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How can you get copper sulphate from an impure sample?
1. Dissolve the copper carbonate/sulfate salts in water and filter it: the Copper Carbonate is insoluble so it will remain as the residue on the filter paper, and the copper sulfate is soluble so it will pass through the paper as the filtrate. 2. Heat the filtrate in an evaporating basin till the point of crystallization (crystals will form on a rod dipped into the mixture, at the point of crystallization). 3. Leave the filtrate to cool and crystals of pure Copper sulfate will form. Collect the crystals with a spatula and leave them on a sheet of filter paper to dry.
What property depends upon the amount of carbonate in a mineral sample?
The property that depends upon the amount of carbonate in a mineral sample is its effervescence in the presence of dilute hydrochloric acid. When carbonate minerals react with acid, they release carbon dioxide gas, causing fizzing or bubbling. The intensity of this reaction can vary based on the concentration of carbonate present, allowing for the assessment of carbonate content in the sample. Additionally, the solubility of the mineral in acidic solutions is also influenced by the carbonate amount.
How to prepare dry black copper II oxide from copper carbonate hydroxide?
You place the copper carbonate hydroxide sample in a stainless steel tray and then the tray in an electrically heated furnace, able to reach temperatures above 500 degrees centigrade (measuring thermocable). Then the furnace door is closed and the furnace is switched on. When a temperature of 500 oC in the furnace has been reached, the calcination needs to be carried out over a duration of four hours. The product is pure copper oxide (more accurately: cupric oxide)
If a mineral sample bubbles when acid is dropped on it which of the following properties does it have?
It is probable a carbonate.
Why is sodium carbonate extract prepared in semi micro analysis?
(i) The preparation of sodium carbonate extract affords a convenient method for bringing the anions of the mixture into solution which were otherwise insoluble with caution of salt. (ii) It removes the basic radical (usually coloured) which interferes in the usual tests of some of the acidic radicals. (iii) The residue can be used for the tests of basic radicals of I to VI groups. Such a solution does not involve the problem of removing interfering radicals like oxalate, fluoride, borate and phosphate.
Why does one of the reactant copper carbonate is added in excess when preparing a sample of copper sulphate crystals?
Excess copper carbonate is added to ensure that all the copper sulphate is fully converted. This helps to make sure that all the starting material is used up and that the reaction goes to completion, resulting in a higher yield of pure copper sulphate crystals.
A scientist suspect that a mineral sample is a carbonate. which useful for identifying the sample as a carbonate?
To identify the mineral sample as a carbonate, the scientist can perform an acid test. If the sample fizzes or produces bubbles when acid is added, it indicates the presence of carbonate minerals. Additionally, spectroscopic analysis can be used to detect the specific chemical composition of the mineral, confirming its classification as a carbonate.
How can you get copper sulphate from an impure sample?
1. Dissolve the copper carbonate/sulfate salts in water and filter it: the Copper Carbonate is insoluble so it will remain as the residue on the filter paper, and the copper sulfate is soluble so it will pass through the paper as the filtrate. 2. Heat the filtrate in an evaporating basin till the point of crystallization (crystals will form on a rod dipped into the mixture, at the point of crystallization). 3. Leave the filtrate to cool and crystals of pure Copper sulfate will form. Collect the crystals with a spatula and leave them on a sheet of filter paper to dry.
Sample of a substance containing copper?
copper oxide...
Sample questioner of thesis?
how to prepared sample quastioner about computer security.
How to prepare dry black copper II oxide from copper carbonate hydroxide?
You place the copper carbonate hydroxide sample in a stainless steel tray and then the tray in an electrically heated furnace, able to reach temperatures above 500 degrees centigrade (measuring thermocable). Then the furnace door is closed and the furnace is switched on. When a temperature of 500 oC in the furnace has been reached, the calcination needs to be carried out over a duration of four hours. The product is pure copper oxide (more accurately: cupric oxide)
A 10.00 cm3 sample of copper has a mass of 89.6 what is the density of copper?
1
What term is used in forensics to describe a sample of unknown origin?
The term used in forensics to describe a sample of unknown origin is "questioned sample."
How do you prepare a pure sample of dry carbonate using solution of ammonium carbonate?
To prepare a pure sample of dry carbonate using a solution of ammonium carbonate, you would need to first evaporate the solution to dryness to obtain solid ammonium carbonate. Then, heat the solid in a crucible to decompose it into ammonia, carbon dioxide, and water. Finally, collect the carbon dioxide gas and purify it to obtain the pure dry carbonate.
Is a sample of pure copper all atoms have?
In a sample of pure copper, all atoms have the same number of protons in their nucleus, which defines the element as copper. However, individual copper atoms may have varying numbers of neutrons, resulting in different isotopes of copper.
How do you calculate the value of calcium carbonate in limestone?
You can calculate the value of calcium carbonate in limestone by determining the percentage of calcium carbonate present in the sample and then multiplying that by the market price per ton of calcium carbonate. The formula is: Value = (Percentage of calcium carbonate / 100) x Market price per ton.
If a sample of copper contains 1.76E 4 atoms of copper-63 and 7.88E 3 atoms of copper-65 what is the percentage of copper-63 atoms in the sample?
To find the percentage of copper-63 atoms in the sample, first add the number of copper-63 and copper-65 atoms together (1.76E4 + 7.88E3). Then, divide the number of copper-63 atoms by the total number of atoms and multiply by 100 to get the percentage. In this case, the percentage of copper-63 atoms in the sample is approximately 69.0%.
