S
sacred_fairy ^
Guest
Is the mass of the product really greater than the mass of the reactants?. explain?
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another..
1.what evidence did u see that indicated that the liquid obtained from the copper (II) sulfate pentahydrate was water?
2.what was the evidence of a chemical reaction when the anhydrous salt samples were treated with the liquid obtained from the hydrate and with water?
3. when the unknown was heated, could the decrease in mass be partyly due to the loss of some substance other than water? explain.
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Make all the calculations needed to complete the following table. Be sure to carry the proper nimber of significant figures in your work. Show numerical setups in the space provided. Do not show long division and multiplication.
Calculate mass of original sample _______________
Calculate mass lost from sample by heating __________________
Calculate percentage of water in sample ____________
Quantitative Determination of Water in a Hydrate
Mass of crucible and cover - 34g
Mass of crucible, cover and sample - 37g
Mass of crucible, cover and sample after first heating - 37g
Mass of crucible, cover and sample after 2nd heating - 37g
Mass of crucible, cover and sample after 3rd heating - 37g
*please do the following* I really NEED This. *
Dont tell me to find it at the goggle >_<.
PLEASE PLEASE :3
<33
answer ds.
---------
another..
1.what evidence did u see that indicated that the liquid obtained from the copper (II) sulfate pentahydrate was water?
2.what was the evidence of a chemical reaction when the anhydrous salt samples were treated with the liquid obtained from the hydrate and with water?
3. when the unknown was heated, could the decrease in mass be partyly due to the loss of some substance other than water? explain.
----
Make all the calculations needed to complete the following table. Be sure to carry the proper nimber of significant figures in your work. Show numerical setups in the space provided. Do not show long division and multiplication.
Calculate mass of original sample _______________
Calculate mass lost from sample by heating __________________
Calculate percentage of water in sample ____________
Quantitative Determination of Water in a Hydrate
Mass of crucible and cover - 34g
Mass of crucible, cover and sample - 37g
Mass of crucible, cover and sample after first heating - 37g
Mass of crucible, cover and sample after 2nd heating - 37g
Mass of crucible, cover and sample after 3rd heating - 37g
*please do the following* I really NEED This. *
Dont tell me to find it at the goggle >_<.
PLEASE PLEASE :3
<33
answer ds.