V=0,1 l=100 ml
m=p*V=0,8787*100=87,87g
Consideting the definition of electrolyte, the concentration of Ba²⁺ is 0.750 M and the concentration of OH⁻ is 1.5 M.
<h3>Definition of electrolyte</h3>
An electrolyte is a substance that dissolves in water and gives rise to the formation of ions. Electrolytes can be weak or strong, depending on whether they are partially or totally ionized or dissociated in aqueous media.
A strong electrolyte is any substance that, when dissolved in water, exclusively causes the formation of ions with a practically irreversible dissolution reaction.
A weak electrolyte is a substance that, when dissolved in water, produces partial ions, with reversible reactions.
<h3>This case</h3>
The equation for dissociation is:
Ba(OH)₂ → Ba²⁺ + 2 OH⁻
You can observe that the mole ratio of Ba(OH)₂: Ba²⁺ is 1: 1 and the mole ratio of Ba(OH)₂: OH⁻ is 1: 2.
Since Ba(OH)₂ is a strong electrolyte, it dissociates completely. Then, the concentration of Ba²⁺ is 0.750 M and the concentration of OH⁻ is 2×0.750 M= 1.5 M
In summary, the concentration of Ba²⁺ is 0.750 M and the concentration of OH⁻ is 1.5 M.
Learn more about electrolyte:
brainly.com/question/11179867
brainly.com/question/14566383
#SPJ1
1. This can be due to the dissolving of the solid in liquid and form a solution.
Dissolving is a physical property because dissolving doesn't form new substances and the chemical composition of the solid is not changed.
The color building up over the time can be due to the rate of dissolving of the solid and amount of particles have been dissolved.
Example:
- Dissolving of CuSO₄ solid in water.
- This develops a blue color.
2. This can be due to the chemical reaction between the solid and liquid.
Chemical reaction is a chemical property because from reacting substances new substances can be formed which the chemical formula is different from initial substances.
The color building up over the time can be due to the rate of the reaction and the amount of reactants.
Example:
- The reaction between calcium metal with water.
- The color of Ca(OH)₂ is white color.
- Reaction is
Ca(s) + 2H₂O(l) → Ca(OH)₂(aq) + H₂(g)
Probably the one with Hydrogen in it... CuO+H2O