Chemistry, 20.07.2019 12:00 lukeramjitsingh
Which coefficients correctly balance the formula equation nh4no2(s)® n2(g) + h2o(l)?
Answers: 1
Chemistry, 22.06.2019 14:00
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
Which coefficients correctly balance the formula equation nh4no2(s)® n2(g) + h2o(l)?...
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