Select the correct answer from each drop-down menu. To prepare a 2 M solution of potassium nitrate (KNO3), which quantities must
1 answer:
Molarity determines the molar concentration of the solute dissolved in the solution. Mass and volume should be measured for the estimation of the molarity.
<h3>What is molarity?</h3>Molarity is the mass of the solute present in the litre of solution. It is also called molar concentration as it estimates the concentration of the compounds.
The unit of molarity is mol/L and can be given by the formula:
Therefore, for the formation of a 2M potassium nitrate solution, the volume of the solution and mass of the solute is required.
Learn more about mass and volume here:
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Answer:
Explanation:
For a chemical reaction, equilibrium is a state at which the rate of the forward reaction equals that of the reverse reaction. The equilibrium constant Keq is a parameter characteristic of this state which is expressed as a ratio of the concentration of the products to that of the reactants.
For a hypothetical reaction:
xA + yB ⇄ zC
The equilibrium constant is :
The given reaction involves the decomposition of H2O into H2 and O2
The equilibrium constant is expressed as :
Since Keq = 5.31*10^-10