WAEC - Chemistry (2019 - No. 16)
The properties of a good primary standard solution include the following except?
High molecular mass
low molecular mass
high degree of purity
readily available
解释
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