Answer:
<h2>The no. of moles present in one liter solution is 0.843</h2>Explanation:
Mass of ammonium chloride = 11.5 gm
Molar mass of ammonium chloride = 53.491 gm
No. of moles
N = 0.215 moles
M = 0.843 M
Thus the no. of moles present in one liter solution is 0.843
The time required to reduce the concentration from 0.00757 M to 0.00180 M is equal to 1.52 × 10⁻⁴ s. The half-life period of the reaction is 9.98× 10⁻⁵s.
<h3>What is the rate of reaction?</h3>The rate of reaction is described as the speed at which reactants are converted into products. A catalyst increases the rate of the reaction without going under any change in the chemical reaction.
Given the initial concentration of the reactant, C₀= 0.00757 M
The concentration of reactant after time t is C₁= 0.00180 M
The rate constant of the reaction, k = 37.9 M⁻¹s⁻¹
For the first-order reaction:
0.00180 = 0.00757 - (37.9) t
t = 1.52 × 10⁻⁴ s
The half-life period of the reaction:
Half-life of the reaction = 9.98 × 10⁻⁵s
Learn more about the rate of reaction, here:
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