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What is the current in amperes if 1200Na+ ions flow across a cell membrane in 3.1us? The charge on the sodium is the same as on an electron, but positive.

User Fresh
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Answer:

The current in amperes when 1200 Na+ ions flow across a cell membrane in 3.1 microseconds is exactly 6.195 x 10^-11 amperes.

Step-by-step explanation:

To calculate the current in amperes, we need to use the formula:

  • I = Q/t

where I is the current in amperes, Q is the charge in coulombs, and t is the time in seconds.

To find the charge of 1200 Na+ ions, we need to multiply the number of ions by the charge on each ion. Since the charge on each Na+ ion is the same as the charge on an electron, but positive, it is equal to +1.602 x 10^-19 coulombs.

The charge of 1200 Na+ ions is therefore:

Q = 1200 x 1.602 x 10^-19 coulombs/ion = 1.9224 x 10^-16 coulombs

The time given is 3.1 microseconds, which is 3.1 x 10^-6 seconds.

Now we can plug in the values into the formula:

I = Q/t = (1.9224 x 10^-16 coulombs) / (3.1 x 10^-6 seconds) = 6.195 x 10^-11 amperes

Therefore, the current in amperes when 1200 Na+ ions flow across a cell membrane in 3.1 microseconds is approximately 6.195 x 10^-11 amperes.

User Budi Darmawan
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8.0k points
2 votes
What is the current in amperes if 1200Na+ ions flow across a cell membrane in 3.1us? The charge on the sodium is the same as on an electron, but positive.
User Martinarroyo
by
8.1k points
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