Tungsten is the metal used in the filaments of incandescent light bulbs. Naturally occurring tungsten consists of five isotopes

Question

3 years ago

7

Tungsten is the metal used in the filaments of incandescent light bulbs. Naturally occurring tungsten consists of five isotopes

with the following isotopic masses and abundances:
Calculate the atomic mass of naturally occurring tungsten to five significant figures.

Chemistry

2 answers:

puteri [66] · Answer 1 · 2021-12-18T01:53:30+03:00

puteri [66]3 years ago

8 0

Each of the Isotopic mass * its Abundance Sum together divide by 100.
(179.946706*0.12 + 181.948206*26.5 + 182.9502245*14.3 + 183.9509326*30.64 + 185.954362*28.43 ) / 100
You get 183.84 (5s.f. ) or (183.8417786)
_award brainliest if helped!

emmainna [20.7K] · Answer 2 · 2021-12-18T03:53:59+03:00

emmainna [20.7K]3 years ago

5 0

To calculate the average atomic mass, multiply the mass of the isotope by its corresponding abundance:
179.946706 * .0012 + 181.948206 * .2650 + 182.9502245 * .1431 + 183.9509326 * .3064 + 185.954362 * .2843 = <span>183.84178 = 183.84</span>