Answer:
I believe they deserve to be here.
Explanation:
Mass percentage is defined as the ratio of mass of the element to the total mass of the compound.
The formula of mass percentage is given by:
Mass percentage = (1)
mass of nitrogen = 56.00 grams
Let x be the total mass of the compound.
Put the given values in formula (1):
x=
x= 151.92 g
total mass of the compound = 151.92 g
To calculate the mass of oxygen in grams, subtract the mass of nitrogen from the total mass of the compound.
Mass of oxygen = 151.92 g - 56 .00 g = 95.92 g
Thus, mass of oxygen in grams = 95.92 grams.
1) Equilibrium reaction:
<span>2NO2 <----> N2O4 + 57.2 kJ
2) The quantity 57.2 kJ on the right side indicates that the reaction generates heat, i.e. it is exothermic.
When you increase the temperature of an equilibrium chemical reaction that is exothermic you displace the equilibrium to the left, meaningh that more ractant will be formed..
Answer: the equilibrium will be displaced to the left producing more reatant, NO2.
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