scientific notation-moles-particles

Front

What is scientific notation?

Back

A method of expressing numbers as a product of a coefficient (between 1 and 10) and a power of 10.

Front

How do you convert a large number to scientific notation?

Back

Move the decimal point to the left until only one non-zero digit remains to the left of the decimal, and count the number of places moved; this becomes the positive exponent.

Front

How do you convert a small number to scientific notation?

Back

Move the decimal point to the right until only one non-zero digit remains to the left of the decimal, and count the number of places moved; this becomes the negative exponent.

Front

What is the value of 1 mole of any substance in terms of particles?

Back

1 mole contains approximately 6.022 x 10^23 particles (Avogadro's number).

Front

If the exponent in scientific notation is negative, what does it indicate about the original number?

Back

It indicates that the original number is a really small number.

Front

How many molecules are in 1 mole of H2O?

Back

1 mole of H2O contains approximately 6.022 x 10^23 molecules.

Front

How do you write 8.317 x 10^6 in standard form?

Back

8,317,000.

Front

How would you write 0.0005 in scientific notation?

Back

5 x 10^-4.

Front

What is the first part of scientific notation?

Back

The first part is a number between 1 and 10.

Front

Is it true that scientific notation can have a coefficient greater than 10?

Back

False, the coefficient must be between 1 and 10.