Respuesta :

jcherry99
1 pico anything = 1 * 10^-12 
0.300 pico coulombs = 0.300 * 10^-12 coulombs = 3.00 * 10^-13 coulombs.

1 proton has a charge of 1.60 * 10^-19 c
1*10^6 protons have a charge of 1.6 * 10^-19 * 1*10^6
Gross Charge of protons = 1.6 * 10^-13 c

That's what the charge should be if only protons were present.
However there are electrons around and when they are taken into consideration, the charge drops to 3.00 * 10^-13

So the difference allows us to calculate the number of electrons. The way the question is worded, this is impossible. Sorry.

Answer:

[tex]N_1 = 8.75 \times 10^5 [/tex]

Explanation:

Net charge on amoeba is given as

[tex]Q = 0.300 pC[/tex]

also we know that

[tex]1 pC = 10^{-12}C[/tex]

now we know that

[tex]Q = 0.300 \times 10^{-12} C[/tex]

here we know by the quantization of charge

[tex]Q = (N + N_1)e[/tex]

[tex]0.3 \times 10^{-12} = ((1.00 \times 10^6) + N_1)(1.6 \times 10^{-19})[/tex]

now we have

[tex]1.87 \times 10^6 = 1.00 \times 10^6 + N_1[/tex]

[tex]N_1 = 8.75 \times 10^5 [/tex]