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nexus9112 [7]
3 years ago
12

How many electrons are necessary to produce a charge of -0.90 c ?

Chemistry
1 answer:
yanalaym [24]3 years ago
4 0

One electron has a charge of -1.6* 10^-19 c

x electrons have a charge of -0.90 c


1/x = -1.6 * 10^-19 c / - 0.9 c cancel the c's. and the - signs.


1/x = 1.6 * 10^-19 / 0.9 Cross multiply

0.9 = 1.6 * 10^-19 x Divide by 1.6 * 10^-19

0.9 / 1.6 * 10^-19 = x

x = 5.625 * 10^18 electrons.

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