When the equation is correctly balanced, the coefficient of aluminum chloride will be ___.
1 answer:
The answer for the following question is answered below.
<em>Therefore when the equation is balanced the co-efficient of aluminium chloride will be 2.</em>
Explanation:
The balanced equation for the following equation is:
+
→
+
To balance an equation:
- Firstly we have to see whether the elements on the reactants and products side are same or not.
- Then balance each element and see whether the equation is balanced or not
<em>When 2 moles of aluminium chloride react with 3 moles of barium hydroxide on the reactants side then on the products side it yields 2 moles of aluminium hydroxide and 3 moles of barium chloride </em>
(i.e.)
2 + 3
→ 2
+ 3
<em><u>Therefore when the equation is balanced the co-efficient of aluminium chloride will be 2.</u></em>
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Answer:
25.2 kJ
Explanation:
The complete question is presented in the attached image to this answer.
Note that, the heat gained by the 2.00 L of water to raise its temperature from the initial value to its final value comes entirely from the combustion of the benzoic acid since there are no heat losses to the containing vessel or to the environment.
So, to obtained the heat released from the combustion of benzoic acid, we just calculate the heat required to raise the temperature of the water.
Q = mCΔT
To calculate the mass of water,
Density = (mass)/(volume)
Mass = Density × volume
Density = 1 g/mL
Volume = 2.00 L = 2000 mL
Mass = 1 × 2000 = 2000 g
C = specific heat capacity of water = 4.2 J/g.°C
ΔT = (final temperature) - (Initial temperature)
From the graph,
Final temperature of water = 25°C
Initial temperature of water = 22°C
ΔT = 25 - 22 = 3°C
Q = (2000×4.2×3) = 25,200 J = 25.2 kJ
Hope this Helps!!!
Answer:
232.9K
Explanation:
V₁ = 5dm³
P₁ = 0.92atm
T₂ = 30°C
V₂ = 5.7L
P₂ = 800mmHg
Unknown:
T₁ = ?
Solution:
To solve this problem, we are going to apply the combined gas law which is fusion of the avogadro's law, boyle's law and charles's law.
Mathematically;
p, v and T are pressure, volume and temperature respetively
1 and 2 depicts the initial and final states.
We need to convert ;
temperature to K and pressure into atm
T₂ = 30°C = 273 + 30 = 303K
P₂ = 800mmHg;
760mmHg = 1 atm
800mmHg = = 1.05atm
Input the variables and solve;
T = 232.9K