please show work, thanks!
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the decay is exponential. since decay rate is given as 4.7% PER DAY,
the appropriate formula is fraction remaing, f = 0.953^t
for half-life, 0.5 = 0.953^t ,
t = ln 0.5 / ln 0.953 = 14.398 days <------
the appropriate formula is fraction remaing, f = 0.953^t
for half-life, 0.5 = 0.953^t ,
t = ln 0.5 / ln 0.953 = 14.398 days <------
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You're trying to see how many days it would take for the substance to be 50% decayed. so:
4.7(x) = 50
x = 50/4.7
x= 10.64 days
4.7(x) = 50
x = 50/4.7
x= 10.64 days
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In 50/4.7 days one-half will be gone -- 10.64 days