The correct answer is polymerization. The synthesis of giant molecules from components of repeating units is polymerization. Polymerization is the process of reaction of molecules together in a chemical reaction that results into a polymer chain.
Answer:
P₂ = 299.11 KPa
Explanation:
Given data:
Initial volume = 600 mL
Initial pressure = 70.00 KPa
Initial temperature = 20 °C (20 +273 = 293 K)
Final temperature = 40°C (40+273 = 313 K)
Final volume = 150.0 mL
Final pressure = ?
Formula:
P₁V₁/T₁ = P₂V₂/T₂
P₁ = Initial pressure
V₁ = Initial volume
T₁ = Initial temperature
P₂ = Final pressure
V₂ = Final volume
T₂ = Final temperature
Solution:
P₂ = P₁V₁ T₂/ T₁ V₂
P₂ = 70 KPa × 600 mL × 313 K / 293K ×150 mL
P₂ = 13146000 KPa .mL. K /43950 K.mL
P₂ = 299.11 KPa
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Explanation:
The chemical reaction that occurs between , and to form cryolite (molecular formula: ) is:
The balanced reaction is:
In order to determine the weight of cryolite produced, the limiting reactant (the reactant that is completely used up in the reaction) should be identified first. To determine the limiting reactant, the number of moles of each reactant with respect to cryolite () should be calculated.
The formula for determining the number of moles is:
1. For :
According to the balanced equation, 1 mole of reacts to give 2 moles of .
Molar mass of
So,
Number of moles =
2. For :
According to the balanced equation, 6 mole of reacts to give 2 moles of .
Molar mass of
So,
The number of moles =
3. For :
According to the balanced equation, 12 moles of reacts to give 2 moles of .
Molar mass of
So,
Number of moles = .
Thus, is the limiting reactant.
Molar mass of
Amount of produced = =
Since,
Hence, the amount of cryolite produced is .