ZAZ Question 14 of 20
Which sample of water has the most thermal energy
A A 1.5 kg sample at 10°C
B. A 0.5 kg sample at 1°C
O C. A 1 kg sample at 10°C
OD. A 1 kg sample at 4°C
help pls

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.