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Solid copper appears to gain mass when heated in air, because the copper reacts with oxygen in the air to form copper oxide. However, the actual mass of the copper does not increase; the mass of the solid increases by a value equal to the mass of oxygen removed from the air.
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∙ 12y ago
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∙ 13y agoWhen metals are heated to a certain temperature, the particles of metal fuse together with oxygen particles. These new particles of oxygen are now being weighed together WITH the mass of the metal. When particles are added, so is mass.
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∙ 15y agoIf copper is heated to red heat in air, its surface will oxidise (combine with oxygen) and the total mass of the sample will then be greater than the original mass of pure copper.
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∙ 15y agoWhen copper is heated it forms black copper oxide on the surface. This will make it heavier.
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∙ 11y agowhen they love each otherr verry much thisb happends and science is sexyyy sooo yeahhh
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Does the mass of water increase when you add copper sulfate?
The mass of water does not increase when copper sulfate is added to the water, unless the copper sulfate is hydrated. The mass of the mixture of water and copper sulfate, of course, does increase.
What is copper sulfates relative formula mass?
The anhydrous copper sulfate (CuSO4) has a molar mass of 159,62.
What is the percent by mass of sulfur in CuSO4?
Dehydrated copper sulfate contains approximately 12.8% sulfur by weight.
What is the mass of 0.45 mol of ammonium sulfate?
This mass is 59,463 g.
The molar mass of aluminum sulfate?
Aluminium Sulphate is Al2(SO4)3 and its mass is27x2 + 96x3 = 342g/mole
Will the mass change when copper sulfate ad sodium hydroxide mix?
No, the mass is conserved.
Does the mass of water increase when you add copper sulfate?
The mass of water does not increase when copper sulfate is added to the water, unless the copper sulfate is hydrated. The mass of the mixture of water and copper sulfate, of course, does increase.
If 13.0g of MgSO47H2O is thoroughly heated what mass of anhydrous magnesium sulfate will remain?
8.79 grams of magnesium sulfate will remain.
What is copper sulfates relative formula mass?
The anhydrous copper sulfate (CuSO4) has a molar mass of 159,62.
Suppose 2.3754g of copper-II sulfate pentahydrate is heated to drive off the water of crystallization Calculate what mass of anhydrous salt will remain?
The gram formula unit mass of copper (II) sulfate pentahydrate is 249.68. The gram formula unit mass of water is 18.015. Therefore, the mass of water of crystallization present in 50.0 g of copper (II) sulfate pentahydrate is: 50[5(18.015)/249.68] or 18.0 g, to the justified number of significant digits. (Note that the prefix penta- means five)
If add water to a copper sulfate crystal will it get larger?
Copper(II) sulfate can fom 3 hydrates; the molar mass increase from the anhydrous salt to heptahydrate.
What happens to copper when it is heated?
When copper is heated it oxidizes. The additional oxygen molecules it takes on when oxidizes leads it to have a higher mass.
Which colour of copper sulphate solution change when iron dipped in it?
It may seem like the iron rusts, but it doesn't. The chemical formula for copper sulfate is CuSO4, or, 1 copper atom, 1 sulfur atom, and 4 oxygen atoms to each molecule. When the iron is placed in the solution of copper sulfate, it replaces the copper in the solution, turning copper sulfate into iron sulfate (FeSO4) and pure copper collects on the iron. This can be proved by removing the copper and seeing that the iron has lost a lot of its mass, as in, it lost mass to the copper sulfate. The iron (steel wool) takes on a pinkish color which is metallic copper deposited when the solution forms iron sulfate.
What is the percent by mass of sulfur in CuSO4?
Dehydrated copper sulfate contains approximately 12.8% sulfur by weight.
If a piece of copper is heated in the air what will happen to the mass of the piece of metal?
The copper wire glows red. Once it cools...the copper reacts with the air to produce copper(II) oxide. This is shown by the black tarnish on the copper wire.
If a 2.743 g sample of magnesium sulphate crystals was heated strongly what would be the mass of the cooled dehydrated salt?
The mass of the anhydrous magnesium sulfate is 2,112 g.
Why does the mass of magnesium sulfate decrease when heated?
It does not decrease in mass, only weight, the mass is still all there, but as when it has been heated smoke is given off from the element, and goes into the atmosphere. It may not sound like the mass is all there with the heated element, but if the smoke were conserved during the experiment the weight would be the same as before the experiment.
