Seudónimo Seudónimo
  • 25-07-2019
  • Chemistry
contestada

A nanotechnology equipment requires 7.40 x 10^18 atoms of potassium. What is the mass of this sample?

Respuesta :

MathPhys
MathPhys MathPhys
  • 25-07-2019

Answer:

4.81×10⁻⁴ g K

Explanation:

Convert atoms to moles:

7.40×10¹⁸ atoms K × (1 mol K / 6.02×10²³ atoms) = 1.23×10⁻⁵ mol K

Convert moles to mass:

1.23×10⁻⁵ mol K × (39.1 g K / mol K) = 4.81×10⁻⁴ g K

Answer Link

Otras preguntas

Which supernatural element described in this passage helps build tension by foreshadowing a future event?
The substance that gets broken down in a homogeneous mixture is the .
Melania walked her dog 2 1/5 miles. Cathy walked her dog 1 3/4 times as far as Melania did. how many more miles did Cathy walk her dog
This amendment to the U.S. Constitution allowed for the direct election of U.S. Senators
name two ways that living things use proteins
How many miles will paez family drive each day if they decide to take 5 days to drive 865 mi to Dallas
What issue were the Virginia and New Jersey Plans attempting to resolve?
Suki split five dog treats equally among her six dogs. which fraction represents this division
write a double fact for 2+3
A dictatorship can also be a democracy is true or false