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
Alexxandr [17]
2 years ago
10

A battery contains two metals that have different tendencies to attract electrons. If one is lithium with an electron affinity o

f −3.05, and the other is zinc with an electron affinity of −0.76, describe how the electrons will flow. Then, describe how you could make this an even stronger battery.
Chemistry
2 answers:
Vitek1552 [10]2 years ago
4 0

Answer:

I know that the electrons flow would be:  The electrons will flow from lithium to zinc.

Explanation:

But I also dont know what would make this an even stronger battery.

tekilochka [14]2 years ago
4 0

Answer:

Electrons will flow from Zinc to Lithium

Explanation:

Since lithium has an electronegativity value of -3.05, this means that it has a very strong attraction to electrons. So a element with less electronegativity (zinc) will end up having its electrons pulled away, since electrons flow from least electronegative to most electronegative.

As for making the battery stronger, we can change it so that we use different metals with an even greater difference in electronegativity.

You might be interested in
The 488 nm laser is shine on a lithium metal whose work function is 2.9 eV will you be able to see any photoelectrons? if yes wh
nalin [4]

Answer:

There will not be any ejection of photoelectrons

Explanation:

Energy of the photon= hc/λ

Where;

h= Plank's constant

c= speed of light

λ= wavelength of the incident photon

E= 6.6×10^-34 × 3 ×10^8/488 × 10^-9

E= 4.1 ×10^-19 J

Work function of the metal (Wo)= 2.9 eV × 1.6 × 10^-19 = 4.64 × 10^-19 J

There can only be ejected photoelectrons when E>Wo but in this case, E<Wo hence there will not be any ejection of photoelectrons.

3 0
3 years ago
The pH of 0.10 M solution of an acid is 6. What is the acid dissociation constant of the acid?
svlad2 [7]

Answer: Dissociation constant of the acid is 10^{-11}.

Explanation: Assuming the acid to be monoprotic, the reaction follows:

                         HA\rightleftharpoons H^++A^-

pH of the solution = 6

and we know that

pH=-log([H^+])

[H^+]=antilog(-pH)

[H^+]=antilog(-6)=10^{-6}M

As HA ionizes into its ions in 1 : 1 ratio, hence

[H^+]=[A^-]=10^{-6}M

As the reaction proceeds, the concentration of acid decreases as it ionizes into its ions, hence the decreases concentration of acid at equilibrium will be:

[HA]=[HA]-[H^+]

[HA]=0.1M-10^{-6}M

[HA]=0.09999M

Dissociation Constant of acid, K_a is given as:

K_a=\frac{[A^-][H^+]}{HA}

Putting values of [H^+],[A^-]\text{ and }[HA] in the above equation, we get

K_a=\frac{(10^{-6}M).(10^{-6}M)}{0.09999M}

K_a=1.0001\times 10^{-11}M

Rounding it of to one significant figure, we get

K_a=1.0\times 10^{-11}M\approx 10^{-11}M

6 0
2 years ago
Given the following isotopes of strontium, calculate the average atomic mass.
vodka [1.7K]

Answer:

87.5198

Explanation:

(43.65 * 87.05) + (48.25 * 87.93) + (8.11 * 87.50) = 8751.98

8751.98 / 100 = 87.5198

3 0
2 years ago
Which of these is a compound?<br> carbon dioxide<br><br> potassium<br><br> salt water<br><br> salad
Alona [7]
Carbon dioxide is a compound.
5 0
3 years ago
Read 2 more answers
Hydrogen iodide can decompose into hydrogen and iodine gases. 2 HI(g) H2(g) + 12(g) Kp for the reaction is 0.016. If 0.350 atm o
solniwko [45]

Answer : The total pressure at equilibrium is 0.350 atm

Solution :  Given,

Initial pressure of HI = 0.350 bar

K_p = 0.016

The given equilibrium reaction is,

                             2HI(g)\rightleftharpoons H_2(g)+I_2(g)

Initially                  0.350           0       0

At equilibrium       (0.350-2x)    x       x

The total pressure at equilibrium = (0.350-2x)+x+x=0.350-2x+2x=0.350atm

Thus, the total pressure at equilibrium is 0.350 atm

4 0
2 years ago
Other questions:
  • Cci(4) will be soluble in
    12·1 answer
  • When 1.2383 g of an organic iron compound containing Fe, C, H, and O was burned in O2, 2.3162 g of CO2 and 0.66285 g of H2O were
    12·1 answer
  • Some soils are made mostly of loess. loess is silt-sized sediment deposited by _______.
    10·2 answers
  • . Which of the following does not illustrate an effective way of coping with a major frustration?A. Leslie loved clothes and hop
    6·1 answer
  • Which element is this.Its shiny,Is solid at room temperature, has atoms with two valence electrons?A:Lithium B:Strontium C:Alumi
    11·1 answer
  • An ice cube melts and then the liquid water evaporates. Which statement is true about the mass of water that goes through each c
    8·1 answer
  • Which element is least likely to react with other elements
    5·2 answers
  • Based on their electronegativities, you would expect ____ elements to pull on electrons more strongly than ______ elements.
    15·1 answer
  • Calculate the joules of heat needed to cool 159 g of water at 100 c to water at 65c
    9·1 answer
  • How many moles are present in 3.4 x 1023 atoms of Na?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!