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## A sample of seawater contains 78.0 grams of NaCl in 2,025 mL of solution. If the molar mass of NaCl is 58.443 g/mol, what is the molarity of

Question

A sample of seawater contains 78.0 grams of NaCl in 2,025 mL of solution. If the molar mass of NaCl is 58.443 g/mol, what is the molarity of this sample?

0.659 M NaCl

0.823 M NaCl

1.84 M NaCl

2.08 M NaCl

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Chemistry
3 years
2021-08-11T04:47:48+00:00
2021-08-11T04:47:48+00:00 2 Answers
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## Answers ( )

Answer:0.659 M NaCl

Explanation:Equation: Molarity = moles of solute / liters of solution

1. To find moles of solute:

78.0 g NaCl x 1 mol NaCl / 58.44 g NaCl

= 1.334 mol NaCl

2. Calculate molarity

Transfer 2,025 mL to L

1.334 / 2.025 = 0.659 M NaCl (rounded)

Answer:that would be 0.659 M NaCl