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Awọn iroyin titun
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Awọn ibeere Imọ-ẹrọ fun S...
2021-07-09
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Aworan sisan ti iṣuu soda formald...
2021-07-09
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Ohun elo ati ilana deve ...
2021-07-09
Diẹ ninu awọn imọran iṣiro #kemikali:
Akoko: 2021-02-28 Deba: 37
Diẹ ninu awọn imọran iṣiro #kemikali:
Bawo ni lati yi % pada si ppm?
Idahun: isodipupo nipasẹ 10000
Fun apẹẹrẹ: 0.002% ×10000=20ppm
Bii o ṣe le yipada ZnO% si Zn%?
Idahun: ZnO% ×0.81=Zn%
Fun apẹẹrẹ :ZnO 95% ×0.8025=Zn76.24%
Bii iwuwo molikula #ZnO jẹ 81, iwuwo molikula #Zn jẹ 65, nitorina 65/81=0.8025
