izzy5683 izzy5683
  • 13-02-2021
  • Chemistry
contestada

A ring of pure gold has a mass of 17.3 grams. How many atoms of gold are in the ring?

Respuesta :

octopods
octopods octopods
  • 13-02-2021

Answer:

5.29936 x 10^23 atoms

Explanation:

To do this, we need to find the number of moles in the ring so that we can then multiply that by Avogadro's number (6.022×10^23).

equation for finding moles: [tex]n = \frac{mass}{M_{r} }[/tex]

substitute in the known values: [tex]n = \frac{17.3}{197 }[/tex]

divide to find the value of n: 0.088 mol

Multiply by Avogadro's constant: 0.088 x 6.022 x 10^23

= 5.29936 x 10^23 atoms in the ring.

hope this helps!

Answer Link

Otras preguntas

Solve the system of linear equations by graphing.
How is the the punch card system for the jacquard loom connected to the way that modern computers work
simplify the expression 1/4x +3/4×​
PLEASE HELPME HERE please
when was vryburg founded and by who?​
For each paragraph, write a one sentence summary and a question in which you would like to find the answer. (This does not apply to sentence 6) Best gets brain
Heat travels from a substance to a substance
Reduced vitamin K is needed for the synthesis of prothrombin. An enzyme, vitamin K epoxide reductase (VKOR), converts vitamin K to reduced vitamin K. The diagra
Ken is a 78-year-old gentleman with increasing difficulty breathing over the last three months. He also complains of chest pain when he does small amounts of ex
6^5x1/6^5 =_______. What