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

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

How did rutherford's experiment show that thomson's plum pudding model was incorrect?

Inez types 280 words in 7 minutes. if she types at the same rate, how many words will she type in 1 hour

Jim had 5/7 of a pound of candy. she ate 1 3/4 of that candy. how many pounds of candy did he eat?

What is the first dog breed to come to america?

List the three components that comprises a nucleotides

What did the 1933 elections allow the nazi party to do?

Need help fast please

why do people sleep and what are (sleep kind of) dreams and how are they made?

A circle is centered at the point (-7,-1) and passed through (8,7) what is the radius of the circle, what is the Y to the coordinates (-15,?) that lies on this

use gland and hormone in the same sentence