Phosphorous acid, H 3 PO 3 ( aq ) , is a diprotic oxyacid that is an important compound in industry and agriculture. p K a1 p K
a2 1.30 6.70 Calculate the pH for each of the points in the titration of 50.0 mL of 1.5 M H 3 PO 3 ( aq ) with 1.5 M KOH ( aq ) . A molecule of phosphorous acid. A central phosphorus atom is single bonded to a hydrogen atom and two O H groups. An oxygen atom is also double bonded to the phosphorus atom.
a. before addition of any KOH :
b. after addition of 25.0 mL KOH :
c. after addition of 50.0 mL KOH :
d. after addition of 75.0 mL KOH :
e. after addition of 100.0 mL KOH :
a. before addition of any KOH :
b. after addition of 25.0 mL KOH :
c. after addition of 50.0 mL KOH :
d. after addition of 75.0 mL KOH :
e. after addition of 100.0 mL KOH :
1 answer:
You might be interested in
The number of hours required : 37.2 hours
<h3>Further explanation</h3>Given
⁴²K (potassium -42)
Required
The number of hours
Solution
The atomic nucleus can experience decay into 2 particles or more due to the instability of its atomic nucleus.
Usually, radioactive elements have an unstable atomic nucleus.
Based on Table N(attached), the half-life for ⁴²K is 12.4 hours, which means half of a sample of ⁴²K will decay in 12.4 hours
For three half-life periods :
