I am pretty sure the more alkaline a solution is the basic it is. Using that definition you can, you can compare the pH values for each of the solutions and the ones that have the highest pH values will be the most alkaline (basic) and the ones with the lowest pH values will be the least alkaline (acidic). pH=[H₃O⁺] and pH=14-pOH (use pOH=[OH⁻<span>])
</span>pH=14-0.5=13.5
pH=3.5
pH=14-(-log(5.62x10^-5))=9.75
pH=-log(3.16x10^-7)=6.5
pH=0.5
ordered from most alkaline to least:
pOH=0.5, [OH]=5.62x10^-5, <span>[H₃O⁺]=3.16x10^-7, pH=3.5, pH=0.5
Hope this helps. Let me know if you have any further questions in the comments.</span>
Answer:
Imma just say acids have more acidity and bases have lower acidity...
M₀=2.643 g
m₁=2.090 g
m(H₂O)=m₀-m₁
w(H₂O)=m(H₂O)/m₀=(m₀-m₁)/m₀
w(H₂O)=(2.643-2.090)/2.643=0.2092 (20.92%)
20.92%
<h3><u>Ⲁⲛ⳽ⲱⲉⲅ</u><u>:</u></h3>
<h3><u>Ⲋⲟⳑⳙⲧⳕⲟⲛ :</u></h3>
Molarity is used to measure the concentration of a solution , so it is also as molar concentration. It is denoted as M or Mol/L
<u>We </u><u>are </u><u>given </u><u>that </u><u>:</u>
- Weight of = 5.34g
- Volume of solution = 214 ml , or 0.214 L
The molar mass of magnesium chloride ( ) is 95.21 g / mol
We can calculate the molarity of the solution by dividing the number of moles of solute by volume of solvent in liter ,i.e:
ㅤㅤㅤ⸻( 1 )
<em>Where,</em><em> </em>
- M = molarity
- n = number of moles
- V = Volume
We can calculate the number of moles by dividing the actual mass by its molar mass ,i.e:
ㅤㅤㅤ⸻ ( 2 )
<em>W</em><em>here,</em>
- n = number of moles
- m = molar mass
- w = actual mass
<u>Therefore</u><u>,</u>
<u>P</u><u>utting </u><u>the </u><u>values </u><u>in </u><u>equation </u><u>(</u><u> </u><u>1</u><u> </u><u>)</u><u>:</u>
Answer: To determine the mole ratio
Explanation:
A balanced chemical equation is needed ,because it helps to determine the mole ratio of acid and base.
The mole ratio ensures that the number of moles of H+ provided by the acid is equal to number of moles of OH- ion provided by the base, For neutralization to occur, this must be the case.