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    • 3 years ago

    How many moles of sodium chloride (NaCl) solute are in 205 grams of a 92.5 percent by mass solution? 1.92 mol NaCl 2.63 mol NaCl 3.24 mol NaCl 7.71 mol NaCl

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    1. yernpaul
      • 3 years ago
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      Find the mass of NaCl in 92.5% mass solution as: 205*0.925 = ___g then divide the above mass you found with the molar mass of NaCl which is (22.99g/mol + 35.45g/mol) The answer is: 3.24 mol NaCl

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