Find the number of moles in 50.2g of sulfur

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.

Calculate the concentration of all species in a 0.165 m solution of h2co3.

6) (a) calculate the absorbance of the solution if its concentration is 0.0278 m and its molar extinction coefficient is 35.9 l/(mol cm). the depth of the cell is 5 mm. (b) what is the %t? (7) calculate the absorbance of the solution if the transmitted light intensity is 70% of the initial light beam intensity