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Molecular weight of ammonia

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Reference no: EM131057040

Ammonia is a pungent, colourless gas that is very soluble in water. In this practical you will use a 0.4 molL-1 aqueous solution of ammonia. Solutions containing ammonia can be considered hazardous to your health at concentrations greater than or equal to 3% w/v. Is 0.4M aqueous ammonia solution considered hazardous? (N.B. X % w/v corresponds to X grams of ammonia made up to 100 ml with water). The molecular weight of ammonia is 17.

  • Yes, 0.4M ammonia solution corresponds to approximately 6.8% w/v ammonia in water and hence is considered hazardous to one's health
  • Yes, 0.4M ammonia solution corresponds to approximately 12% w/v ammonia in water and hence is considered hazardous to one's health
  • No, 0.4M ammonia solution corresponds to approximately 0.68% w/v ammonia in water and hence is not considered hazardous to one's health
  • No, 0.4M ammonia solution corresponds to approximately 0.000234% w/v ammonia in water and hence is not considered hazardous to one's health

Reference no: EM131057040

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