Answer:
It is most definitely not a scientific theory. When you eat, say, blueberries for example, do you turn blue? No. It has to do with their genetic makeup, so their parents must have been fun colors.
Explanation:
The ionic equation is as below
2Li + (aq) + CO₃²-<em> </em> → Li₂CO₃ (s)
explanation
step 1: write the molecular equation
2 LiNO₃ (aq) + Na₂CO₃ (aq) → Li₂CO₃ (s) +2NaNO₃
Step 2 : break the soluble electrolyte in ions
2 Li⁺ (aq) +2NO₃⁻(aq) + 2Na⁺(aq) + CO₃²⁻ (aq) → Li₂CO₃ + 2Na⁺(aq) +2NO₃⁻(aq)
cancel the spectator ion ( 2Na⁺ and 2No₃⁻)
The ionic equation is therefore
2Li⁺ (aq) + CO₃²⁻(aq) → Li₂CO₃ (s)
there is not enough information to make a prediction as we dont know what side she taped on magnet C
The reaction between the reactants would be:
CH₃NH₂ + HCl ↔ CH₃NH₃⁺ + Cl⁻
Let the conjugate acid undergo hydrolysis. Then, apply the ICE approach.
CH₃NH₃⁺ + H₂O → H₃O⁺ + CH₃NH₂
I 0.11 0 0
C -x +x +x
E 0.11 - x x x
Ka = [H₃O⁺][CH₃NH₂]/[CH₃NH₃⁺]
Since the given information is Kb, let's find Ka in terms of Kb.
Ka = Kw/Kb, where Kw = 10⁻¹⁴
So,
Ka = 10⁻¹⁴/5×10⁻⁴ = 2×10⁻¹¹ = [H₃O⁺][CH₃NH₂]/[CH₃NH₃⁺]
2×10⁻¹¹ = [x][x]/[0.11-x]
Solving for x,
x = 1.483×10⁻⁶ = [H₃O⁺]
Since pH = -log[H₃O⁺],
pH = -log(1.483×10⁻⁶)
<em>pH = 5.83</em>
Answer:
4.90 M
Explanation:
In case of titration , the following formula can be used -
M₁V₁ = M₂V₂
where ,
M₁ = concentration of acid ,
V₁ = volume of acid ,
M₂ = concentration of base,
V₂ = volume of base .
from , the question ,
M₁ = ? M
V₁ = 125.0 mL
M₂ = 4.56 M
V₂ = 134.1 mL
Using the above formula , the molarity of acid , can be calculated as ,
M₁V₁ = M₂V₂
Substituting the respective values ,
M₁ * 125.0 mL = 4.56 M * 134.1 mL
M₁ = 4.90 M
