Find the mass of an object with 30 cm3 and has a density of 2 g/cm3 (input number only) formation of a precipitate

formation of gas (without heat)

color change

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