Scientific Notation

7 X 1010

The zeros are superfluous.

take the negative logarithm

ex. 10^-4 has a pH of 4

Simply multiply the base 10 to some exponent by the given value to obtain the number in standard form. For instance:

1.43214 x 105

Shift 5 decimal places to the right to obtain:

143214.0

2.5 x 1013

3.61 x 10 -3

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This number can be written (in scientific notation) as either 3.95x10-5 or 39.5x10-6.

6,000,000 in Scientific Notation = 6 x 106

4.5X10 exponent 1

3.70207 x 102

It is 3.4*10^11.

two hundred ten billionths in scientific notation is 2.10 x 10^-8

0.0058421998 = 5.8421998 x 10^-3

It is: 1.0*10^-6

8700000 = 8.7 x 10^6

To write a number in scientific notation, write the number starting from the first non-zero digit and put the decimal point after the first digit. To work out the power of ten, count how many digits the decimal point has to move to get back to where it was in the original number, but if it is has to move left make this number negative; this number is the power of the ten.

eg 123 = 1.23 x 10^2 as decimal point has to move 2 digits to the right;

eg 0.0123 = 1.23 x 10^-2 as the decimal point has to move 2 digits to the left.

7.6 x 10^3

16.5 in scientific notation is 1.65 x 10^1

It is: 7.22*10-3

6.01 x 10 -7

4.7 x 10-9

5.70*10-4. The final 0 is indicative of the precision.

They're having some trouble nailing down the diameter of a proton. It's somewhere around 8.5 x 10^-16 meters.

8.22 times 10 to the negative 3

It is: 8.2*10^-7

2 billion = 2,000,000,000 = 2 x 10^9