To make a saturated solution, 90 g of NaCl is dissolved in 2000 g of water at 293 K. Find its concentration at this temperature by mass.

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0.045

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Solution

The correct option is A 4
Conc. of sodium chloride $= \frac{M a s s o f N a C l \times 100}{M a s s o f s o l u t i o n}$
$= \frac{90 \times 100}{2090} = 4.306$ (% by mass)

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To make a saturated solution, 90 g of NaCl is dissolved in 2000 g of water at 293 K. Find its concentration at this temperature by mass.

The correct option is A 4Conc. of sodium chloride =Mass of NaCl×100Mass of solution=90×1002090=4.306 (% by mass)

The correct option is A 4
Conc. of sodium chloride $= \frac{M a s s o f N a C l \times 100}{M a s s o f s o l u t i o n}$
$= \frac{90 \times 100}{2090} = 4.306$ (% by mass)