1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Luda [366]
3 years ago
5

A hypothetical element consists of four isotopes. Use the information below to calculate the average atomic volume mass of the e

lement. Work must be shown for credits to be given.

Chemistry
1 answer:
Keith_Richards [23]3 years ago
8 0

Answer:

104.969 amu.

Explanation:

From the question given above, the following data were obtained:

Isotope A:

Mass of A = 107.977 amu

Abundance (A%) = 0.1620%

Isotope B:

Mass of B = 106.976 amu

Abundance (B%) = 1.568%

Isotope C:

Mass of C = 105.974 amu

Abundance (C%) = 47.14%

Isotope D:

Mass of D = 103.973 amu

Abundance (D%) = 51.13%

Average atomic mass =?

The average atomic mass of the element can be obtained as follow:

Average atomic mass = [(Mass of A × A%) /100] + [(Mass of B × B%) /100] + [(Mass of C × C%) /100] + [(Mass of D × D%) /100]

Average atomic mass = [(107.977 × 0.1620)/100] + [(106.976 × 1.568)/100] + [(105.974 × 47.14)/100] + [(103.973 × 51.13)/100]

= 0.175 + 1.677 + 49.956 + 53.161

= 104.969 amu

Therefore, the average atomic mass of the element is 104.969 amu.

You might be interested in
1 Calcium carbonate breaks down on heating to produce calcium oxide and carbon dioxide gas.
Alborosie

Answer:  See below

Explanation:

1.  a)  0.15 moles calcium carbonate  (15g/100g/mole)

   b)  0.15 moles CaO  (molar ratio of CaO to CaCO3 is 1:1)

   c)   8.4 grams CaO  (0.15 moles)*(56 grams/mole)

2. a)  0.274 moles Na2O  (17g/62 grams/mole)

   b)  46.6 grams NaNO3  (2 moles NaNO3/1 mole Na2O)*(0.274 moles Na2O)*(85 g/mole NaNO3)

7 0
3 years ago
A pure white crystalline compound was found to melt at 112.5-113.0oC when taken on a melting point apparatus, and on further hea
Sergeeva-Olga [200]

According to the question, the determined melting point of the compound is 112.5-113.0oC. When the solidified compound was retried, the melting point was found to be 133.6-154.5oC. This greater range higher than  112°C is caused by reusing samples leads to errors.

A pure sample is known by its sharp melting point. A pure sample does not melt over a large range. We can see this in the predetermined melting points of the pure sample(112.5-113.0oC).

However, reusing a sample introduces errors because the pure sample may become contaminated leading to a larger and higher range of melting point (133.6-154.5oC) which is far above  112°C.

Learn more: brainly.com/question/5325004

8 0
2 years ago
Can a solid defuse into both a liquid and a solid
MariettaO [177]
Diffusion of one state of matter into another: Solid can diffuse in liquid. When sugar is added to water, whole water becomes sweet without stirring it because of diffusion of sugar into water. ... Carbon dioxide and oxygen are the two gases in air which dissolves in water by diffusion.
5 0
3 years ago
Read 2 more answers
What is different types of <br> Metal
Slav-nsk [51]

Answer:

copper metal and steel metak

3 0
3 years ago
Read 2 more answers
What causes the
attashe74 [19]
DNA
sorry if it’s wrong, but that answer seems reasonable
3 0
3 years ago
Other questions:
  • What is the symbol for gold
    8·1 answer
  • A scientist mixes water (containing no salt) with a solution that contains 45% salt. she wants to obtain 180 ounces of a mixture
    12·2 answers
  • Which element has this electron configuration? <br> astatine<br> bromine<br> chlorine<br> fluorine
    9·2 answers
  • How solar cookers are useful to society by doing one of the following
    5·1 answer
  • Two atoms of the same substance wi the different numbers of neutrons are called what
    14·1 answer
  • A speed-time graph shows a line sloping downward. How was the speed changing?
    11·1 answer
  • What best explains the relationship between structure and function of the cell membrane?
    12·2 answers
  • Molasses is a by-product of the refining of sugar cane. The specific composition of molasses varies depending upon the source of
    15·1 answer
  • The specific heat of water is 4.184 J/g˚C How much heat energy is absorbed when 88.0 g of water is heated from 5.8 C to 35 C? (H
    11·1 answer
  • The specific heat of silver is 0.06 cal/g°
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!