Answer:
Explanation:
Hello.
In this case, taking into account that HCl has one molecule of hydrogen per mole of compound which weights 36.45 g/mol, we compute the number of molecules of hydrogen in hydrochloric acid by considering the given mass and the Avogadro's number:
Now, from the 180 g of water, we see two hydrogen molecules per molecule of water, thus, by also using the Avogadro's number we compute the molecules of hydrogen in water:
Thus, the total number of molecules turns out:
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I think the answer is ( A and C ) why I picked a and c it’s because a and c look the same answer. I hope it helped you
D. F
Molecules are a group of bonded atoms but Fluorine stands on its own
202.50 ml is the maximum volume of 0.240 M HCl that can be added to the buffer before its buffering capacity is lost.
Explanation:
Data given:
volume of buffer = 135 ml or 0.135 litres
molarity of the buffer = 0.360 M
volume of the acid = ?
molarity of the acid = 0.24 M
the number of moles of conjugate base is
M X V = number of moles
0.360 X 0.135
0.0486 moles of conjugate base
The maximum amount of acid added will equal the amount of conjugate base from the buffer.
So, the volume of acid will be calculated by using the formula:
Molarity =
volume =
= 0.2025 l
202.50 ml is the volume of acid added.
Answer is: gamma emission or gamma decay.
<span>During gamma emission the nucleus emits radiation without changing its composition, if for example have nucleus with six protons and six neutrons (carbon atom) and after gamma decay there is nucleus with six protons and six neutrons.
</span>Gamma rays are the
electromagnetic waves with the shortest wavelengths (1 pm), highest
frequencies (300 EHz) and highest energy (1,24 MeV).