A Calculate the concentration (in mol/dm) of the
following solutions
1.0 mol of sodium hydroxide is dissolved in
distilled water to make 500cm of solution.
b 0.2 mol of sodium chloride is dissolved in
distilled water to make 1000 cm of solution.
0.1 mol of sodium nitrate is dissolved in
distilled water to make 100 cm of solution.
d 0.8 g of solid sodium hydroxide is dissolved in
distilled water to a final volume of 1 dm'.
(4; H = 1,0 = 16, Na = 23)
C

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.

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2

Which of two curves exhibits exponential growth