First calculate the Molarity <span>of the final solution :
C</span>₁ = 6.0 M
V₁ = 25 mL
C₂ = ?
V₂ = 1.75 * 1000 = 1750 mL
C₁ * V₁ = C₂ * V₂
6.0 * 25 = C₂ * 1750
150 = C₂ * 1750
C₂ = 150 / 1750
C₂ = 0.08571 M
Therefore:
pH = - log [C₂]
pH = - log [ <span>0.08571 ]
</span>
pH = 1.0669
hope this helps!
Answer:
- The kinetic energy and the orientation of the molecules.
Explanation:
As per the <em>collision theory</em>, in order for the reactants yield the products, the molecules or particles must collide with a kinetic energy greater than or equal to the activation energy, and they must collide in the right orientation for the old bonds can be broken and the new ones formed.
The particles of reactants that collide either with less kinetic energy than the needed or in a different orientation will not drive to formation of new products but will "bounce" without producing any chemical change.
This theory is in agreement with the observations that increasing the concentration of reactants increases the rate of reaction, because more collisions will be occur, such as increasing the temperature also increases the rate of reaction, because the collisions will be more energetic.
Answer:
A) 1.68 L
Explanation:
- Charles’ Law states that: at constant pressure, the volume is directly proportional to the temperature of the gas.
- It can be expressed as: V₁T₂ = V₂T₁,
V₁ = 1.2 L, T₁ = 175.0 K, V₂ = ??? L, T₂ = 245.0 K.
∴ V₂ = V₁T₂/T₁ = (1.2 L)(245.0 K)/(175.0 K) = 1.68 L.
Answer:
P₄O₆
Explanation:
The molecular formula is a whole number multiple of the empirical formula. that is, if the mole wt is 219.9 gms/mole and the empirical formula weight is 110 gms/mole*, then the whole number multiple is 219.9/110 = 2 => Molecular formula => (P₂O₄)₂ => P₄O₆.
Answer:
enthalpy
Explanation:
If it is used with a triangle in front, (delta H), that means the change in enthalpy. Delta H= (m)(s)(Delta T). m=mass of products, s=heat of the products, Delta T = change in temperature.
Hope that helps
