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1. Place 25cm3 of dilute sulphuric acid in a beaker.
2. Ass small amounts of solid copper oxide powder to the acid. Keep adding powder until some copper oxide that hasn't reacted is left on the bottom.
3. Filter the solution to remove the copper oxide that hasn't reacted.
4. Transfer the filtrate into a evaporating basin.
5. Heat the contents of the evaporating basin gently.
6. When about a third of the water has evaporated, leave the solution to cool.
7. Examine the crystals which have formed.
What else can I help you with?
If the filtrate is a solution how do you obtain a dry sample of the salt dissolved?
Boil the solution and the solvent will get evaporated and you will get the dry salt
Why excess barium chloride is added to the filtrate in the preparation of a dry sample of barium sulphate?
Barium chloride in excess is added to be sure that the reaction is complete.
How do you obtain pure and dry sample of sodium chloride salt?
To obtain a dry sample of salt the process of the evaporation of salty water must take place . Generally salt is produced in the Salt pans that are located close to the coast . The suns energy is used to evaporate ,leaving the residue behind . This residue is a mixture of several salts not just NaCl. To obtain a pure form of salt it is processed by industries and is pure Sodium Chloride.
How will you obtain pure salt from its impure sample?
To obtain pure salt from an impure sample, you can use the process of recrystallization. First, dissolve the impure salt in a suitable solvent, such as water, at an elevated temperature. Upon cooling the solution, pure salt will crystallize out while impurities remain dissolved. Finally, filter the solution to separate the crystals from the impurities, and then dry the crystals to obtain pure salt.
You want to collect a sample of dry salt from a mixture of sand and salt what is the three processes you should use in correct order?
pour the water through a filter, it will filter out the sand, then boil the water, the water will evaporate, leaving just salt
Can salt dry out your skin?
Yes Salt can dry out your skin...or at least Salt Water can like the Ocean
Salinity is measured in?
Two methods to measure salinity are through electrical conductivity and the total dissolving salts (TDS). Measuring the electrical conductivity involves passing a current through a water-salt sample and seeing how much current flow through it. The TDS method requires that of water-salt sample be allowed to dry through evaporation so that the resulting weight of the solid salt residue that is left can be measured.
Can you put dry ice in salt water?
Yes, you can put dry ice in salt water. It will bubble furiously and cool down the salt water.
What does dry land salinity mean?
Salinity is the amount of salt in something. So, "dry land salinity" is the amount of salt in the dry land involved.
Why dry sample is use in determination of crude fat?
A dry sample is used in determination of crude fat to remove water content, which can interfere with the accuracy of the results. By using a dry sample, the fat content can be extracted more effectively using a solvent, producing more accurate results.
How do you separate dry salt from salt water?
Evaporating water dried salt is obtained.
What is salinity measure in?
Two methods to measure salinity are through electrical conductivity and the total dissolving salts (TDS). Measuring the electrical conductivity involves passing a current through a water-salt sample and seeing how much current flow through it. The TDS method requires that of water-salt sample be allowed to dry through evaporation so that the resulting weight of the solid salt residue that is left can be measured.
