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
Maslowich
3 years ago
14

Which statement correctly describes the relationship between reactant and yield? The actual yield is calculated from the amount

of the excess reactant present.
The actual yield is calculated from the amount of the limiting reactant present.

The theoretical yield is calculated from the amount of the excess reactant present.

The theoretical yield is calculated from the amount of the limiting reactant present.
Chemistry
2 answers:
zimovet [89]3 years ago
8 0

Answer: the fourth stament, The theoretical yield is calculated from the amount of the limiting reactant present.


Justification:


1) Limiting reactant is the one that is in less proportion than the theoretical mole ratio.


2) Excess reactant is the one that is in greater proportion than the theoretical ratio.


3) For example, if you have the equation A + 2B → C, means that 1 mol of A react with 2 moles of B to yield 1 mol of C.


As per that equation, the theoretical mole ratio is 1 mol of A : 2 moles of B : 1 moles of C.


If the actual amounts of A and B were 2 and 4, respectively, they were in the same ratio as the theoretical ratio, and all of the both reactants could react.


But if you had, for example, 2 moles of reactant A and 2 moles of reactant B, only one of the moles of A could react with the 2 moles of B, so B would be the limiting reactant: the whole 2 moles of B would react, while only 1 mole of A would reactant, and 1 mole of A would be left over (A is in excess).


Therefore, you cannot use the 2 moles of A to calculate the theoretical yield (since only 1 mole reacted), instead you must use the limiting reactant (B), which is the one that reacts completely.

OLga [1]3 years ago
4 0

Answer:

the theoretical yeild is calculated from the amount of limiting reactant present

Explanation:

You might be interested in
I have 345mL of a 1.5M NaCl solution. If I boil the water until the volume of the solution is 250mL, what will the molarity of t
Karo-lina-s [1.5K]
Answer is
C. 2.07 M


For explanation

M1V1 = M2V2

M2 = (M1V1)/V2

M2 = (1.5M x 345ml) / 250 ml

:. M2 = 2.07 M
8 0
3 years ago
Color, hardness, solubility, mass, density, volume, and melting point are all examples of what type of property?
katovenus [111]

Physical properties.

7 0
3 years ago
Explain why an atom may go through nuclear decay but another won't? use examples to support your answer.
Marta_Voda [28]
Nuclear decay or radioactive decay is a process by which the nucleus of an unstable atom loses energy that is in terms of its mass. The radioactivity may cause an atom to lose whichever of its subatomic particles.

The explanation as why some of the atoms go through nuclear decay while others do not its because of the stability of some atoms. Atoms usually tend to follow octet rule, those which do not follow through this may experience the nuclear decay. 
3 0
3 years ago
An object has a mass of 18 grams and its volume is 2cm3 Calculate density:​
Natalka [10]

Answer:

9g/cm^3 is the density

Explanation:

P = m/V

P = 18/2 = 9g/cm^3

(This is more of a physics question than chem btw)

6 0
2 years ago
Read 2 more answers
Explain what you think a compound is
Kryger [21]

Answer:

composed of two or more parts, elements, or ingredients:

Explanation:

6 0
3 years ago
Other questions:
  • The combustion of 5.00 grams of c2h6(g), at constant pressure releases 259 kj of heat. what is δh for the reaction: 2c2h6(g) + 7
    12·1 answer
  • A student is making some observations of garlic. Which of these is NOT a qualitative observation?
    13·2 answers
  • In a controlled scientific experiment,a scientist
    5·2 answers
  • enzyme‑catalyzed, single‑substrate reaction E + S − ⇀ ↽ − ES ⟶ E + P . The model can be more readily understood when comparing t
    15·1 answer
  • A____is a prediction about the outcome of a test or experiment.
    13·2 answers
  • Which of the following is not a postulate of the kinetic-molecular theory?
    14·1 answer
  • B loves a <br> a ignores b<br> a loves c<br> c ignores a<br> c loves d<br> d is stupid
    12·2 answers
  • What poisonous gas is found in the exhaust fumes of car engines?
    10·2 answers
  • A ball was massed in a dish. The total mass was 15.6 grams. Treball was placed in a
    6·1 answer
  • Describe any five types of isomerism encounted in coordination compound​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!