ariannaleal04 ariannaleal04
  • 03-02-2021
  • Chemistry
contestada

Need help how to find the atomic mass?

Need help how to find the atomic mass class=

Respuesta :

froge87832
froge87832 froge87832
  • 03-02-2021

use the formula:

average atomic mass= atomic mass1 × abundance1/100 + atomic mass2 × abundance2/100

62.9296 × 69.15/100 + 64.9278 × 30.85/100=

62.9296 × 0.6915 + 64.9278 × 0.3085=

43.5158 + 20.0302=

63.546 amu

so the answer is 63.546 amu

(the element is europium)

Answer Link

Otras preguntas

1. In what ways was the American victory at Midway & the Japanese triumph at Pearl Harbor alike? 2. Why was Okinawa a significant island in the war in
3. (Skill: Evaluating function notation.) Consider the function f(x) = x2 - 3x +1. What is f(-4)? a. ex] a. 3
Use the correct adjective form to complete this sentence: Las cebollas son ______. 1. picanta 2. picante 3. picantes 4. picantas
7. What was the American reaction to the Soviets obtaining nuclear power?
Which issue led to calls for a new constitution during the Antebellum era of Louisiana? The state’s urban residents were unfairly represented when compared to r
plz halp i need gud gradee...................
what are the next four multiples of the fraction: 5/6
Explain why the watermark that Weyman was able to see is significant.
What was Christian art like before the Edict of Milan?
−2x=x^2 minus 6, Rewrite the equation by completing the square. please answer