0.81 moles
Explanation:
cobalt chloride when dissolved in water dissociate into cobalt and chloride ions as shown;
CoCl₂ (s) → [Co²⁺](aq) + 2[Cl⁻] (aq)
The mole ratio between CoCl₂ and [Co²⁺] is 1 ; 1 while the mole ratio between CoCl₂ and [Cl⁻] is 1 : 2
Therefore; 0.27 moles of CoCl₂ will form;
(1 * 0.27) = 0.27 moles of [Co²⁺] ions
(2 * 0.27) = 0.54 moles of [Cl⁻] ions
Total moles of dissociated ions are;
0.27 + 0.54
= 0.81 moles
Balanced chemical reaction:
4C₅H₉O + 27O₂ → 20CO₂ + 18H₂O.
According to principle of mass conservation, number of atoms must be equal on both side of chemical reaction.
Type of reaction is combustion.
Combustion is reaction with oxygen.
Organic compound reacts with oxygen and produce carbon dioxide and water.
Disgusting, depressing, and misery. Tap water is beyond formidable.
Answer:
r = k.[NO₂]²
Explanation:
Let's consider the following reaction.
NO₂ + CO → NO + CO₂
A generic rate law is:
r = k.[A]ᵃ.[B]ᵇ
where,
r is the reaction rate
k is the rate constant
[A] and [B] are the molar concentrations of the reactants
a and b are the reaction orders with respect to A and B, respectively
The reaction is second order in NO₂ and zero order in CO. The corresponding rate law is:
r = k.[NO₂]².[CO]⁰
r = k.[NO₂]²
