First, you need to find how much moles does 6.59*10^24 atoms of Carbon represents.
The Avogadro number represents one mole of a substance. The Avogadro number is about Na=6.02*10^23.
So, to find the mole number, you divide the number of atoms you have by the Avogadro number: n=N/Na (n=number of mole, N=number of atoms, Na=Avogadro Number).
So n=6.59*10^24/6.02*10^23 = 10.94 moles.
So to find the mass in grams of a certain number of moles, you multiply the mole number by the Molar mass of the substance you're studying.
m=n*M (m=mass in grams, n=number of moles, M=Molar mass)
The molar mass of the carbon is 12.01 g/mol.
So m=10.94 * 12.01 = 131.38 grams.
So There's 131.38 grams in 6.59*10^24 atoms of Carbon.
Hope this Helps! :)
The conclusion of the student would be that the dissolution of ammonium nitrate is endothermic.
<h3>What are endothermic reactions?</h3>
They are reactions in which heat is absorbed from the surrounding. The consequence is that the reaction mixture's temperature is always lower.
Thus, the energy of the products is always higher than the energy of the reactants in endothermic reactions.
For endothermic reactions, the enthalpy change is always positive.
More on endothermic reactions can be found here: brainly.com/question/23184814
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Answer:
It would need to reflect what you said in the introduction. Also it would need to summarize everything you said.
Data:
p = 1 atm
V = 10 m * 8 m * 5 m = 400 m^3 = 400,000 liter
To = 0 + 273.15K = 273.15K
Tf = 20 + 273.15K = 293.15K
No - Nf =?
2) Formula
pV = NRT => N = pV / (RT)
3) solution
No = pV / (RTo)
Nf = pV / (RTf)
=> No - Nf = [pv / R] [ 1 / To - 1 / Tf ]
=> No - Nf = [1atm*400,000liter / 0.0821 atm*liter/K*mol ] [ 1 / 273.15 - 1 / 293.15]
No - Nf = 1216.9 moles ≈ 1217 moles
Answer: 1217 moles
The total number of moles of solute particles present in 1L (exact) of aqueous 0.057 m hno3 is 0.166 mol
Initial moles of HNO3 = 1Lx 0.083 mol HNO3/1 L
The HNO3 is a strong acid that can be completely dissociated in the following way.
HNO3→H + NO
1 mol 1 mol 1 mol
The HNO3 is dissociated into two particles (Kt and NO3). So that,
total moles particles = 0.083 mol (K) + 0.083 mol (NO) = 0.166 mol
The number of moles of solute = mass of solute ÷ molar mass of solute, where mass is measured in grams and molar mass (defined as the mass of one mole of a substance in grams) is measured in g/mol.
Learn more about moles of solute here brainly.com/question/2306123
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