The curie is a unit used to measure the radioactivity of a substance. It is defined as one Ci = 3.7Ă—10^10 decays per second. Given that 1 Ci = 1000 mCi, how many decays per second would you expect a radioactive sample that contains 500 mCi to emit?
Added by Steven B.
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Given that 1 Ci = 1000 mCi, we can convert 500 mCi to Ci by dividing 500 by 1000. 500 mCi / 1000 = 0.5 Ci Show more…
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The curie (symbol Ci) is a unit used to measure the radioactivity of a substance. It is defined as 1 Ci= 3.7Ă—1010 decays per second. Given that 1 Ci = 1,000 mCi, how many decays per second would you expect a radioactive sample that contains 500. mCi to emit?
Dominique Jan T.
The curie (Ci) is a commonly used unit for measuring nuclear radioactivity: 1 curie of radiation is equal to $3.7 \times 10^{10}$ decay events per second (the number of decay events from 1 g radium in 1 s). a. What mass of $\mathrm{Na}_{2}^{38} \mathrm{SO}_{4}$ has an activity of 10.0 $\mathrm{mCi}^{2}$ Sulfur- 38 has an atomic mass of 38.0 $\mathrm{u}$ and a half-life of 2.87 $\mathrm{h} .$ b. How long does it take for 99.99$\%$ of a sample of sulfur- 38 to decay?
The curie (Ci) is a commonly used unit for measuring nuclear radioactivity: 1 curie of radiation is equal to $3.7 \times 10^{10}$ decay events per second (the number of decay events from 1 g radium in $1 \mathrm{s}$ ). a. What mass of $\mathrm{Na}_{2}^{38} \mathrm{SO}_{4}$ has an activity of $10.0 \mathrm{mCi} ?$ Sulfur-38 has an atomic mass of 38.0 u and a half-life of $2.87 \mathrm{h}$ b. How long does it take for $99.99 \%$ of a sample of sulfur-38 to decay?
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