EN 
JA
KO
AR
VI
TRNuntii- HUASHIL
HOT NEWS
-
Nam S ... Read more
2021-07-09
-
Influunt chart de sodium formald ...
2021-07-09
-
Application processus É um principio et ...
2021-07-09
Quidam #chemical calculi tips:
Tempus: 2021, 02 28, hits: 38
Quidam #chemical calculi tips:
Quam mutare % in ppm?
Responde: multiplica per 10000
Exempli gratia: 0.002% ×10000=20ppm
Quomodo ZnO% in Zn% mutandum est?
Responde: ZnO% ×0.81=Zn%
For example: ZnO 95% ×0.8025=Zn76.24%
Ut #ZnO pondus hypotheticum 81, #Zn pondus hypotheticum 65, sic 65/81=0.8025
