Which solution is more concentrated? Solution 1:
500 mL of water
100 g of salt

Solution 2:
500 mL of water
90 g of salt

A. Solution 1
B. Solution 2
C. Both have the same concentration

A (Solution 1)

Explanation:

Since both solutions have an equal volume but Solution 1 has a greater amount of solute (100 g in Sol. 1 > 90 g in Sol. 2), Solution 1 is more concentrated.

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explanation: