For the following reaction between Mohr\'s salt (iron as FeSO_4 (NH_4)_2SO_4, 6H

Question

For the following reaction between Mohr's salt (iron as FeSO_4 (NH_4)_2SO_4, 6H_20) and potassium dichromate (dichromate as K_2Cr_2O_7), determine the volume (in milliliters) of a 0.130 M potassium dichromate.(The reaction is shown in its ionic form in the presence of a strong acid.) Cr_2O^2-_7 + 6Fe^2+ + 14H^+ rightarrow 2 Cr^3+ + 6 Fe^3+ + 7 H_2O For the same reaction, what volume (in milliliters) of 0.130 M potassium dichromate is required to fully react with 0.0600 L of a 0.130 M solution of Mohr's salt? Potassium dichromate volume =

Explanation / Answer

* Neutralisation formula,

M1 V1 / n1 = M2 V2 / n2

0.130 * V1 / 6 = 0.130 * 0.0600 / 1

V1 = Volume of mohr's soalt solution needed = 0.360 L = 360 mL

**

Now, calaculate V2,

0.130 * 0.0600 / 6 = 0.130 * V2 / 1

V2 = Volume of dichromate solution needed = 0.0100 L = 10.0 mL

Related Questions

Navigate

• Browse (All)
• Browse F
• Subjects

---

---

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