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
Compounds A and B react to form compounds C and D according to the equation: aA + bB → cC + dD. Under which conditions will the
Ipatiy [6.2K]

Answer: A. The reaction takes place in one step.

Explanation:

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

Molecularity of the reaction is defined as the number of atoms, ions or molecules that must colloid with one another simultaneously so as to result into a chemical reaction.

Order of the reaction is defined as the sum of the concentration of terms on which the rate of the reaction actually depends. It is the sum of the exponents of the molar concentration in the rate law expression.

Elementary reactions are defined as the reactions for which the order of the reaction is same as its molecularity and order with respect to each reactant is equal to its stoichiometric coefficient as represented in the balanced chemical reaction.

aA=bB\rightarrow cC+dD

Rate=k[A]^a[B]^b

k= rate constant

a= order with respect to A

b = order with respect to B

5 0
3 years ago
Read 2 more answers
I need information about <br>"forming colloid"<br>THANK YOU! ​
notka56 [123]

Answer:

Condensation methods from colloidal particles by aggregation of molecules or ions. Examples of colloids are really in common in evryday life, eg. Mayonnaise, butter, milk, gelatin, paper etc..

Every colloid consists of two parts :colloidal particles and the dispersing medium.

3 0
3 years ago
Pls help because im not smart.-.
tangare [24]

Answer:

Im not smart either but im pretty sure its D because its a pie chart so its asking how many and pie charts tell you how much something has

Explanation:

3 0
2 years ago
Read 2 more answers
C12H22O11 + 11 H2SO4 → 12 C + 11 H2SO4 + 11 H2O
BlackZzzverrR [31]
Answer:
            T<span>he gaseous product of this reaction is water (Option-A).

Explanation:
                   This is a very interesting experiment. Take sugar in a beaker and add concentrated Sulfuric Acid into it. After a while an exothermic reaction will initiate with the formation of Carbon Black and Water vapors. You will observe the formation of hard and hot stem like body which is completely Black. This blackness is due to C and the water vapors will eliminate in the form of steam as the temperature has arised.</span>
5 0
3 years ago
Example of a neutral mutation?
Norma-Jean [14]

The answer is D

Explanation: A RED FLOWER WITH ONE PART COLORED YELLOW

3 0
3 years ago
Read 2 more answers
Other questions:
  • Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8). When 1.025 g of naphthalene is burned in a bomb calorim
    13·1 answer
  • A material has a density of 8.9 g/cm^3. You have 3 grams of the substance. How much space does it take up?
    12·1 answer
  • 1. The actual yield of a product in a reaction was measured as 1.20 g. If the theoretical yield of the product for the reaction
    14·1 answer
  • The heaviest known isotope of hydrogen is called tritium, . it decays by beta emission, and has a half-life of 12.3 years. what
    6·1 answer
  • All of the following elements will form ions by gaining
    11·1 answer
  • Which question about dogs could be answered through investigation
    10·1 answer
  • Look at the four images<br>Which image represents a tropical rainy climate?<br>1 2 3 4​
    15·2 answers
  • How did American prepare for and fight for the France battle
    11·2 answers
  • Which section of the ocean floor is near the coastline of all continents?
    12·1 answer
  • Are these cells animal cells, or are they or plant cells?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!