Define what were the molarities of cd2

Assignment Help Chemistry

Reference no: EM13194026

A 50.0 mL sample containing Cd2 and Mn2 was treated with 53.9 mL of 0.0500 M EDTA. Titration of the excess unreacted EDTA required 14.7 mL of 0.0220 M Ca2 . The Cd2 was displaced from EDTA by the addition of an excess of CN-. Titration of the newly freed EDTA required 24.6 mL of 0.0220 M Ca2 . What were the molarities of Cd2 and Mn2 in the original solution?

Reference no: EM13194026

Questions Cloud

State measuring device indicates that the blood pressure : A pressure-measuring device indicates that the blood pressure of a normal person oscillates between 120mm Hg (at the peak of the heartbeat) and 80mm Hg (between heartbeats).

Define what is the molarity of koh : here A solution of a primary standard KHC8H4O4 was prepared by dissolving 0.4877g potassium hydrogen pthalate in 50 ml H2O. Titration with KOH required 23.84 ml to reach a phenopthalein end point . What is the molarity of KOH

Find out the composition by mass of the pewter : Titration of the lead and zinc in this aliquot required 34.06 mL of the EDTA solution. Finally, cyanide was used to mask the copper and the zinc in a 25.00 mL aliquot. Titration of the lead required 26.68 mL of the EDTA solution. Determine the com..

Explain changing the temperature and pressure : The density of helium is .01784g/l at S.T.P. I a given mass of helium at S.T.P is allowed to expand to 1.500 times its inital volume bu changing the temperature and pressure,

Define what were the molarities of cd2 : Titration of the newly freed EDTA required 24.6 mL of 0.0220 M Ca2 . What were the molarities of Cd2 and Mn2 in the original solution?

Define what is the hydronium ion concentration : What is the hydronium ion concentration of a 0.20 M solution of an acid with a Ka

Define sample of vapor in equilibrium with propylamine : A 275 mL sample of vapor in equilibrium with 1-propylamine at 25.0C is removed and dissolved in 0.500L of H2O.For 1-propylamine, pKb= 3.43 and the vapor pressure = 316 torr.

To whom a corporation or is entitled to part of its profit : An individual who owns a share of a corporation and is entitled to part of its profits is the director officer president stockholder.

User Account

All Pages