Scientific notation is a system for writing and working with numbers that makes it much easier to deal with numbers that are very small or very large. 3 000 000 000 000 000 000 000 000 000 000 000 000 000 tons, ... This makes it convenient to represent very large or very small numbers using exponential notation.
Moles of O = atom / avogadro's number = 2.55*10^24 / 6.022*10^23 = 4.23 mol
<span>since each N2O3 contains 3 O atoms: </span>
<span>moles of N2O3 = moles of O / 3 = 1.41 mol
I searched on google sorry!</span>
Hey there!:
Total volume of wine = 750ml
volume ℅ of ethanol = 12
%
volume of ethanol = (12ml/100ml)*750ml = 90ml
Density of Ethanol = 0.789 g/ml
Mass of Ethanol = 0.789 g/ml × 90ml = 71.01 g
Molar mass of ethanol = 46 g/mol Nº of mole of ethanol = Mass/molar mass
=> 71.01 g /46(g/mol)= 1.5437 moles
Hope this helps!
Answer:
The answer is C.
"The atomic number and mass number."
Explanation:
Got it right on Edge!
Have a good day!
Answer : At temperatures greater than this reaction is spontaneous under standard conditions.
Explanation : Given,
= 131.3 KJ/mole = 131300 J/mole
= 127.6 J/mole.K
Gibbs–Helmholtz equation is :
As per question the reaction is spontaneous that means the value of is negative or we can say that the value of is less than zero.
The above expression will be:
Now put all the given values in this expression, we get :
Therefore, at temperatures greater than this reaction is spontaneous under standard conditions.