Question

name: q1 chemistry: u1l5 mixture separation teacher: date: uncommon schools 1. step 1: which component would you separate first? why? what method would you use? 2. step 2: what would you do next? which technique applies now? 3. **step 3: now that some components are separated, how would you isolate the dissolved salt? 4. step 4: what technique would you use to separate the black ink from the water? 5. step 5: finally, describe how youd collect the water, if needed, in pure form. 6. now try and organize your steps into a flow chart below. hint! at each step, you should separate something. mixture of sand, salt, water, oil and black ink be uncommon. change history.

Explanation:

Step1: Separate oil first

Oil is immiscible with water and has lower - density. Use decantation. Pour off the oil layer floating on top of the water layer.

Step2: Separate sand

Sand is insoluble in water. Use filtration. Pass the remaining mixture through a filter paper to separate sand from the salt - water and ink solution.

Step3: Isolate dissolved salt

Use evaporation. Heat the salt - water and ink solution. Water will evaporate, leaving behind the salt.

Step4: Separate black ink from water

Use distillation or chromatography. Distillation can separate based on different boiling points. Chromatography can separate based on different affinities of ink components for the stationary and mobile phases.

Step5: Collect pure water

If using distillation in Step 4, the water vapor can be condensed and collected as pure water.

Answer:

1. Oil; because it is immiscible and has lower density; decantation.
2. Separate sand; filtration.
3. Evaporation.
4. Distillation or chromatography.
5. Condense water vapor from distillation.