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
Ira Lisetskai [31]
3 years ago
5

A binary compound created by reaction of bismuth and an unknown element E contains 52.07% Bi and 47.93% E by mass. If the formul

a of the compound is Bi2E3, calculate the atomic mass of E.
Chemistry
1 answer:
yulyashka [42]3 years ago
6 0

Answer:

Atomic mass of E is 128.24

Explanation:

  • The percentage composition by mass of an element in a compound is given by dividing the mass of the element by the total mass of the compound and expressing it as a percentage.
  • In this case; the compound Bi₂E₃

Percentage composition of bismuth = 52.07%

Percentage composition of E = 47.93%

Mass Bismuth in the compound is (2×208.9804) = 417.96 g

Therefore,

To calculate the atomic mass of E

52.07% = 417.96 g

47.93% = ?

            = (47.93 × 417.96 ) ÷ 52.07 %

            = 384.729

         E₃ = 384.729

Therefore; E = 384.729 ÷ 3

                     = 128.24  

The atomic mass of E is 128.24

You might be interested in
Can you help me please, I’ll mark brainliest.
GrogVix [38]

Answer:

i think A

Explanation:

6 0
3 years ago
What is the study of blood cells
LiRa [457]

Answer:

Hematology is the study of blood

Explanation:

The cellular component consists of three major cell types, all of which arise from hematopoietic stem cells located primarily in the bone marrow: red blood cells (RBCs), white blood cells (WBCs), and platelets.

6 0
3 years ago
Does sound travel best through solids, liquids, or gases?
IRISSAK [1]
In gas the speed of sound is 343.2 meters per second, in liquid the speed of sound is 1,484 meters per second and in solids like steel it travels 5,120 meters per second.
8 0
3 years ago
Read 2 more answers
Why is it important to start at the zero mark of a ruler/meterstick + triple beam balance when making measurements?
sergeinik [125]
Because if you start at one for example you starting at a extra cm/m/mm. So when you get your measurement result it will be wrong by just one cm/m/mm. Hope this wasn't too confusing.
3 0
3 years ago
What observations can we make that are the result of the rotation of the earth on its axis? (How do we know that the earth is ro
Liula [17]

day and night is the main way you can tell as well as the stars moving across the sky, and we can tell it rotates by looking at the sky and seeing the sun move across the sky during the day.

8 0
3 years ago
Other questions:
  • 6. Calculate the molarity if 35.0 grams of KBr are dissolved in 700. ml?
    10·2 answers
  • Explain the action of steam on a metal​
    9·1 answer
  • Two steel containers of equal volume contain two different gases at the same temperature. the first container holds 1.3 moles of
    6·1 answer
  • Which of the following isotopes has the same number of neutrons as phosphorus – 21 (atomic number 15)
    10·1 answer
  • If the mass is 6.5g, and the volume is 25mL.. what is the density? PLEASE ANSWER ASAP
    15·1 answer
  • 5. A filled balloon has a volume of 5.6 L at 25 ˚C and it is placed into liquid nitrogen at a temperature of -78 ˚C. What is the
    9·1 answer
  • WILL GIVE LOTTA POINTS AND MAKE BRAINLIEST
    9·2 answers
  • 9.27 mol of oxygen is equal to______molecules of oxygen <br> Please help I need it
    10·1 answer
  • If a reaction occurs, what will be the products of the unbalanced reaction below?
    8·1 answer
  • What is electrons configuration for arsenic ?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!