaOH = Molarity × V...

Q: Consider the following statement  in reference to SN1, SN2, E1, and E2 reactions of haloalkanes. To ...

A: Following are the characteristics of SN1 reaction: The rate of the reaction is dependent only upon ...

Q: Propose a mechanism to account for this acid-catalyzed dehydration. OH H,SO, + H,O heat (racemic)

A: Click to see the answer

Q: Help me solve all the sub questions

A: Click to see the answer

Q: Rate Law = k[C][D] Reaction rate is 0.0230 M/s [C]= 0.125M  [D]= 0.065 Find rate constant

A: Click to see the answer

Q: Select the member of each pair that shows the greater rate of SN2 reaction with KN3 in acetone.

A: SN2 reaction rate depends upon the steric effect. Higher the steric hindrance, lower would be the ra...