Answer my question please - A group of students performedelectrolysis of the copper sulfatesolutionby using copperelectrodes and recorded theresults in the following table.Experiment (amp.) T(s) Mass ofcathodebeforeelectrolysise(1)1801.24(2)4 1801.2(3)23601.34(4)8901.51Study it well and then answerthe following:- The mass of cathode afterelectrolysis in experiment (4)equal........(a) 1.75 g(b) 1.58 g(C) 1.44 g(d) 1.36 gaII2. equal 1.45 g,then the mass of cathode afterelectrolysis equal . .(a) 1.21g(b) 1.69 g(C) 1.45 g(d) 1.36 gabd- The blue color of copper sulphatesolution in the previousexperiments ......(a) remains constant(b) Decreases(C) Increases(d) becomes darkII

Electrolysis of cupper sulfate causes deposition of Cu in cathode .

Answered: - The blue color of copper sulphate…

- The blue color of copper sulphate solution in the previous experiments . (a) remains constant (b) Decreases (C) Increases a (d) becomes dark

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter1: The Atom In Modern Chemistry

Section: Chapter Questions

Problem 11P

See similar textbooks

Related questions

Q: Calculate K for the

Q: Question 19) is the following correct? if not which is the correct option

A: In this question, we have to determine which of the given names,i.e., Dehydrogenase, Glycosis,…

Q: ulate K for

Q: .What is solubility parameter, give its equation.

Q: What is the solubility product constant for

A: We will calculate Ksp

Q: The molar solubility of lead bromide in a 0.119 M lead nitrate solution is __ M

A: Since in lead nitrate the reaction will be Pb(NO3)2 ----> Pb2+ + 2NO32- Since lead nitrate is…

Q: What would be net equation be for sodium acetate with boric acid added to produce a solution?…

Q: The maximum amount of silver chloride that will dissolve in a 0.221 M silver nitrate solution is М.

A: AgCl (s) ↔ Ag+ (aq) + Cl- (aq) If silver chloride dissolves in 0.221 M silver nitrate solution, then…

Q: The molar solubility of iron(III) sulfide in a water solution is M.

A: For a salt AxBy, If molar solubility is S mol/l and solubility product is Ksp…

Q: What is being monitored by the titartion curve in the redox reaction? titration reaction's potential…

Q: give a Possible use of an acid-base titration with brief scientific details and equations.

A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

Q: The molar solubility of manganese(II) sulfide in a 0.300 M manganese(II) nitrate solution is М.…

A: 1.) Given: Molarity of manganese(II) nitrate solution is 0.300 M. Introduction: A 0.300 M solution…

Q: The molar solubility of aluminum phosphate in a 0.102 M aluminum acetate solution is М.

A: Common ion effect decreases the solubility of a salt in the solution. When aluminum phosphate is…

Q: The molar solubility of iron(II) carbonate in a 0.110 M iron(II) nitrate solution is М.

A: Given :: Molarity of Fe(NO3)2 = 0.110 M Ksp of FeCO3 =3.07×10-11 Molar solubility (S) of FeCO3 in…

Q: Second slide: A Picture from the internet of a Titration. The words titration, primary and secondary…

Q: Chemistry 7. According to activity rules: When you drop zinc sulfate into calcium solid,, calcium…

A: Here we are required to find whether the statement is correct or incorrect

Q: Solid ammonium chloride and solid lead nitrate are allowed to completely dissolve in solution. Will…

A: Double decomposition reaction are those reaction where the metal of two salt exchange there place to…

Q: You dissolve an Al determine that 0.81 relevant calculation. Recall from the intr dissociate to give…

A: The main chemical component present in Alka Seltzer is sodium bicarbonate.

Q: te the value of K for

Q: The maximum amount of calcium phosphate that will dissolve in a 0.221 M sodium phosphate solution is

A: Given : Concentration of sodium phosphate = 0.221 M

Q: The maximum amount of silver iodide that will dissolve in a 0.286 M silver nitrate solution is М.

Q: Describe the systems that involves with the ionic species. Provide the related equation.

Q: The maximum amount of silver chromate that will dissolve in a 0.134 M silver acetate solution is М.

Q: What are/is the disadvantage(s) of using iodine solution as a titrant? A Iodine can sublime. B odine…

A: The correct option is (D) Iodine can sublime at room temperature and at high temperatures,…

Q: The maximum amount of lead carbonate that will dissolve in a 0.232 M lead nitrate solution is М.

A: Recall the dissociation reaction and expression of Ksp of lead chloride…

Q: The immediate product of the acidification of a carbonate salt is carbonic acid, H2CO3, which…

A: The answer to the following question is-

Q: The value of AS°

Q: In aqueous solution the Hgion forms a complex with four bromide anions. Write the formation constant…

Q: Is a mixture uilibrium? If:

A: N2O4 <--> 2 N2O(g) at equilibrium…

Q: Write the hydrolysis reaction for aluminum nitrate in the ionic and molecular forms and notice the…

Q: Consult a periodic table.does the location of the anion and / or the metal ion on the periodic table…

A: Dear student, we know that the elements in the periodic table can be classified into blocks; s…

Q: The maximum amount of magnesium carbonate that will dissolve in a 0.209 M magnesium acetate solution…

A: Given : Molarity of Magnesium carbonate solution is 0.209M. To Determine : Maximum amount of MgCO3…

Q: Titrant is usually in. In beaker. In buret. In a conical flask.

Q: The molar solubility of calcium hydroxide in a 0.130 M calcium acetate solution is

Q: When Cu metal is allowed to react with concentrated Nitric Acid, the bluish-green solution formed is…

A: Concept: when copper react with HNO3 then there will be oxidation of Cu to Cu+2. Because HNO3 is a…

Q: olution, what is the

A: 100mL of 2% of Na2CO3 solution means 2g of Na2CO3 dissolved in 100mL Solution. [ 1mL = 10^-3 L so…

Q: Write a chemical equation for the dissolution of mercury(I)chloride in water, and give its…

A: Mercury(I) chloride dissolves in water to form ions. Write the complete reaction.…

Q: At which codition is an exact amount of acid used to titrate a certain amount of base achieved?…

A: We know that, Acid can titrate with base to neutralise the solution to find equivalent point.

Q: The initially red color has faded in the course of the reaction. Briefly explain why did the color…

A: Bromination of alkene .

Q: What is the chemistry behind the following: b. Presence of salt that will increase rusting of…

A: Oxidation of metal is behind the rusting of metal.

Q: The molar solubility of silver sulfide in a water solution is M.

A: We know according to solubility rule most of sulfide are insoluble in water. So solubility product…

Q: Balence the equation

A: The chemical equations should be balanced because, according to the law of conservation of mass.…

Q: Select that fits as bronsted lowry concept from options. Give clear handwritten explanation.

A: Bronsted-Lowry acid-base theory: The Bronsted-Lowry acid-base theory states that the acid is a…

Question

100%

Answer my question please

- A group of students performed
electrolysis of the copper sulfate
solution
by using copper
electrodes and recorded the
results in the following table.
Experiment (amp.) T(s) Mass of
cathode
before
electrolysise
(1)
180
1.24
(2)
4 180
1.2
(3)
2
360
1.34
(4)
8
90
1.51
Study it well and then answer
the following:
- The mass of cathode after
electrolysis in experiment (4)
equal.
.......
(a) 1.75 g
(b) 1.58 g
(C) 1.44 g
(d) 1.36 g
a
II
2.

equal 1.45 g,
then the mass of cathode after
electrolysis equal . .
(a) 1.21g
(b) 1.69 g
(C) 1.45 g
(d) 1.36 g
a
b
d
- The blue color of copper sulphate
solution in the previous
experiments .
.....
(a) remains constant
(b) Decreases
(C) Increases
(d) becomes dark
II

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 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

To obtain 26.255g Neon?
In the presence of nitric acid, UO2+ undergoes a redox process. It is converted to UO22+ and nitric oxide (NO) gas is produced according to the following unbalanced equation: H+(aq)+NO3(aq)+UO2+(aq)NO(g)+UO22+(aq)+H2O(l) If 2.55 102 mL NO(g) is isolated at 29C and 1.5 atm, what amount (moles) of UO2+ was used in the reaction? (Hint: Balance the reaction by the oxidation states method.)
The use of silica to form slag in the production of phospho-rus from phosphate rock was introduced by Robert Boyle morethan 300 years ago. When fluorapatite [Ca₅(PO₄)₃F] is used inphosphorus production, most of the fluorine atoms appear in theslag, but some end up in toxic and corrosive SiF₄ (g).(a) If 15% by mass of the fluorine in 100. kg of Ca₅(PO₄)₃F forms SiF₄, what volume of this gas is collected at 1.00 atm andthe industrial furnace temperature of 1450.°C?(b) In some facilities, the SiF₄ is used to produce sodium hexa-fluorosilicate (Na₄SiF₆) which is sold for water fluoridation: 2SiF₄(g)+Na₂CO₃(s)+H₂O(l) →Na₂SiF₆(aq)+SiO₂(s)+CO₂(g)+2HF(aq) How many cubic meters of drinking water can be fluoridated toa level of 1.0 ppm of Fusing the SiF₄ produced in part (a)?
In the alloy containing sn pb and cd, the mole ratio sn/pb is 2.73/1 and the mass ratio of pb/cd is 1.78/1, the percentage of cd by mass in the alloy
A sample of ferrous oxide has actual formula Fe93O1.00. In this sample what fraction of metal ions are Fe2+ions? What type of nonstoichiometric defect is present in this sample?
The key reaction (unbalanced) in the manufacture of syn-thetic cryolite for aluminum electrolysis is HF(g)+ Al(OH)₃(s) +NaOH(aq) →Na₃AlF₆(aq) +H₂O(l) Assuming a 95.6% yield of dried, crystallized product, whatmass (in kg) of cryolite can be obtained from the reaction of 365 kg of Al(OH)₃, 1.20 m3of 50.0% by mass aqueous NaOH (d=1.53 g/mL), and 265 m³ of gaseous HF at 305 kPa and 91.5°C? (Assume that the ideal gas law holds.)
Magnesium is used in lightweight alloys for airplane bod-ies and other structures. The metal is obtained from seawater ina process that includes precipitation, neutralization, evaporation,and electrolysis. How many kilograms of magnesium can be ob-tained from 1.00 km³ of seawater if the initial Mg²⁺ concentra-tion is 0.13% by mass (d of seawater= 1.04 g/mL)?
The gravimetric analysis of a 11.432-gram sample of silver ore yields 4.918 grams of silver iodide [MW=234.77 g/mole]. Determine the percent by weight of silver metal [At.Wt. = 107.868 g/mole] in the ore.
The lead(IV) oxide used in car batteries is prepared by coat-ing the electrode plate with PbO and then oxidizing it to leaddioxide (PbO₂). Despite its name, PbO₂ has a nonstoichiometricratio of lead to oxygen of about 1/1.98. In fact, the holes in the PbO₂ crystal structure due to missing O atoms are responsiblefor the oxide’s conductivity. (a) What is the mole % of O miss-ing from the PbO₂ structure? (b) What is the molar mass of the nonstoichiometric compound?
For the gravimetric determination of manganese, 1.8762 g of sample containing Mn was dissolved in acid solution and made up to 100 mL in a calibrated volumetric flask. A 25.00 mL aliquot of this solution was transferred to a beaker. The solution was heated to boiling and chemical substances required were added till precipitating MnNH4PO4. After filtering, rinsing, and igniting, 0.5365 g of Mn2P2O7 was obtained. Calculate the % manganese in the sample (Mn: 55, P: 31, O: 16 g/mol).
When water is decomposed by electrolysis, what volume of oxygen at 25oC and 750. mm Hg isproduced when 1.25 g of hydrogen is formed?
One method of removing CO2(g) from a spacecraft is to allow the CO2 to react with LiOH. 2LiOH(s)+CO2(g)→Li2CO3(s)+H2O(l) How many liters of CO2(g) at 23.6 ∘C and 1.00 barr can be removed per 9 kg of LiOH consumed?