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
Jobisdone [24]
3 years ago
5

How many moles of AIC3 are there in 1,119.972 g ?

Chemistry
1 answer:
Alchen [17]3 years ago
6 0

Answer:

it is 8.40189 moles of AlCl3

mole = mass/molar mass

mole= 1119.972/133.34

You might be interested in
When 92.0 g of ethanol (c2h5oh are vaporized at its boiling point of 78.3°c, it requires 78.6 kj of energy. what is the approxim
Juli2301 [7.4K]

The solution would be like this for this specific problem:

<span>(78.6 kJ) / (92.0 g / (46.0684 g C2H5OH/mol)) = 39.4 kJ/mol </span>

<span>39.3 </span>

So the approximate molar heat of vaporization of ethanol in kJ/mol is 39.3.

I hope this answers your question.

7 0
3 years ago
Read 2 more answers
What is the rate constant of a first-order reaction that takes 5.50 minutes for the reactant concentration to drop to half of it
bulgar [2K]
For a first order reaction, the half life is inversely proportional to the rate constant. 
The formula is
half life = ln(2)/k = 0.693/k
where k is the rate constant

t = 5.50 minutes

k = ln(2)/5.50 = 0.126 min^-1

Your rate constant is 0.126 min^-1.

8 0
3 years ago
Which example is an endothermic process
Annette [7]

Answer:

Endothermic reactions is the result of heat being absorbed.

Explanation:

Melting ice cubes. Melting solid salts. Evaporating liquid water. Converting frost to water vapor (melting, boiling, and evaporation, in general, are endothermic processes.

(These are all examples of endothermic reactions.)

4 0
2 years ago
A red blood cell is placed into each of the following solutions. Indicate whether crenation, hemolysis, or neither will occur.
krok68 [10]

Answer:

Following are the responses to the given choices:

Explanation:

  • The RBC crenation is implied through NaCl by 2,67 percent(m/v) because that solution becomes hypertonic to RBC because of the water within the RBC that passes externally towards the outskirts. RBC thus shrinks.
  • 1.13% (m/v), because the low concentration or osmotic that all this solution shows is hypotonic regarding RBC because of the water which has reached the resulting swelling in RBC.
  • Distilled H2 implies hemolytic distillation.
  • Glucose is indicated by crenation at 8.69 percent (m/v).
  • 5.0% (m/v) glucose and 0.9% (m/v) (Crenation is indicated by NaCl.v)
3 0
2 years ago
At a certain temperature Kc = 9.0 for the equilibrium 24() ⇔ 22(). What is
Iteru [2.4K]

Answer:

.

Explanation:

.

5 0
3 years ago
Other questions:
  • What is the difference between a terrestrial planet and a gas giant
    9·1 answer
  • A 140.0-g sample of water at 25.0°c is mixed with 111.7 g of a certain metal at 100.0°c. after thermal equilibrium is establishe
    5·1 answer
  • Which statement correctly describes protons? They have no charge and are present in the nucleus of an atom. They have a negative
    14·2 answers
  • So2 (5.00 g) and co2 (5.00 g) are placed in a 750.0 ml container at 50.0 °c. the partial pressure of so2 in the container was __
    12·2 answers
  • Avogadro constant is 6.02 1023 (the number of atoms or molecules per mole). What how much charge is there in 1 mole of electrons
    13·1 answer
  • What organelle of a prokaryotic cell contains genetic information?
    11·1 answer
  • Write Fe salts (divalent Fe)?​<br><br>Pleasee help.... I will mark the answer with brainlist.
    10·1 answer
  • 20. Stoichiometry is based on
    10·2 answers
  • Identify the arrows that represent the process of cooling.<br> liquid<br> gas<br> solid
    8·1 answer
  • Express each quantity in regular notation along with its appropriate unit. a. 3.60 × 1 0 5 s 3.60×10 5 s b. 5.4 × 1 0 − 5 g / c
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!