An atom of gold has a mass of 3.21x10^-22.What is the mass of 8000 atoms?Express in scientific notation.
*3.25x10^-22 correction
(3.25*8)x10^(-22+3) = 26x10^-19 = 2.6x10^-18
To find the mass of 8000 atoms of gold, we need to multiply the mass of one atom by 8000.
Mass of one atom of gold = 3.21x10^-22
Number of atoms = 8000
Mass of 8000 atoms = (Mass of one atom) x (Number of atoms)
= 3.21x10^-22 x 8000
To multiply the numbers, we multiply the coefficients and add the exponents:
3.21 x 8000 = 25,680
To add the exponents, we add the powers of 10:
10^-22 x 10^3 = 10^-22+3 = 10^-19
Therefore, the mass of 8000 atoms of gold is 2.568x10^-19, expressed in scientific notation.
To find the mass of 8000 atoms of gold, we first need to determine the mass of one atom.
Given: Mass of one gold atom = 3.21x10^-22
To find the mass of 8000 atoms, we can multiply the mass of one atom by 8000.
Mass of 8000 gold atoms = (3.21x10^-22) x (8000)
To multiply these numbers, we multiply the coefficients and add the exponents:
(3.21) x (10^-22) x (8000) = 25,680 x 10^-22
To express this product in scientific notation, we need to move the decimal point one place to the left, resulting in a coefficient between 1 and 10.
25,680 x 10^-22 = 2.568 x 10^-19
Therefore, the mass of 8000 gold atoms is 2.568 x 10^-19, expressed in scientific notation.