Vacuum filtration is a process of separating the solid from liquids. A Buchner funnel and side arm flask is used for this process. The filter paper is placed on the Buchner funnel, the size of the filter paper should fit on the funnel and should cover all the holes. To obtain the correct yield of the solid product from the vacuum filtration process, there should be no gaps around the edges of the filter paper as if there are any gaps around the edges of the filter paper, the solid precipitate will pass through the gaps with liquid and thus, results in the low percentage yield of the solid compound.
Hence, to obtain the correct yield percentage of the solid compound there should be no gaps around the edges of the filter paper during the vacuum filtration.
An example of a physical change
is liquid water turning into vapor. Physical change is that it may involve a
change in phase but does not involve a change in molecular structure.
Answer:
nuclear energy and solar geothermal
Explanation:
nuclear energy generates heat to produce steam, which is used by a turbine generator to generate electricity
solar geothermal heat pump system allows homeowners to tap into the energy sent down from the sun that is stored by the earth
Answer:
The only PH range which is not covered by any of the given components of the universal indicator is 7.6-8.0
Hence the PH range 7.6-8 can't be described using universal indicator.