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Why is heating up and weighing of crucible and lid is not a good way of finding the amount of hydrated salts?
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How would a synthesis reaction cause the mass of a product to be higher than the metal in a crucible?
Heating a metal in a crucible can cause the metal to react with the surrounding gases. thus, when weighing the metal after heating, the mass increases because of the addition of the gaseous elements
How do you change the amount of water in a hydrated salt?
By heating this hydrate.
What items is used to distribute heat from a Bunsen burner when heating the bottom of a crucible?
A crucible is placed in a pipestem triangle placed on an iron ring while being heated. This supports the crucible while allowing the bottom of the crucible to be directly exposed to the flame of the Bunsen burner. There is no item that is used to distribute heat from a Bunsen burner when heating the bottom of a crucible. The bottom of the crucible is intended to be exposed to the direct flame of the Bunsen burner.
What are the laburatory apparatus example their uses?
What_are_each_of_the_different_laboratory_apparatuses_and_how_are_they_used
What is the use of crucible dish?
Used for heating a substance with controlled amounts of gas from the atmosphere
Why are crucible and tongs used to transfer The Crucible after heating and before weighing?
the crucible might be hot hence it is handy
During the cooling of the fired crucible water condensed on The Crucible wall before its mass measurement Will the reported percent water in the hydrated salt be reported too high or too low?
The percent of water is determined by the loss is mass after heating the water vapor condensed on the crucible wall before heating.
How would a synthesis reaction cause the mass of a product to be higher than the metal in a crucible?
Heating a metal in a crucible can cause the metal to react with the surrounding gases. thus, when weighing the metal after heating, the mass increases because of the addition of the gaseous elements
What is crucible used for?
A crucible is used for heating, melting or calcination of materials.
What is the purpose of taring the crucible before using the incineration process?
It reduces errors caused by variations in the weight of the crucible itself.Taring is accurately establishing the empty weight of the crucible, which can vary with contaminants, residue, or oxides. By repeatedly heating, cooling, and weighing the crucible, until there is only an acceptable variation between weighings, the actual weight of samples before and after incineration can be more precisely measured.
What is the purpose of taring the crucible before using it in an incineration process?
It reduces errors caused by variations in the weight of the crucible itself.Taring is accurately establishing the empty weight of the crucible, which can vary with contaminants, residue, or oxides. By repeatedly heating, cooling, and weighing the crucible, until there is only an acceptable variation between weighings, the actual weight of samples before and after incineration can be more precisely measured.
What are crucible and cover used for laboratory?
The crucible is used for heating small quantities to very high temperatures.
How do you calculate the formula of hydrated Barium Chloride given that a sample of 10g of BaCl2.nH2O crystals lost 1.475g of of water on heating?
Mass of BaCl2 = crucible + lid + BaCl2.nH2O - empty crucible + lidMass of water contained in hydrated BaCl2: Initial mass - final massNo. of moles of H2O in hydrated salt = No. of moles = mass of H2O/formula mass of H2O Use this answer in ratioNo. of moles of BaCl2 in 3.399 g = No. of moles = mass of BaCl2/formula mass of BaCl2 Use this answer in ratioThe ratio of BaCl2 to H2O is 1 : 2
How do you change the amount of water in a hydrated salt?
By heating this hydrate.
Why is the position of The Crucible lid critical to the dehydration of the salt during the heating process?
it is critical to set the lid just off the lip of the crucible to allow the evolved water molecules to escape on heating.
What items is used to distribute heat from a Bunsen burner when heating the bottom of a crucible?
A crucible is placed in a pipestem triangle placed on an iron ring while being heated. This supports the crucible while allowing the bottom of the crucible to be directly exposed to the flame of the Bunsen burner. There is no item that is used to distribute heat from a Bunsen burner when heating the bottom of a crucible. The bottom of the crucible is intended to be exposed to the direct flame of the Bunsen burner.
What are the laburatory apparatus example their uses?
What_are_each_of_the_different_laboratory_apparatuses_and_how_are_they_used
