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ID number:703927
 
Author:
Evaluation:
Published: 12.01.2024.
Language: Latvian
Level: College/University
Literature: n/a
References: Not used
Time period viewed: 2021 - 2025 years
Extract

1. Amonjaka šķīduma atšķaidīšana.
Rp.: Sol. Ammonii caustici 0,5% - 250,0
D.S. Ārīgi.

Ņem amonjaku no rūpnieciski gatavotas pudelītes, kur koncentrācija ir 10%.
Rēķina pēc formulas: vajadzīgā koncentrācija∗vajadzīgais tilpums
esošā koncentrācija
1) 0,5∗250
10
= 12,5 (ml amonjaka šķ.)
2) 250-12,5 = 237,5 (ml ūdens)
Izsniedzamā traukā ielej ūdeni 237,5 ml. Pievieno 12,5 ml ožamo spirtu un aizver
trauku.
Kontroles talons:
1. Aq.dest.- 237,5 ml
2. Ammonii caustici 10%- 12,5 ml…

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