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inessss [21]
4 years ago
15

How do you separate oil and vinegar?

Chemistry
1 answer:
Nadusha1986 [10]4 years ago
7 0
I think if u add water it will separate them i think not for sure
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4. DBearded waste of Co-60 must be stored until it is no longer radioactive. Cobalt-60
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464 g radioisotope was present when the sample was put in storage

<h3>Further explanation</h3>

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26.5 years in storage

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Initial sample

Solution

General formulas used in decay:  

\large{\boxed{\bold{N_t=N_0(\dfrac{1}{2})^{t/t\frac{1}{2} }}}

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Input the value :

\tt 14.5=No.\dfrac{1}{2}^{26.5/5.3}\\\\14.5=No.\dfrac{1}{2}^5\\\\No=\boxed{\bold{464~g}}

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