When the balanced equation for this reaction is:
2Fe + 3H2O → Fe2O3 + 3H2
and according to the formula for vapor pressure:
PV = nRT
when we have P is the vapor pressure H2O = 0.121 atm
and V is the volume of H2O = 4.5 L
and T in Kelvin = 52.5 +273 = 325.5 K
R = 0.08205 atm-L / g mol-K
So we can get H2O
So, with substitution:
n H2O = PV / RT
= (0.121 * 4.5) / (0.08205 * 325.5) = 0.02038 g/mol
n Fe2O3 = 0.02038 * (1Fe2O3 / 3H2O) = 0.00679 g/mol
Note: we get the ratio (1FeO3 / 3H2O) of the balanced equation.
we can get Fe2O3 Mass from this formula:
Mass = number of moles * molecular weight
we have a molecular weight of Fe2O3 = 159.7
= 0.00679 * 159.7 = 1,084 g
So, 1,084 grams will produce Fe2O3
The chemical reaction in the event of chemical change from substances that react (reactants) into substances that result from reactions (products). In chemical reactions, new substances are always produced with new properties. Chemical reactions are written using the element symbol. Let's look at how to express a reaction using symbols.
Material conservation law states that in ordinary chemical reactions no material is lost even though it might change. The number of atoms in reagents must remain the same as those produced, however, they change to form new molecular patterns. If an equation fulfills the conditions, it can be said that the equation is balanced.
Characteristics of Chemical Reactions
When a chemical reaction occurs, there are changes that we can observe. Consider the following characteristics of a chemical reaction.
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Grade: High School
Subject: Chemistry
keywords: The chemical reaction
