rpufall3374 rpufall3374
  • 07-08-2017
  • Chemistry
contestada

What is the mass in kilograms of 1.20x 1028 atoms of copper, cu?

Respuesta :

ray2me123
ray2me123 ray2me123
  • 08-08-2017
Mass of 1 atom of Cu=63.546 A.M.U
=63.546×1.66×10^(-27) kg
= 105.48636×10^(-27) kg
So,
Mass of 1.2×1038 atoms of Cu
= 1.2×1028×105.48636×10^(-27) kg
= 130127.973696×10^(-27) kg ANS !!!!

Note that: 1 A.M.U=1.66×10^(-27) kg
Answer Link

Otras preguntas

Which of the following would not describe Georgia? Southeast South America Deep South North America L
A cement block accidentally falls from rest from the ledge of a 51.1-m-high building. When the block is 13.4 m above the ground, a man, 1.70 m tall, looks up an
give me something to draw,it can be anything!​
Attempt 1013 Which expression would represent the cost of one CD, if the total cost for three of them is $36? 36-3 3(36) 36 3 3 + 36 NEXT QUESTION ASK FOR HELP
In three to five sentences, discuss the process you would use to determine whether Internet resources are suitable and reliable sources of information.
What is another term for tariff? A. deadweight loss B. price break C. tax
haley spent 1/2 of her money in a department store. she spent 1/4 of her remaining money in a stationary store. She spent 2.60 on lunch. This left her completel
Why was it so difficult for Ehrenreich and the people she met to find housing?
What are the 3 qualifications of a product
Given the following expressions: A. 53 • 5–4 B. 3^5/3^-6 C.(1/4)^3 • (1/4)^2 D. (-7)^5/(-7)^7 Part 1: Use operations of exponents to simplify each expression (A