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mylen [45]
3 years ago
5

What type of energy conversion takes place in a voltaic cell?

Chemistry
1 answer:
Mars2501 [29]3 years ago
3 0
Energy<span> is</span>converted<span> into electrical </span>energy<span>. </span>Galvanic cells<span> consist of two separate compartments called half </span>cells<span> containing electrolyte solutions and electrodes that can be connected in a circuit.</span>
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What is the vapor pressure of an aqueous solution made up of 60.0g of urea (CH4N2O) in 180g of water? the vapor pressure of wate
djyliett [7]
To get the answer you use the Law of Raoult.


Raoult's law states that the decrease of the vapor pressure of a liquid is proportional to the molar fraction of the solute.


ΔP = Pa * Xa


Here Pa = 0.038 atm


And Xa = N a / (Na + Nb), where Na is number of moles of A and Nb is number of moles of b


Na = mass of urea / molar mass of urea =  60 g / (molar mass of CH4N2O)


molar mass of CH4N2O = 12 g/mol + 4*1g/mol + 2*14 g/mol + 16 g/mol = 60 g/mol


Na = 60 g / 60 g/mol = 1 mol


Nb = mass of water / molar mass of water = 180g / 18g/mol = 10 mol


Xa = 1 mol / (10 mol + 1 mol) = 1/11 =0.09091


ΔP = Pb * Xa = 0.038 atm * 0.09091 =  0.0035 atm


Then, the final vapor pressure of water is Pb - ΔP = 0.038atm - 0.0035atm = 0.035 atm.


 Answer: 0.035 atm
7 0
3 years ago
Help!!!!!! i have not done science since December!!!!!!! _________ is the distance traveled during a specific unit of time.
Natalka [10]

Answer:

Velocity is the distance traveled during a specific unit of time

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2 years ago
What does the second law of thermodynamics say about entropy?
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the   ansnwer is c  mf kf n dsj njnr kgjrk nj ee h ewfkjhnf ewjn  fnkwfnjnfnfunf

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8 0
3 years ago
Read 2 more answers
which subatomic particle made out of protons neutrons and electrons can charge and still be considered the same element
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Explanation:

6 0
3 years ago
An atom of sodium-23 (atomic number = 11) has a positive charge of +1. Given this information, how many
Elena-2011 [213]
Proton number is the same as atomic number = 11
as electrons have a mass which is so small its counted as 0 and protons and neutrons relative mass is 1 
the number of neutrons = 23- 11 = 12 neutrons
In a neutral atom the number of electrons= number of protons but here we have a +1 ion so there is one less electron then proton therefore the number of electrons = 10
5 0
3 years ago
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