# The ratio for an mass-to-charge electron is 5.64 x 10^(-12) kg/C. In another experiment, using Millikan's oil drop apparatus, the found the charge on the electron is 1.605 x 10^(-19) C. What would be the mass of the electron, according to these data?

Feb 13, 2017

We have the ratio $\text{mass"/"charge}$, and $\text{charge}$........

#### Explanation:

And should I multiply $\text{mass"/cancel"charge"xxcancel"charge}$, I should get an answer of $\text{mass}$. Let's see:

$5.64 \times {10}^{-} 12 \cdot k g \cdot \cancel{{C}^{-} 1} \times 1.605 \times {10}^{-} 19 \cdot \cancel{C}$

$\cong 1 \times {10}^{30} \cdot k g$ for a single electron.

Well, I got the units of mass, which is good, however, you can refine the estimate.