Answer:search definitions
Explanation:
Answer:
no it is dry_____________
Answer:
Mole fraction of hexane in your sample is 0,746
Explanation:
Based on the information you can write the following equations:
X + Y = 1 <em>(1)</em>
Where X is mole fraction of hecane and Y is mole fraction of toluene
Also, based on the assumption that the refractive index of the hexane + toluene mixture varies linearly with mole fraction you can write:
1,375X + 1497Y = 1406 <em>(2)</em>
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Replacing (1) in (2):
1,375X + 1,497(1-X) = 1,406
1,375X - 1,497X + 1,497 = 1,406
-0,122X = -0,091
X = -0,091/-0,122
X = 0,746
Thus, the <em>mole fraction of hexane in your sample is 0,746</em>
Also you can know the mole fraction of toluene replacing this value in (1):
0,746 - Y = 1
Y = 1-0,746
Y = 0,254
I hope it helps!
Answer:
F. 2NO + 02 —> 2NO
H. 4NH3 + 502 —> 4NO + 6H20
Explanation:
The law of conservation of mass states that matter can neither be created nor destroyed during a chemical reaction but can be convert from one form to another.
2NO + 02 —> 2NO
From the above, the total number of N on the left balance the total number on the right i.e 2 atoms of N on both side of the equation.
The total number of O on the left balance the total number on the right i.e 2 atoms of O on both side of the equation. This is certified by the law of conservation of mass.
4NH3 + 502 —> 4NO + 6H20
From the above, the total number of N on the left balance the total number on the right i.e 4 atoms of N on both side of the equation.
The total number of O on the left balance the total number on the right i.e 10 atoms of O on both side of the equation.
The total number of H on the left balance the total number on the right i.e 12 atoms of O on both side of the equation.
This is certified by the law of conservation of mass.
The rest equation did not conform to the law of conservation of mass as the atoms on the left side did not balance those on the right side
