Na2O + HCl→ NaCl +H2O
Does the equation above satisfy the law of mass conservation of matter.
No, since there are two sodium atoms as reactants, but only one sodium atom as a product.
<em><u>Explanation</u></em>
According to the law of mass conservation the number of atoms in the reactant side must be equal to the number of atoms in the product side.
For this reason the equation above does not satisfy the law of mass conservation since the number of sodium atoms are not equal in both side.
The structure will be:
H₃C-CH₂-CH=CH-CH₂-CH₃
This class of compounds is known or referred to as alkenes. Alkenes are unsaturated hydrocarbons that contain a carbon-carbon double bond. The present of this double bond alters the properties of alkenes rom alkanes.
Answer is: pH of aniline is 9.13.<span>
Chemical reaction: C</span>₆H₅NH₂(aq)+
H₂O(l) ⇌ C₆H₅NH₃⁺(aq) + OH⁻(aq).
pKb(C₆H₅NH₂) = 9.40.
Kb(C₆H₅NH₂) = 10∧(-9.4) = 4·10⁻¹⁰.
c₀(C₆H₅NH₂) = 0.45 M.
c(C₆H₅NH₃⁺) = c(OH⁻) = x.
c(C₆H₅NH₂) = 0.45 M - x.
Kb = c(C₆H₅NH₃⁺) · c(OH⁻) / c(C₆H₅NH₂).
4·10⁻¹⁰ = x² / (0.45 M - x).
Solve quadratic equation: x = c(OH⁻) = 0.0000134 M.
pOH = -log(0.0000134 M.) = 4.87.
pH = 14 - 4.87 = 9.13.
it is located at the origin so A
hope this helped ^_^
Answer: (B) The reverse reaction will proceed to establish equilibrium.
Explanation:
Any change in the equilibrium is studied on the basis of Le-Chatelier's principle.
This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.
For the given equation:
Given : when
is added to the system
If the concentration of
that is the product is increased, so according to the Le-Chatlier's principle, the equilibrium will shift in the direction where decrease of concentration of
takes place. Therefore, the equilibrium will shift in the left or backward direction.
Thus the reaction will shift towards reactants to reestablish equilibrium and thus partial pressure of
and
decreases and the partial pressure of
increases.