Answer:
The answer to your question is 160 g of Fe₂O₃
Explanation:
Data
mass of Fe = 112 g
mass of CO = in excess
mass of Fe₂O₃ = ?
Balanced chemical reaction
Fe₂O₃ + 3CO ⇒ 2Fe + 3CO₂
Process
1.- Calculate the molar mass of Fe₂O₃ and Fe
Molar mass Fe₂O₃ = (56 x 2) + (16 x 3) = 112 + 48 = 160 g
atomic mass of Fe = 56
2.- Use proportions to calculate the mass of Fe₂O₃ needed
160 g of Fe₂O₃ ------------------- 2(56) g of Fe
x g of Fe₂O₃ ------------------ 112 g of Fe
x = (112 x 160) / 2(56)
x = 17920/112
x = 160 g of Fe₂O₃
Answer:
The particles must be in the correct orientation upon impact.
The particles must collide with enough energy to meet the activation energy of the reaction.
Explanation:
This a problem related to chemical kinetics. The collision theory is one of the theories of reaction rates and it perfectly explains how the effectiveness of colliding molecules dictates the pace of a reaction.
For reactions to occur, there must be collisions between reacting particles. It implies that the collision per unit time and how successful collisions are determines the rate of chemical reactions in most cases. Therefore, for a collision to be successful, colliding particle must have enough energy which is greater than the activation energy of the reaction. In order to also produce the desired products, the colliding particles must be properly oriented.
The volume of this sapphire in cubic centimeters is 24.4 cm^3
We have the following information;
Mass of the Blue Giant = 486.52 carats
Density of the blue giant = 3.98 g/cm3
Volume of the blue giant = ?
Since the density is given in g/cm3, we must convert the mass to grams.
We have the conversion factor; 5
carats =
1
g
So;
If 5 carats make 1g
486.52 carats make 486.52 carats × 1g/ 5 carats
= 97.30 g
Since;
Density = mass/volume
Volume = Mass/Density
Volume = 97.30 g/3.98 g/cm3
Volume = 24.4 cm^3
Learn more: brainly.com/question/6034174
