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Rates, SM-Bank 011 MC

In a science experiment, Albert needs to add 60 millilitres of acid to every 2 litres of water.

If Albert only has 0.5 litres of water left, how many millilitres of acid should he add?

  1. 0.15 mL
  2. 0.6 mL
  3. 15 mL
  4. 30 mL
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\(C\)

Show Worked Solution
\(\text{Given}\ \ 60\ \text{mL}\) \(\rightarrow 2\ \text{litres}\)
\(30\ \text{mL}\) \(\rightarrow 1\ \text{litre}\)
\(\therefore 15\ \text{mL}\) \(\rightarrow 0.5\ \text{litres}\) 

 
\(\therefore 15\ \text{millilitres of acid should be added}\)
 
\(\Rightarrow C\)