200 mL of a solution of mixture of NaOH and Na2CO3 was first titrated with phenolphthalein and N/IO HCI. 17.5 mL of HCI was required for
the end point. After this methyl orange was added and 2.5 mL of same
HCI was again required for next end point. Find out amounts of NaOH
and Na2CO3 in mixture.

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne

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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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