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
vfiekz [6]
3 years ago
13

An element has an average atomic mass of 1.008 amu. It consists of two isotopes , one having a mass of 1.007 amu, and one having

a mass of 2.014 amu. The isotope that is most abundant is:
Chemistry
1 answer:
dimulka [17.4K]3 years ago
6 0

Answer:

The most abundant isotope is 1.007 amu.

Explanation:

Given data:

Average atomic mass = 1.008 amu

Mass of first isotope = 1.007 amu

Mass of 2nd isotope = 2.014 amu

Most abundant isotope = ?

Solution:

First of all we will set the fraction for both isotopes

X for the isotopes having mass  2.014 amu

1-x for isotopes having mass 1.007 amu

The average atomic mass is 1.008 amu

we will use the following equation,

2.014x + 1.007  (1-x) = 1.008  

2.014x + 1.007  - 1.007 x = 1.008  

2.014x - 1.007x  =  1.008  -  1.007

1.007 x = 0.001

x= 0.001/ 1.007

x= 0.0009

0.0009 × 100 = 0.09 %

0.09 % is abundance of isotope having mass  2.014 amu because we solve the fraction x.

now we will calculate the abundance of second isotope.

(1-x)

1-0.0009 = 0.9991

0.9991 × 100= 99.91%

You might be interested in
Which is an "enumerated" power of Congress?
fredd [130]

Answer:

In this section, we consider how several of the enumerated powers of Congress under the original Constitution have been interpreted. The Congress shall have Power To lay and collect Taxes, Duties, Imposts and Excises, to pay the Debts and provide for the common Defence and general Welfare of the United States.

6 0
3 years ago
Read 2 more answers
I WILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST
snow_tiger [21]

Answer:

I think it's B

Explanation:

I might be wrong, but please tell me.

5 0
3 years ago
A solution contains 0.60 mg/ml mn2+. what minimum mass of kio4 must me added to 5.00 ml of the solution in order to completely o
azamat
The given solution of Mn²⁺ is 0.60 mg/mL.
Hence mass of Mn²⁺ in 5 mL of solution = 0.60 mg/mL x 5 mL = 3 mg

Molar mass of Mn = 54.9 g/mol
Hence, moles of Mn²⁺ = 3 x 10⁻³ g / 54.9 g/mol = 5.46 x 10⁻⁵ mol

The balanced equation for the reaction is,
2Mn²⁺ + 5KIO₄ + 3H₂O → 2MnO₄⁻ + 5KIO₃ + 6H⁺

The stoichiometric ratio between Mn²⁺ and KIO₄ is 2 : 5

Hence, moles of KIO₄ reacted = 5.46 x 10⁻⁵ mol x (5 / 2)
                                                 = 13.65 x 10⁻⁵ mol
Molar mass of KIO₄ = 230 g/mol

Hence needed mass of KIO₄ = 13.65 x 10⁻⁵ mol x 230 g/mol
                                               = 0.031395 g
                                               = 31.395 mg
                                               ≈ 31.4 mg
5 0
3 years ago
PLEASE HELP!!!! What is the abbreviated electron configuration for nitrogen and for chlorine
tino4ka555 [31]

Answer:chlorine’s is (Ne) 3s2 3p5

Explanation:lol

5 0
3 years ago
Read 2 more answers
Which of the following is a negative effect of a volcano?
siniylev [52]

I believe it might be A. Damaged buildings.

B is a positive and so is Tourism.

6 0
3 years ago
Other questions:
  • Nomadic people received income from where
    13·2 answers
  • In the Formula 3H2O what is the 3 called
    9·2 answers
  • Consider the following standard heats of formation:
    8·1 answer
  • What kind of hair shampoo can more efficiently clean hair,acidic or alkaline,why?
    8·1 answer
  • Inertia is based only on an object’s Question 1 options: mass net force velocity weight
    6·2 answers
  • HELP!!! What two volume units have the same value?
    12·2 answers
  • ANSWER ASAP!<br> How does a combustion reaction form?
    13·2 answers
  • KClO3 (s) KCl (s) + 02 (g)​<br><br><br>How do you balance this equation
    10·1 answer
  • I really need the help, come on please, I got a Walmart gift CARD for anyone who can fill this out correctly
    8·1 answer
  • write and balance the equation showing the reaction between iron (iii) oxide and carbon monoxide to form iron (ii) oxide and car
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!