Explain the solid copper carbonate was isolated by vacuum

Assignment Help Chemistry

Reference no: EM13214429

To a 150 mL beaker were added 0.510 g of solid copper powder and 2.5 mL of a 15 M aqueous solution of nitric acid. Brown fumes were evolved, and 25 mL of water was then added to the blue solution formed. To the aqueous solution was added 3.010 g of solid sodium carbonate in small portions. Only after all of the excess hydrogen ion in the aqueous solution was consumed by reaction with added carbonate ion did carbonate ion precipitate copper (II) ion as copper (II) carbonate. The solid copper (II) carbonate was isolated by vacuum filtration and dried; 0.920 g of copper (II) carbonate was collected. The net ionic equations for the reactions which occurred are shown below.

Cu(s) + 4H+(aq) + 2NO3-(aq) ==> Cu2+(aq) + 2NO2(g) + 2H2O(l)

2H+(aq) + CO32-(aq) ==> H2O(l) + CO2(g)

Cu2+(aq) + CO32-(aq) ==> CuCO3(s)

Calculate the percent yield of copper (II) carbonate.

Reference no: EM13214429

Questions Cloud

How much was the firms earnings before taxes ebt : How much was the firm's earnings before taxes EBT and what was Ramco's operating income, or EBIT (a.k.a. "Operating income"), in millions

State the complete neutralization reaction occurs : What are the spectator ions in the solution after the complete neutralization reaction occurs when mixing the strong base NaOH

Explain large proportions in a solution of a weak acid h2s : What ions and/or molecules are present in relatively large proportions in a solution of a weak acid H2S (aq)?

Explain what is the new water level : A graduated cylinder contains 20.5 mL of water. What is the new water level after 27.3 g of silver metal with a density

Explain the solid copper carbonate was isolated by vacuum : The solid copper (II) carbonate was isolated by vacuum filtration and dried; 0.920 g of copper (II) carbonate was collected. The net ionic equations for the reactions which occurred are shown below.

Annual cash flows from the acceptance of dynamo : On the basis of costs, would you recommend Radiant to purchase the specialised equipment and packaging facilities from Donnalley Limited or Danforth Limited

Explain rate of particles is proprotional to the squares : In air and according to Stokes Law, the settling rate of particles is proprotional to the squares of their diameters, if they have the same densities

Explain the partial vapour pressure of ho : Predict the partial vapour pressure of HO above its solution in liquid germanium tetrachloride of molality 0.10 mol kg-I

Explain what is the empirical formula of a hydrocarbon : What is the empirical formula of a hydrocarbon if complete combustion or 6.000 mg of the hydrocarbon produced

User Account

All Pages