Cell theory was discovered from the scientist
Answer:
To find the number of neutrons, subtract the number of protons from the mass number. number of neutrons
Explanation:
Explanation:
o2- Due to lowest Zeff.
I had that question and my answer was this. because you did not put options.
First convert volume to mass:
mass = 0.789 g/mL * 155 mL = 122.295 g
Then convert mass to number of moles:
number of moles = 122.295 g * (1 mole / 46 g) = 2.66 moles
Using avogadros number, we get the molecules:
<span>number of molecules = 2.66 moles * 6.022 x 10^23 molecules
/ mole = 1.6 x 10^24 molecules</span>
