True/False: Positive results indicate the presence of viral antigens, but clinical correlation with patient history and other di
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The molality is 0.54 M when 1.34 moles of NaCl is present in 2.47 kg of solvent.
<u>Explanation:</u>
Molality is the measure of how much of amount of solute is dissolved in the solvent. So it is calculated as the ratio of moles of solute to the grams of solvent.
As in this case, the solute is NaCl and solvent is unknown. So the moles of solute is given as 1.34 moles and the mass of solvent is given as 2.47 kg.
Hence,
Thus, the molality is 0.54 M when 1.34 moles of NaCl is present in 2.47 kg of solvent.
Answer: Equilibrium constant for this reaction is .
Explanation:
Chemical reaction equation for the formation of nickel cyanide complex is as follows.
We know that,
K =
We are given that,
and,
Hence, we will calculate the value of K as follows.
K =
K =
=
Thus, we can conclude that equilibrium constant for this reaction is .