2 years ago

How do I figure this out?

1 answer:

Vilka [71]2 years ago

6 0

I think silicon and phosphorus are no polar covalent bond

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Vilka [71]

Answer:

A = 349 g.

Explanation:

Hello there!

In this case, since the radioactive decay kinetic model is based on the first-order kinetics whose integrated rate law is:

$A=Ao*exp(-kt)$

We can firstly calculate the rate constant given the half-life as shown below:

$k=\frac{ln(2)}{t_{1/2}} =\frac{ln(2)}{58year}=0.012year^{-1}$

Therefore, we can next plug in the rate constant, elapsed time and initial mass of the radioactive to obtain:

$A=500g*exp(-0.012year^{-1} *30year)\\\\A=349g$

Regards!

5 0

3 years ago

vladimir1956 [14]

Answer:

I prob can bc I'm a bad b*tch

lol

8 0

3 years ago

erastova [34]

The membrane keeps the digestive materials from leaking out into the cytoplasm and destroying the cell.

7 0

3 years ago

Ivanshal [37]

Atomic number or the number of protons in the element.

6 0

3 years ago

Dahasolnce [82]

due to there reactive rate?

6 0

3 years ago