What is the mass in mg

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What is the mass in mg of 2.5 x 10^18 atoms of Americium-241 present in the smoke detectors if A tiny speck of radioactive Americium-241 (241.06 g/mol) is used in smoke detectors.?

Determine the pH of the solution resulting from the combination of 40.0 mL of 0.200 M Perchloric acid  HClO4 to 20.0 mL of 0.150 M Sodium hydroxide,  NaOH?

Reference no: EM13107381

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