Answer:
[tex]N=1.56*10^{20}[/tex] protons
Explanation:
The total charge Q+=+25.0C is the sum of the charge of the N protons, with charge q :
[tex]Q_{+}=N*q_{p}[/tex]
q_{p}=1.6*10^{-19}C charge of a proton
We solve to find N:
[tex]N=Q_{+}/q_{p}=25/(1.6*10^{-19})=1.56*10^{20}[/tex]
