Answer:
n = 2 mol
Explanation:
Given data:
Number of moles of water vapors = ?
Volume of water vapors = 44.8 L
Temperature = 273 K
Pressure = 1 atm
Solution:
The given problem will be solve by using general gas equation,
PV = nRT
P= Pressure
V = volume
n = number of moles
R = general gas constant = 0.0821 atm.L/ mol.K
T = temperature in kelvin
by putting values,
1 atm × 44.8 L = n×0.0821 atm.L/ mol.K × 273 K
44.8 L. atm = n×22.4 atm.L/ mol
n = 44.8 L. atm /22.4 atm.L/ mol
n = 2 mol
The balanced equation for the above neutralisation reaction is as follows;
2KOH + H₂SO₄ --> K₂SO₄ + 2H₂O
stoichiometry of KOH to H₂SO₄ is 2:1
neutralisation is the reaction between H⁺ ions and OH⁻ ions to form water which is neutral
number of KOH moles - 1.56 mol
2 mol of KOH require 1 mol of H₂SO₄ for neutralisation
therefore 1.56 mol of KOH require - 1/2 x 1.56 mol = 0.78 mol
0.78 mol of H₂SO₄ are required for neutralisation
Answer:
Electric cars are much faster than their combustion counterparts.
Explanation:
This is because electric cars can produce high torque from the get go, whereas Combustion engines reach the torque after gaining speed
Answer:
3.53*
Explanation:
![K_{c} =\frac{[HI]^{2}[Cl_{2}] }{[HCl]^{2}}=\frac{[5.6*10^{-16} ]^{2} [0.0019]}{[0.13]^{2} }=3.53*10^{-32}](https://tex.z-dn.net/?f=K_%7Bc%7D%20%3D%5Cfrac%7B%5BHI%5D%5E%7B2%7D%5BCl_%7B2%7D%5D%20%7D%7B%5BHCl%5D%5E%7B2%7D%7D%3D%5Cfrac%7B%5B5.6%2A10%5E%7B-16%7D%20%5D%5E%7B2%7D%20%5B0.0019%5D%7D%7B%5B0.13%5D%5E%7B2%7D%20%7D%3D3.53%2A10%5E%7B-32%7D)
Kc is the equilibrium constant calculated as the ration of products over reactants with their stoichiometric coefficients as their exponents. So the balanced chemical equation is important. Solids do not form part of the Kc expression, they do not affect the equilibrium constant which is why Iodine is not part of the calculations
