1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andrews [41]
3 years ago
12

A voltaic cell is constructed from a standard Ni2+|Ni half cell (E°red = -0.250V) and a standard Fe3+|Fe2+ half cell (E°red = 0.

771V). (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is:
Chemistry
1 answer:
tester [92]3 years ago
7 0

Answer:

Anode half reaction equation:

Ni(s)------> Ni^2+(aq) + 2e-

Explanation:

Looking at the values of reduction potential given in the question, Ni2+|Ni half cell has a more negative reduction potential than the Fe3+|Fe2+ half cell. The more negative the reduction potential of a half cell, the more its tendency to act as the anode. Hence based on the half cell reduction potentials presented in the question, Ni2+|Ni is the anode while the other is the cathode.

You might be interested in
Equivalent mass of AL2O3​
Maru [420]

Answer:

Mass = 102g

Explanation:

Given

Compound: Al_2O_3

Required

Determine the equivalent mass

In the above compound, we have: 2 Al and 3 (O)

The atomic mass of Aluminium is:

Al = 27

The atomic mass of Oxygen is:

(O) = 16

So, the equivalent mass is:

Mass = 2 * 27 + 3 * 16

Mass = 54 + 48

Mass = 102g

5 0
3 years ago
I need help with these two
bearhunter [10]

Answer:

6. d,  7. a

Explanation:

6. Molarity is a number of moles solute in 1 L solution.

7. 1 L solution - 2.5 mol K2CO3

 20 L             - x mol K2CO3

x  =20*2.5/1 = 50 mol K2CO3

Molar mass(KCO3) = M(K) + M(C) + 3M(O)= 39 +12 +3*16= 99 g/mol

99 g/mol *50 mol = 4950 g KCO3 Closest answer is A.

Actually KCO3 does not exist, in reality it should be K2CO3.

3 0
3 years ago
Which temperature is a greater 400°K or 100 °F*
Murljashka [212]

Answer: 400° kelvin

Explanation:

400° k translates to about 260° fahrenheit, and 260 > 100!

just ask if you need it in celsius :3

5 0
3 years ago
Read 2 more answers
3.5 x 1024<br> 6.02 x 1023
kvv77 [185]

3.5

x

⋅

1024

=

3584

x

6.02

x

⋅

1023

=

6158.46

x

6 0
3 years ago
A)How many moles of O2 are required for the complete combustion of 2.2 g of C3H8 to form CO2 and H2O?
Oksana_A [137]
<span>A)How many moles of O2 are required for the complete combustion of 2.2 g of C3H8 to form CO2 and H2O?

C3H8 + 5O2 = 3CO2 + 4H2O

2.2 g C3H8 ( 1 mol / 44.11 mol ) ( 5 mol O2 / 1 mol C3H8) = 0.25 mol O2


b)A 65.25 g sample of CuSO4•5H2O (M = 249.7) is dissolved in enough water to make 0.800 L of solution. What volume of this solution must be diluted with water to make 1.00 L of 0.100 M CuSO4?

M1V1 = M2V2
[65.25 ( 1 / 249.7 )/ 0.800 L] (V1)= 0.100  (1.00 L)
V1 = 0.31 L or 310 mL </span>
4 0
4 years ago
Other questions:
  • Rifampin is a nonspecific cyp450 inducer that may:
    6·1 answer
  • What is the difference between two atoms of carbon having the same number of neutrons?
    11·1 answer
  • After taking a hot shower you may notice that the room gets steamy and the mirror is foggy you might also notice that there is m
    7·1 answer
  • Aq. sodium oxalate reacts with aq calcium chioride to form solid calcium oxalate and aq. sodium chloride
    11·1 answer
  • In a transverse wave , the motion of the disturbance is ________ to the wave motion?​
    10·1 answer
  • Which tools do meteorologists use to help create weather forecasts? Choose ONE answer:
    7·2 answers
  • How do you convert 212.26 grams of potassium phosphate to moles?
    13·1 answer
  • How many moles are there in 8.50 X 1024 molecules of sodium sulfate, Na2SO3?
    9·1 answer
  • Attractive forces of liquids allow for _____.
    15·2 answers
  • An unknown gas effuses at a rate of 2.0 times the rate of Cl₂. What is the molar mass of the unknown gas?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!