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A 6.797 g sample of AlCl36H2O is heated until all the water of hydration is removed What will be the mass of the remaining AlCl3?
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∙ 14y ago
3.757 g
Wiki User
∙ 14y ago
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Why must epsom salts be heated to a constant weight?
To remove the water of hydration. the loss of weight will be the weight of water present in the original salts.
What happens to heated materials when heat is removed from it?
No it doesn't, a turkey has two legs
What do you observe when copper sulphate crystals are heated?
With sufficient heating, the blue colored hydrated copper sulfate crystals common at standard temperature and pressure will lose their water of hydration and lose their blue color. With further heating, the anhydrous crystals will melt.
Why does canned food does not decay unless the tin is damaged or opened?
Simply because the can is heated while it's being sealed. This removes all the remaining air inside - keeping the produce fresh for long periods of time.
What are hydrates and what is hydration?
Some salts have a property called "hygroscopy". This means that they absorb water from the air in a preset ratio (like, 5 molecules of water for every 2 units of the salt for example). They give this water off when heated. Therefore, there are actually two forms of the salt, they "hydrate" or "hydrous" form, which has the water, and the "anhydrate" or "anhydrous form", which does not. These two forms can have surprisingly different properties. Hydration is the process of going from an anhydrate to a hydrate (the source of the water doesn't matter, so don't say it's "absorbing water from the air").
Why must epsom salts be heated to a constant weight?
To remove the water of hydration. the loss of weight will be the weight of water present in the original salts.
How does one remove vinyl signs from a window?
Vinyl signs are more easily removed from windows when they are heated. Take a hair dryer to them for a short period of time, making sure not to heat them too much. Once they are heated, the adhesive will be looser and easier to remove. Take a razor or something thin and sharp to the edges of the sticker and start to slowly work it underneath the vinyl. Once the vinyl sticker is removed, clean the remaining residue from the window.
What happens to heated materials when heat is removed from it?
No it doesn't, a turkey has two legs
When the dihydrate of calcium chloride is heated gently it loses one molecule of water of hydration. Write the formulas for the initial and final compounds in this change.?
CaCl2*2H2O ==heat==> CaCl2*H2O
What happens if soil is heated why?
the soil gets hot due to that the soil absorbs heat
What substance is remaining when magnesium carbonate powder is heated Also why does the mass change Thanks?
Magnesium oxide. Carbon dioxide is released as agas.
Why is the NaOH extract heated before acidification?
To remove any remaining traces of another existing compound that might inhibit the crystallization of the phenol.
Predict the change in viscosity as heat is added to or removed from a sample of oil?
think of it as this viscosity is thick when it is heated what will happen
Balance Copper 2 sulfate pentahydrate is heated to drive off the water hydration?
penta = 5 copper(II) sulphate pentahydrate = CuSO4*5 H2O CuSO4*5 H2O + heat --> CuSO4 + 5 H2O
How is cobalt obtained?
Cobalt is obtained by heating its ores to produce cobalt oxide. The cobalt ores are: cobaltite, smaltite, chloranthite, and linnaeite. Once those ores are heated, the remaining compound is then heated with aluminum to release the pure metal.
What do you observe when copper sulphate crystals are heated?
With sufficient heating, the blue colored hydrated copper sulfate crystals common at standard temperature and pressure will lose their water of hydration and lose their blue color. With further heating, the anhydrous crystals will melt.
When hydrated copper sulfate is heated it loses its water of hydration and becomes what?
It becomes a non-crystalline, powdery anhydrous salt.The hydrated (pentahydrate) form is chalcanthite, a bright blue crystal. The rare anhydrous ore form is called chalcocyanite, a gray or pale-green powdery rock.(If heated to 650 °C, copper sulfate becomes copper oxide and sulfur trioxide.)
