Write an equation for the reaction of solid aluminum metal with hydrochloric acid (hydrogen monochloride) dissolved in water to
1 answer:
Answer:
The coefficient for the hydrochloric acid is 6.
Explanation:
Stoichiometric coefficient are the number written in front of the reactants and products in balanced chemical reaction.
When solid aluminum reacts with hydrochloric acid to give aluminum chloride and hydrogen gas.
The coefficient for the aluminum is 2.
The coefficient for the hydrochloric acid is 6.
The coefficient for the aluminum chloride acid is 2.
The coefficient for the hydrogen gas is 3.
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<u>Answer:</u> The time taken by the reaction is 84.5 seconds
<u>Explanation:</u>
The equation used to calculate half life for first order kinetics:
where,
= half-life of the reaction = 9.0 s
k = rate constant = ?
Putting values in above equation, we get:
Rate law expression for first order kinetics is given by the equation:
......(1)
where,
k = rate constant =
t = time taken for decay process = 50.7 sec
= initial amount of the reactant = ?
[A] = amount left after decay process = 0.0741 M
Putting values in equation 1, we get:
Now, calculating the time taken by using equation 1:
Putting values in equation 1, we get:
Hence, the time taken by the reaction is 84.5 seconds