joseroblesrivera123
29.11.2020 •
Chemistry
Radium is a radioactive element that decays into radon gas. Its atomic mass is 226. How many moles in 500 grams of radium?
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Ответ:
500 grams radium equals to 2.21238938053095 moles
Ответ:
753.98in
Step-by-step explanation:
V=π*r^2 * (h/3)
V= 3.14 * 6^2 * (20/3)
V= 3.14 * 36 * 6.67 = 753.976