Electrons = protons
protons = atomic number
protons + neutrons = atomic mass
Therefore: a) protons + 7 = 15
protons= 15 -7
protons= 8
B) Remember proton = atomic number
so atomic number = 8
C)Now we know the atomic number so we can easily check on the periodic table what element has an atomic number of 8, which is Oxygen
Measurement is a process of finding a number that shows the amount of something.
Brainliest? Thanks!
Answer: pH of buffer solution is 8.1
Explanation:
The formula for the Henderson–Hasselbalch equation is:
![pH=pK_a+\log\frac{[A^-]}{[HA]}](https://tex.z-dn.net/?f=pH%3DpK_a%2B%5Clog%5Cfrac%7B%5BA%5E-%5D%7D%7B%5BHA%5D%7D)
is the concentration of ![[H^+]](https://tex.z-dn.net/?f=%5BH%5E%2B%5D)
is the acid dissociation constant,
and 
are concentrations of the conjugate base and starting acid.
Putting in the values we get:
Thus pH of buffer solution is 8.1
Are you looking for the definition or answer? Since nomenclature is just definition by name or giving a specific name; the overall answer should be Carbon Dioxide.
P1V1=P2V2
745 torr*1 atm/760 torr=0.980 atm
122 atm*651L=0.980 atm * x
x=(122 atm*651L)/0.980 atm =81042 L ≈ 81000 L=8.10*10⁴ L
8.10*10⁴ L is second answer looks like this?
