Final answer:
about Concentration In order to prepare 100mL of 2% milk, you'd need 2g of milk powder. This is a basic principle in chemistry where we deal with the concentrations of a solution.
Step-by-step explanation:
The subject of your question pertains to the concentration of solutions, which falls under the field of Chemistry. Having a 2% solution means that there are 2 grams of solute in every 100mL of solution. So in order to make 100mL of 2% milk, you'd use 2g of milk powder.
This is analogous to other problems in chemistry where you deal with concentrations, such as figuring out how many grams of a certain element are in a mole of a compound, or figuring out the mass of a reactant you'd need to produce a certain mass of a product in a chemical reaction (as per the law of conservation of mass).
In order to prepare 100mL of 2% milk, you'd need 2g of milk powder. This is a basic principle in chemistry where we deal with the concentrations of a solution.
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