How do you write <span title="602,214,179,000,000,000,000,000">602,214,179,000,000,000,0...</span> in scientific notation?

Question

Is it 602,214,17.9 * 10 to the 16 power.

Answer 1

6.0221417.9E23

In other words its 6.02214179 * 10^23

Answer 2

6.022141798 * 10 to the 23rd

Answer 3

No.

I think that is Avagadro&#039;s number, by the way - but the whole point of scientific notation is that the first number is always between 1 and 10.  

To do this properly it should be 6.02214197 * 10 ^ 23.

Count how many times you&#039;d have to move the decimal point to get it from where it is originally, to where you want it, and that is the exponent for 10.

Answer 4

Scientific notation must always be in the form a * 10^n, where 1 &lt;= a &lt; 10.  Therefore, you don&#039;t write 60,221,417.9 * 10^(16), you write:

6.02214179 * 10^(23).

This is the correct expression of the number in scientific notation.

As shishkani noted, this is in fact Avogadro&#039;s number, which you usually memorize as 6.02 * 10^(23) elementary particles per mole of substance.