1. The pH of the solution is 1.36
2. The pH of the solution is 10.47
3. the concentration of [H₃O⁺] in the solution is 6.3×10⁻¹⁴ M
<h3>What is pH ? </h3>
This is simply a measure of the acidity / alkalinity of a solution.
The pH measures the hydrogen ion (hydronium ion) concentration while the poH measures the hydroxide ion concentration. It is expressed mathematically as
pH = –Log H₃O⁺
<h3>1. How to determine the pH</h3>
- [H₃O⁺] = 4.32×10⁻² M
- pH = ?
pH = –Log H₃O⁺
pH = –Log 4.32×10⁻²
pH = 1.36
<h3>2. How to determine the pH</h3>
- [H₃O⁺] = 3.4×10⁻¹¹ M
- pH = ?
pH = –Log H₃O⁺
pH = –Log 3.4×10⁻¹¹
pH = 10.47
<h3>3. How to determine the concentration of [H₃O⁺]</h3>
pH = –Log H₃O⁺
13.2 = –Log H₃O⁺
Multiply through by -1
-13.2 = Log H₃O⁺
Take the anti-log of -13.2
H₃O⁺ = anti-log (-13.2)
H₃O⁺ = 6.3×10⁻¹⁴ M
Learn more about pH:
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The temperature will change from 100K to 173.87 K
calculation
by use of law that is V1/T1=V2/T2
V1=3.75 L
T1=100k
V2=6.53 L
T2=?
make T2 the subject of the formula
T2=(V2 xT1)V1
=6.52 x100/3.75=173.87K
The correct number of significant figures and digits is 3
