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
arsen [322]
3 years ago
13

1. Find the molarity of 2.39 g Lif in 450 mL of water

Chemistry
1 answer:
Andreas93 [3]3 years ago
6 0

Answer:

0.205M

Explanation:

Molarity is an unit of concentration used in chemistry defined as the ratio between moles of solute (In this case, LiF) and liters of solution.

To solve this question, we must find the moles of LiF and the liters of the solution:

<em>Moles LiF -Molar mass: 25.939g/mol-:</em>

2.39g * (1mol / 25.939g) = 0.0921moles

<em>Liters solution:</em>

450mL * (1L / 1000mL) = 0.450L

Molarity is:

0.0921 moles / 0.450L =

<h3>0.205M</h3>
You might be interested in
Please help me with number 12
ella [17]

Answer:

organisms in rain water and the number of organisms in pond water because the dependant variable never changes

Explanation:

because the dependant variable never changes

6 0
3 years ago
According to the law of conservation of energy which is always true
Lerok [7]
The sum of all energies involved in breaking and or forming chemical bonds within the reactants side of the reaction is equal to the sum of all energies involved in the formation and rearranging of atoms within the product side of the chemical reaction.

The total energies of reactants = the total energies of products.
8 0
3 years ago
C,H,O,+ 3HCI → C,HCl, + 3H20<br> right 5 possible mole ratios
Marina86 [1]

Answer:

Here's what I get  

Explanation:

I think this may be the equation you intended to write:

C₃H₅(OH)₃ + 3HCl ⟶ C₃H₅Cl₃ + 3H₂O

The mole ratios are the ratios of the coefficients in the balanced equation.

Here are some of the possible molar ratios.  

  1. C₃H₅(OH)₃:HCl        = 1:3
  2. C₃H₅(OH)₃:C₃H₅Cl₃ = 1:1
  3. C₃H₅(OH)₃:H₂O       = 1:3
  4.           HCl:C₃H₅Cl₃ = 3:1
  5.           HCl:H₂O       = 3:3
  6.    C₃H₅Cl₃:H₂O       = 1:3

4 0
3 years ago
Name three important qualities of water.
Paraphin [41]

Answer:

Water (H

2O) is a polar inorganic compound that is at room temperature a tasteless and odorless liquid, which is nearly colorless apart from an inherent hint of blue. It is by far the most studied chemical compound[18] and is described as the "universal solvent"[19] and the "solvent of life."[20] It is the most abundant substance on the surface of Earth[21] and the only common substance to exist as a solid, liquid, and gas on Earth's surface.[22] It is also the third most abundant molecule in the universe (behind molecular hydrogen and carbon monoxide).[21]

3 0
3 years ago
In the following experiments, identify the
Sonja [21]
The tire pressure
Independent variable
Increases as the temperature increases
Dependent variable
hope I helped!
6 0
3 years ago
Read 2 more answers
Other questions:
  • El teñido de una camiseta blanca con pintura es un cambio fisico o quimico
    12·1 answer
  • What is chemsity and what does it have to do with science
    11·1 answer
  • Why is butyl iodide preferred over butyl chloride in a williamson ether synthesis?
    14·1 answer
  • Which of the following is an example of a species changing over time. Choose all answers that are correct. A. A gardener notices
    15·1 answer
  • What is the edge length of a face-centered cubic unit cell made up of atoms having a radius of 144 pm?
    10·1 answer
  • Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl ( aq ) , as describe
    13·1 answer
  • Which of the following correctly describes the decomposition of aqueous NaNO3?
    6·2 answers
  • Scientific Notation and Significant Figures Problem:
    8·1 answer
  • A motorcyclist completes a journey at an average speed of 65 mph
    14·1 answer
  • What conditions would produce the highest pressure?​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!