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espress0s

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  • Gender
    Female
  • Exams
    May 2019
  • Country
    Canada

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  1. I'm a little confused how to convert g/L to mol/L, I can't seem to condense the formula in one step :/ If anyone knows a formula that doesn't require multiple steps, please leave it below! Also my IA is due in two days so it would be appreciated if I got a reply soon,,,
  2. I’m not sure what is meant by 30% ammonium hydroxide... is that concentration as a percent??? How do I prepare this using ammonium hydroxide?
  3. Does anyone know a pH 10 buffer recipe? I showed my teacher one but we didn’t have10M ammonia so it didn’t work out. This is for an EDTA titration and I’m not sure if ammonia buffer is the only one I can use but I’m desperate for any recipes bc i’m conducting tomorrow!!
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