2- In the following reaction identify the acid and its conjugate base and the ba

Question

2- In the following reaction identify the acid and its conjugate base and the base and its conjugate acid: Ca(OH), +2 HNo, Ca(NOs), + H,O 3- Determine the hydrogen and hydroxide concentration, when we dissolve 0.85 moles of Acetic acid in 250 mL of solution Ka-H.].[A]/[HA] . 1.76 . 10s /mol/l/ b- if the measure pH of another solution of the previous buffer is 5.7 determine the value of the A 1/IHA) Determine the relation (NH. 1/INH,OH] in orfer to obtain apHof 7.8 for the buffer of pKa 9.25 Previously calculate the pOH

Explanation / Answer

Identify the acid and its conjugate base and base and its conjugate acid:

Ca(OH)2 + 2HNO3 -------> Ca(NO3)2 + H2O

The base in the above reaction is Ca(OH)2. It is a base because, it has a hydroxide group in it.

So since its a base, the conjugate acid can be obtained by the following reaction:

Ca(OH)2 + H+ -------> Ca2+  + H2O

So Ca(OH)2 is the base and theconjugate acid is H2O

The acid in the above reaction is HNO3.And the reaction that involves this acid would be:

HNO3 -------> H+ +NO3-

Since HNO3 is the acid, the conjugate base would be NO3-and in the reaction it is in form of Ca(NO3)2

So HNO3 is the acid and theconjugate base is Ca(NO3)2

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.