4 Sulfur is soluble in the flammable liquid xylene but not in water. Sodium nitrate is soluble in water but not in xylene.
Describe and explain two ways to separate a mixture of sulfur powder
and sodium nitrate to collect pure samples of each solid. [6 marks]

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

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