Answer:
Half-life time is 6s
Explanation:
A first order reaction follows the formula:
ln[A] = ln[A]₀ - kt
Thus, the graph of ln[A] vs t will have as slope -k.
Graphing the given values you will obtain the linear formula:
y = -0.1154x + 0.1994
R² = 0.9997
Thus, slope is -0.1154s⁻¹ and k is:
-k = -0.1154s⁻¹; <em>k = 0.1154</em>s⁻¹
Now, as half-life in a first order reaction is:
<em>Half-life time is 6s</em>
An ionic compound forms when a metal bonds with a non-metallic element. Metals usually form the cation and non-metal anions. Chromium has an oxidation number of +3 in the compound and charge on hydroxide ion is -1.
Cation here is
Anion is the hydroxide ion
So the formula of the compound will be: . The compound has one chromium atom and two hydroxide ions.
Therefore, there will be one Chromium atom per each chromium hydroxide compound.