A countercurrent system is to treat (on an hourly basis) 10 tons of gangue (inert material),...

A countercurrent system is to treat (on an hourly basis) 10 tons of gangue (inert material), 1.2 tons of copper
sulfate, and 0.5 tons of water with water as a fresh solvent. The solution produced is 10 percemt copper
sulphate (remainder water). After each stage. 1 ton of inert retains two tons of water plus dissolved copper
sulphate. How many stages are needed for a 98 percent of copper sulphate recovery?

SEPA-LEACHING

Expert Solution

Amanda K answered 5 months ago

A mixture of MgBr2 and inert material is analyzed to determine the Mg content. First the...

A mixture of MgBr2 and inert material is analyzed to determine the Mg content. First the mixture is dissolved in water. Then all of the bromide ion is precipitated as AgBr by the addition of an excess of silver nitrate. MgBr2(aq) + 2AgNO3(aq) 2AgBr(s) + Mg(NO3)2(aq) In one experiment, a 0.8107 g sample of the mixture resulted in 1.1739 g of AgBr. Determine the percent (by mass) of Mg in the mixture.

A sample of mixture of FeSO4.(NH4)2So4.6H2O and inert material is dissolved in water, and the Fe...

A sample of mixture of FeSO4.(NH4)2So4.6H2O and inert material is dissolved in water, and the Fe is oxidized with bromine water. The excess Br2 is boiled out and NH4OH is added to precipitate the Fe(III). This precipitate, after ignition, weighs 0.160 g. Calculate a) the volume of the NH4OH (specific gravity 0.960, containing 10.0% Nh3 by weight) theoretically required in the above preecipitaion? b) The volume of 0.100 N BaCl2 solution required to precipitate the sulfate from the filtrate of...

when would one purposely add an inert material to a feed stream ? illustrate this strategy...

when would one purposely add an inert material to a feed stream ? illustrate this strategy with an example, and explain the advantages (and disadvantages) of doing this.

A 0.500 g sample containing Ag2O and inert material is heated, causing the silver oxide to...

A 0.500 g sample containing Ag2O and inert material is heated, causing the silver oxide to decompose according to the following equation: 2 Ag2O(s) → 4 Ag(s) + O2(g) If 13.8 mL of gas are collected over water at 27°C and 1.00 atm external pressure, what is the percentage of silver oxide in the sample? The partial pressure of water is 26.7 mm Hg at 27°C. a.) 25.1% b.) 51.9% c.)12.5% d.) 50.1%

Asample of a food material weighing 10 kg is initially at 450% moisture content dry basis....

Asample of a food material weighing 10 kg is initially at 450% moisture content dry basis. It is dried to 10% moisture content wet basis. How much water is removed from the sample per kg of dry solids?

Suppose that in an industry, workers are hired on an hourly basis. Labor costs are variable...

Suppose that in an industry, workers are hired on an hourly basis. Labor costs are variable costs, in that the firm needs to hire more workers (for more hours) to increase production, and the firm can choose to hire zero workers if it does not want to produce. Suppose that market wages go up, and hiring workers becomes more expensive per hour, while other costs remain the same. Consider how this will affect the cost curves for a firm in...

A building has a calculated cooling load of 10 tons, of which 2.5 tons is latent...

A building has a calculated cooling load of 10 tons, of which 2.5 tons is latent load. The space is to be maintained at 72 F db and 50 percent relative humidity. Ten percent by volume of the air supplied to the space is outdoor air at 100 F db and 50 percent relative humidity. The air supplied to the space cannot be less that 55 F db. Assume barometric pressure at sea level, and using the Psychrometric analysis software,...

he ability to concentrate urine is tightly linked to the countercurrent system between nephron and blood...

he ability to concentrate urine is tightly linked to the countercurrent system between nephron and blood vessels in the medulla. What predictions can you make about the concentration gradient if the system were concurrent? Please explain why you make these predictions

Pulp containing paraffin wax is to be dewaxed in a continuous countercurrent extraction system using kerosene....

Pulp containing paraffin wax is to be dewaxed in a continuous countercurrent extraction system using kerosene. The pulp containing the wax is kerosene-free when entering the extractor, and contains 20% paraffin wax and 80% pulp. After extraction, it must not contain over 0.2 lb wax / 100 lb wax-free pulp. The kerosene used for the extraction contains 0.05 lb of wax per 100 lb kerosene. Experiments show that the pulp retains 2.0 lb of kerosene per lb of kerosene- and...

The risk that material misstatement will not be prevented or detected on a timely basis by...

The risk that material misstatement will not be prevented or detected on a timely basis by internal controls can be reduced to zero by having effective controls in place. True or false? Explain.

Question