Answer : The half-life at this temperature is, 3.28 s
Explanation :
To calculate the half-life for second order the expression will be:
When,
= half-life = ?
= initial concentration = 0.45 M
k = rate constant =
Now put all the given values in the above formula, we get:
Therefore, the half-life at this temperature is, 3.28 s
Answer: a. Synthesis
Explanation:
a. Synthesis reaction is a chemical reaction in which two reactants are combining to form one product.
Example:
Thus magnesium in its elemental form is combining with oxygen to form magnesium oxide.
b. Double displacement reaction is one in which exchange of ions take place.
Example:
c. Decomposition is a type of chemical reaction in which one reactant gives two or more than two products.
Example:
Answer:
The pressure of H₂(g) = 741 torr
Explanation:
Given that:
The atmospheric pressure measured in the lab = 765 torr
The vapor pressure of water = 24 torr
By applying Dalton's Law of Partial Pressure :
Making The Pressure inside the tube due to the H₂(g) the subject of the formula :
we have:
= (765 -24) torr
= 741 torr
Therefore; the pressure of H₂(g) = 741 torr