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What happen when the filtrate is heated in the evaporated dish?
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Where did the substance that appeared at the bottom of the evaporating dish after it was heated come from?
It is likely the substance was a salt such as sodium chloride or copper sulphate that was in solution. When the water evaporated it left the solid salts behind.
All the water evaporated from the solution in the dish What was left in the dish?
Any solutes would remain in the dish, normally the solutes are crystallized as water has been removed from them.
Why is nutrient jelly heated before being poured into petri dish?
to kill the micro - organisms
What would happen if a single cell pathogen entered a culture dish?
The pathogen would multiply in the dish.
When a metal powder is heated in open dish it turns black which metal is that?
The metal might be copper. When copper is heated, it reacts with oxygen in air forming copper oxide which is black in colour.
Where did the substance that appeared at the bottom of the evaporating dish after it was heated come from?
It is likely the substance was a salt such as sodium chloride or copper sulphate that was in solution. When the water evaporated it left the solid salts behind.
How do you separate charcoal powder from mixture of copper oxide?
i did this in a lab using methods of solution, filtration and evaporation : add dilute sulphuric acid to the solid/solid mixture ..heat on a Bunsen burner till bubbles appear then filter the solution, collect the filtrate in an evaporating dish and heat on a Bunsen burner until most the water evaporates or half the filtrate has evaporated .....remove the dish from the burner and leave it on a flat undisturbed surface for 48hrs to allow crystallization.
Can an evaporating dish be heated on a hot plate?
The evaporating dish would not be harmed if it was heated on a hot plate, but it should be heated on a bunsen burner.
What will happen when the evaporating dish has been covered with an inverted funnel upon heating?
Anything evaporated would be funnelled upwards where the vapour could be collected if a tube was to be fastened to the funnel .
What happen in the evaporating dish as water in thr beaker is being heated?
After the total evaporation of water a small solid residue can remain in the beaker.
All the water evaporated from the solution in the dish What was left in the dish?
Any solutes would remain in the dish, normally the solutes are crystallized as water has been removed from them.
Can whipping cream replace evaporated milk?
You could use it, but the fat content, flavor and the texture of the dish would change.
What is the black substance on the bottom of the evaporating dish after it has been heated on a Bunsen burner?
What_is_the_black_substance_on_the_bottom_of_the_evaporating_dish_after_it_has_been_heated_on_a_bunsen_burner
Why is nutrient jelly heated before being poured into petri dish?
to kill the micro - organisms
What is a chafer dish used for?
A chafing dish is a type of portable grate that is raised up on a tripod and heated with charcoal. It is used to heat foods that require gentle cooking.
What would happen if a single cell pathogen entered a culture dish?
The pathogen would multiply in the dish.
When a metal powder is heated in open dish it turns black which metal is that?
The metal might be copper. When copper is heated, it reacts with oxygen in air forming copper oxide which is black in colour.
