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
erastovalidia [21]
3 years ago
12

Unknown element has two isotopes. Isotope A has a mass of 34 amu and abundance of 52%, isotope B has a mass of 33 amu and abunda

nce of 48%. Find average atomic mass of this element and express your
Chemistry
1 answer:
ZanzabumX [31]3 years ago
4 0

Answer:

x = 33.52 amu

Explanation:

It is given that,

Isotope A has a mass of 34 amu and an abundance of 52%, isotope B has a mass of 33 amu and an abundance of 48%.

Let x is the average atomic mass of this element. It can be calculated as follows :

x=52\%\ \text{of}\ 34+48\%\ \text{of}\ 33\\\\x=\dfrac{52}{100}\times 34+\dfrac{48}{100}\times 33\\\\x=0.52\times 34+0.48\times 33\\\\x=33.52\ \text{amu}

So, the average atomic mass of this element is 33.52 amu.

You might be interested in
Heredity is defined as
AnnyKZ [126]

Answer:

B.

the passage of genetic instructions from one generation to the next generation.

These are called genes. One mate reporduces with another made and the genetic buildup merges 50 % and 50% with genetics(if it's meiosis), or DNA codes from the parents to the offspring that then possess some of the genes. That shows heridity.

8 0
3 years ago
Chemistry! Help! Please!! Thanks
Vladimir79 [104]

Answers:

1. 3-ethyl-3-methylheptane; 2. 2,2,3,3-tetramethylpentane; 3. hexa-2,4-diene.

Explanation:

<em>Structure 1 </em>

  1. Identify and name the longest continuous chain of carbon atoms (the main chain has 7 C; ∴ base name = heptane).
  2. Identify and name all the substituents [a 1C substituent (methyl) and a 2C substituent (methyl).
  3. Number the main chain from the end closest to a substituent.
  4. Identify the substituents by the number of the C atom on the main chain. Use hyphens between letters and numbers (3-methyl, 3-ethyl).
  5. Put the names of the substituents in alphabetical order in front of the base name with no spaces (3-ethyl-3-methylheptane)

<em>Structure 2</em>

  1. 5C. Base name = pentane
  2. Four methyl groups.
  3. Number from the left-hand end.
  4. If there is more than one substituent of the same type, identify each substituent by its locating number and use a multiplying prefix to show the number of each substituent. Use commas between numbers (2,2,3,3-tetramethyl).
  5. The name is 2,2,3,3-tetramethylpentane.

<em>Structure 3 </em>

  1. Identify and name the longest continuous chain of carbon atoms that passes through as many double bonds as possible. Drop the <em>-ne</em> ending of the alkane to get the root name <em>hexa-</em>.
  2. (No substituents).
  3. Number the main chain from the end closest to a double bond.
  4. If there is more than one double bond use a multiplying prefix to indicate the number of double bonds (two double bonds = diene) and use the smaller of the two numbers of the C=C atoms as the double bond locators (2,4-diene)
  5. Put the functional group name at the end of the root name (hexa-2,4-diene).

<em>Note</em>: The name 2,4-hexadiene is <em>acceptable</em>, but the <em>Preferred IUPAC Name</em> puts the locating numbers as close as possible in front of the groups they locate.

7 0
3 years ago
Which of the following is the balanced equation for this process?
Hunter-Best [27]
The answer is A.Hope this helps
8 0
3 years ago
When weather starts to average out in a pattern over many years, like 30 years, scientists can calculate the average weather con
meriva

Answer:

the earth is different in all places

Explanation:

6 0
3 years ago
Collin uses balloons to investigate static electricity. Which of the following BEST
vovangra [49]

Answer:

The positive and negative electrons (or protons, don't really know) are opposites, so they attract each other, giving a whole new meaning to "Opposites attract."

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which group has 1 valence electron?
    12·1 answer
  • Molecules of carbon dioxide are linear. What type of force exists between these molecules?
    12·1 answer
  • By studying fossils, scientists get an idea of ....
    14·1 answer
  • PLEASE HELP ASAP
    5·1 answer
  • Question 6: what do i fill in the blank space? what are the units?
    9·2 answers
  • Assume that temperature and number of moles of gas are constant in this problem.
    10·1 answer
  • Which element is commonly found in meteorites
    9·2 answers
  • No links Biodiversity is highest near the
    7·2 answers
  • Stock System naming for NaCl4, SO3, As2F4.
    10·1 answer
  • 8. (01.01 LC)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!