<h2>Answer:</h2>
He is right that the energy of vaporization of 47 g of water s 106222 j.
<h3>Explanation:</h3>
Enthalpy of vaporization or heat of vaporization is the amount of energy which is used to transform one mole of liquid into gas.
In case of water it is 40.65 KJ/mol. And 18 g of water is equal to one mole.
It means for vaporizing 18 g, 40.65 kJ energy is needed.
So for energy 47 g of water = 47/18 * 40.65 = 106.1 KJ
Hence the student is right about the energy of vaporization of 47 g of water.
Answer:
After experiencing inescapable brutalities as a prisoner in a Nazi concentration camp, Mr. Stermberg becomes apathetic, stopped eating, and gave up all efforts to physically survive the ordeal. His reaction …
Explanation:
Answer : The concentration of the sodium hydroxide solution is, 0.521 M
Explanation :
To calculate the concentration of base, we use the equation given by neutralization reaction:
where,
are the n-factor, molarity and volume of acid which is
are the n-factor, molarity and volume of base which is NaOH.
We are given:
Putting values in above equation, we get:
Thus, the concentration of the sodium hydroxide solution is, 0.521 M
And oh her skies
Sing songs of love
As she tells me tales
Of her ways and her heart
She's crying and weeping,
can't you hear?
We're killing her body
Still she gives us her tears
We drink them with haste
And we drink them with greed
But enough is enough:
It is us that she needs
And I see a future
In which we see
That there is no divide
Between you and me
Because we share the same mother
So of course it's true
That there is no divide
Between me and you
I am you
and we are her
She is the home
Where we were birthed
The only reason we're killing our home
Is the belief the divide is real
But we are starting to see that there was never a line
We're beginning to start to heal
It may not feel like it,
But I believe we are
Because with every great change
Lies awareness at the heart
We may think we are fighting
The rich with all their greed
But they are killing themselves:
We are equal in our need
Because we can go on
And cut down the trees
It I make money for the rich
But it won't make them breathe
Answer:
Tri.
Explanation:
''Tri'' is the Greek prefix used to represent the CH3 because there are three hydrogen atoms to form the covalent compound so in Greek method ''Tri'' is used for three. In Greek system, there are certain names for prefixes such as ''di'' is used for two, ''tri'' is used for three, ''tetra'' is used for four etc. This method only provides information about the number of atoms that form the covalent compound.