Trộn 50mldd cacl₂ 1m + 150mld² k₂co₃ 1m
a) tính kl
b)tính nđ mol/l củad²sau pt...
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Chemistry, 23.09.2021 06:20 jforeman42
Trộn 50mldd cacl₂ 1m + 150mld² k₂co₃ 1m
a) tính kl
b)tính nđ mol/l củad²sau pt
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Answers: 3
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Chemistry, 22.06.2019 02:50, Jerrikasmith28
The conventional equilibrium constant expression (kc) for the system below is: 2icl(s) ⇄ i2(s) + cl2(g) [cl2] ([i2] + [cl2])/2[icl] [i2][cl2]/[icl]2 none of the listed answers are correct [i2][cl2]/2[icl]
Answers: 2
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Chemistry, 22.06.2019 14:00, hammackkatelyn60
The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
Answers: 3
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