Answer:
= 5.193 g
Explanation:
Half life is the time taken by a radioactive element to decay by half its original amount. Therefore, since half life of carbon-14 is 5700 years, then it would take 5700 years for a sample of carbon-14 to decay by half of its original amount.
Using the formula;
New mass = Original mass × (1/2)^n, where n is the number of half lives.
n = Period taken/Half life = 6350 years/5700 years =1.114
Therefore;
New mass = 11.24 × (1/2)^1.114
= 5.193 g
Hence, a mass of 5.193 g of Carbon-14 would remain after 6350 years.
In one mol of any molecular compound there are Avogadro number of molecules. Avogadro number is 6.022 x 10^23 molecules.
So in 1 mol of any mol of a molecular compound the number of molecules is 6.022x10^23 molecules.
In 4 mol of compound it would be 4 x 6.022 x 10^23
The answer comes out to be 24.088 x 10^23
Hello there.
<span>Why are carbon and nitrogen essential for survival to all living organisms?
</span>
<span>They are needed to release the energy stored in food.
</span>Therefore, The correct answer would be Option B.
Answer:
82500000000000000000000000
Explanation:
This is the only answer I can come up with.
The question is incomplete, here is the complete question:
A VHF television station assigned to channel transmits its signal using radio waves with a frequency of 66.0 MHz. Calculate the wavelength of the radio waves. Round your answer to 3 significant digits.
Answer: The wavelength of the radio waves is 4.54 m
<u>Explanation:</u>
To calculate the wavelength of light, we use the equation:
where,
= wavelength of the light
c = speed of light = 
= frequency of light = 
Putting the values in above equation, we get:
Hence, the wavelength of the radio waves is 4.54 m
