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The properties of a good primary standard solution include the following except?

Chemistry
WAEC 2019

The properties of a good primary standard solution include the following except?

  • A. High molecular mass
  • B. low molecular mass
  • C. high degree of purity
  • D. readily available
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Correct Answer: Option B
Explanation

Properties of a good standard solution

  • High purity.
  • Stability (low reactivity)
  • Low hygroscopicity (to minimize weight changes due to humidity)
  • High equivalent weight (to minimize weighing errors)
  • Non-toxicity.
  • Ready and cheap availability.
  •  High molecular mass
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Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
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