Question

I) how do you know that some substance in coffee beans are soluble ?
II) why is filter paper used ?
III) differentiate between filter and residue ?
IV) what is the scientific name of the mixture labels as coffee in the diagram ?


please this is argent
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Answer 1

Answer:

i) You've most likely noticed that when you make coffee, some of the compounds from the ground coffee end up in the water, giving it the characteristic color, aroma and flavor that we know as coffee. Solubility of some of the constituents of coffee varies with the temperature of the water

ii) Filter paper is a semi-permeable paper barrier placed perpendicular to a liquid or air flow. It is used to separate fine solid particles from liquids or gases.

iii) During the process of filtration, the insoluble solid left on the filter is called residue while the liquid which passed through the filter is called filtrate

iv) Caffeine is the answer

Explanation:

Hope it helps you

Answer 2

Answer:

1.) You've most likely noticed that when you make coffee, some of the compounds from the ground coffee end up in the water, giving it the characteristic color, aroma and flavor that we know as coffee. Solubility of some of the constituents of coffee varies with the temperature of the water.

2.) Filter paper is a semi-permeable paper barrier placed perpendicular to a liquid or air flow. It is used to separate fine solid particles from liquids or gases.