Based on the solubility observations, which of the following pairs of cations could be distinguished by the addition of sodium c
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The given question is incomplete. The complete question is given here :
The equilibrium constant for the reaction is M.
This value indicates that
A. is a stronger base than
B. HCN is a stronger acid than HONO
C. The conjugate base of HONO is
D. The conjugate acid of CN- is HCN
Answer: A. is a stronger base than
Explanation:
Equilibrium constant is the ratio of product of the concentration of products to the product of concentration of reactants.
When ; the reaction is product favoured.
When ; the reaction is reactant favored.
; the reaction is in equilibrium.
As, , the reaction will be product favoured and as it is a acid base reaction where
acts as acid by donating
ions and
acts as base by accepting
Thus is a strong acid thus
will be a weak conjugate base and
is a strong base which has weak
conjugate acid.
Thus the high value of K indicates that is a stronger base than
<u>Answer:</u> The volume of the vessel is and total internal energy is 162.0 kJ.
<u>Explanation:</u>
- To calculate the volume of water, we use the equation given by ideal gas, which is:
or,
where,
P = pressure of container = 700 kPa
V = volume of container = ? L
m = Given mass of R-134a = 3.98 kg = 3980 g (Conversion factor: 1kg = 1000 g)
M = Molar mass of R-134a = 102.03 g/mol
R = Gas constant =
T = temperature of container =
Putting values in above equation, we get:
Converting this value into , we use the conversion factor:
So,
- To calculate the internal energy, we use the equation:
or,
where,
U = total internal energy
m = given mass of R-134a = 3.98 kg = 3980 g (Conversion factor: 1kg = 1000g)
M = molar mass of R-134a = 102.03 g/mol
R = Gas constant =
T = temperature =
Putting values in above equation, we get:
Converting this into kilo joules, we use the conversion factor:
1 kJ = 1000 J
So, 161994.6 J = 162.0 kJ
Hence, the volume of the vessel is and total internal energy is 162.0 kJ.