What is the mass concentration (in g/L) when 1.379 L of salty water contains 4.32 g of NaCl?

Question

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Answer 1

How many grams of NaCl are there? Answer = 4.32 g

How many liters of solution are there? Answer = 1.379 L

What is the concentration in g / L? Answer = 4.32 g / 1.379 L = 3.13 g / L (3 sig. figs.)