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
svet-max [94.6K]
2 years ago
15

Calculate the average atomic mass for X

Chemistry
1 answer:
Minchanka [31]2 years ago
3 0

Answer:

39.0229 amu

Explanation:

Hello there!

In this case, according to given information, the idea here is to multiply the percent abundance by the mass number of each isotope and then add them all together as shown below:

=0.0967*38+0.7868*39+0.1134*40+0.0031*41\\\\=3.6746+30.6852+4.536+0.1271\\\\=39.0229amu

Regards!

You might be interested in
Explain why the answer is correct and why the others aren’t. <br> Pleaseeee
Naya [18.7K]

Answer:

Buffalo and Watertown.

Explanation:

This is correct as the Interior lowlands are located ib the US. These are correct as the others are in the US but aren't located anywhere near the Interior Lowlands.

7 0
3 years ago
C2d3 has a solubility product constant of 9.14×10−9. What is the molar solubility of c2d3?
shutvik [7]

Answer : The molar solubility of C_2d_3 is 9.67\times 10^{-3}M

Explanation :

The solubility equilibrium reaction will be:

C_2d_3\rightleftharpoons 2C^{3+}+3d^{2-}

The expression for solubility constant for this reaction will be,

Let the molar solubility be, 'x'

K_{sp}=(2x)^2\times (3x)^3

Now put all the given values in this expression, we get:

9.14\times 10^{-9}=108x^5

x=9.67\times 10^{-3}M

Therefore, the molar solubility of C_2d_3 is 9.67\times 10^{-3}M

5 0
3 years ago
Consider this reaction:
storchak [24]
I say the Correct answer is
 
B)  There will be a shift toward the products.
8 0
3 years ago
For the balanced chemical equation shown below, what are the coefficients in order from reactants to products? nh3 + o2 → no + h
ohaa [14]

The answer is coefficient of reactant is 4,3  and product is 4,2

Balance chemical is as follows:

4NH₃ + 3O₂ ------>4NO+ 2H₂O  

So the coefficient of reactant is 4,3

While that of product is 4,2

So the answer is coefficient of reactant is 4,3  and product is 4,2

7 0
3 years ago
Read 2 more answers
What do you notice about the location of the elements in each family for the periodic table?
Margarita [4]
Metals are placed in one spot,the nonmetals are placed in another spot,And lastly the metalloids are seperated
7 0
3 years ago
Other questions:
  • Calculate the number of vacancies per cubic meter for some metal, M, at 773°C. The energy for vacancy formation is 0.97 eV/atom,
    10·1 answer
  • Is the process of bananas ripening a chemical change or a physical change? explain?
    14·1 answer
  • A woman’s menstrual cycle usually lasts about 28 days T/F
    15·2 answers
  • In the determining molar volume experiment, we will use water. how will vapor pressure play a role in this experiment?
    11·2 answers
  • Can vinegar decompose into other harmful chemicals
    6·1 answer
  • At elevated temperatures, dinitrogen pentoxide decomposes to nitrogen dioxide and oxygen:_________.
    15·1 answer
  • When an electron jumps from a high energy state to a lower state, what form does the emitted energy take?
    7·2 answers
  • A mixture of 10 cm3 of methane and 10 cm3 of ethane was sparked with an excess of oxygen. After cooling to room temperature, thr
    11·1 answer
  • What is the mass of 1.5 moles of CO2?
    6·1 answer
  • The number of protons in an atom is known as its atomic
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!