sahaj has prepared 0.01% (by mass) solution of sodium chloride in water which of the following correctly represents the compositions of the solution? (a) 1.00 gram of NaCl + hundred gram of water (b) 0.11 gram of NaCl + hundred gram of water( c) 0.01 gram of NaCl + 99.99 gram of water (d) 0.10 gram of NaCl + 9.90 gram of water
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8
Answer:
Option (C)
Explanation:
Mass % = mass of solute ÷ (mass of solute + solvent) × 100
= 0.01/(0.01+99.99)×100
= 0.01/100 × 100
= 0.01 gm
so
0.01 gram of Nacl + 99.99 gram of water
option (C)
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3
Answer:
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Explanation:
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