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What is the atomic number of an atom that has 6 protons

Reactions in cells take place at about a. 40°c b. 0° c. 100°c d. 60°c

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