Calculate the percentage by weight of NaCl, if 2.0 g of NaCl is dissolved in 20g ofwater
Correct answer: B. 9.09%
- A. 11.2%
- B. 9.09%
- C. 13.1%
- D. 14.25%
Explanation
The correct option for the percentage by weight of NaCl in the solution is:b. 9.09%Here's how to calculate it:Mass of the solution:Mass of NaCl + Mass of water = 2.0 g + 20.0 g = 22.0 gPercentage by weight of NaCl:(Mass of NaCl / Mass of solution) x 100%(2.0 g / 22.0 g) x 100% = 9.09%Therefore, the percentage by weight of NaCl in the solution is 9.09%.
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