2020davidhines

29.06.2021 • 

Chemistry

A 50 ml solution suspected of containing ammonium ions was diluted to 250 mL A 50.0 mL aliquot of the diluted solution was analysed by Back-Titration. A 100 mL aliquot of a std 0.2005 M NaOH (MM = 40 g/mol) solution was added to the solution. The excess NaOH was back-titrated with 25.0 mL of a 0.1204 M std HCI (36/45 g/mol). The concentration of the ammonium ion (MM-18.04) in the initial sample solution (in g/dm) is:​

Ответ:

catie8269

27.10.2021

Chemistry

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If they bury a seed in a different place than putting all the seeds in one place it is better because if another animal finds the seeds then the squirrel will be left with none. If it puts the seeds in all kinds of places and an animal finds a seed then the squires will have some left.
Hope this helps :3

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