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
solniwko [45]
2 years ago
14

Calculate the molarity of a solution consisting of 25.0 g of KOH in 3.00 L of solution.

Chemistry
1 answer:
melomori [17]2 years ago
5 0

Answer:

0.15M

Explanation:

The equation for molarity is M= n/L. Where "M" is Molarity, "n" is the number of moles of solute, and "L" is the total liters in solution.

You need to calculate the number of moles from the given grams. The molar mass of KOH is (39.098+ 16 +1.008)= 56.106g. To calculate the mols of KOH, \frac{25.0g}{1} × \frac{1 mol}{56.106g} = 0.44558... mol, you see that the grams unit cancel out leaving you with mol as the unit.

The volume is given in L already so no need to do any conversion. M= \frac{0.4558mol}{3.00L} = 0.1485M ≈ 0.15M

You might be interested in
What is the correct equilibrium constant expression for equation P2(g)
sertanlavr [38]

Answer:

k = [F2]² [PO]² / [P2] [F2O]²

Explanation:

In a chemical equilibrium, the equilibrium constant expression is written as the ratio between the molar concentration of the products over the molar concentration of the reactants. Each species powered to its reaction coefficient. For the equilibrium:

P2(g) + 2F2O(g) ⇄ 2PO(g) + 2F2(g)

The equilibrium constant, k, is:

k = [F2]² [PO]² / [P2] [F2O]²

6 0
3 years ago
Is there are a total of 7.3 x 10^29 atoms in a sample of glucose, C6H12O6(s),what amount in miles of glucose is in the sample?
Vadim26 [7]

(7.3 x 10^29 atoms) / (24 atoms/molecule) / (6.022 x 10^23 molecules/mol) =  

5.1 x 10^4 mol C6H12O6

4 0
3 years ago
What causes the Moon to be illuminated?
alexgriva [62]

Answer:

reflection

Explanation:

the moon reflects sunlight causing it to look brighter. the sun is not a medium as light doesn't require a. medium to travel. nor is a moon concave...

hope it helps

8 0
1 year ago
There are several reagents that can be used to effect addition to a double bond including: acid and water, oxymercuration–demerc
ExtremeBDS [4]

The answer & explanation for this question is given in the attachment below.

7 0
3 years ago
Read 2 more answers
Which of the following substances has the highest melting point?
Aleksandr [31]

Nonane (b) has the highest melting point.

-----------------------------

A caveat: I'm assuming that we're dealing with the straight-chain isomers of these alkanes (specifically pentane and nonane). The straight-chain isomer of pentane (<em>n</em>-pentane, CH3-[CH2]3-CH3) has a melting point of -129.8 °C; the straight-chain isomer of nonane (<em>n-</em>nonane, CH3-[CH2]7-CH3) has a melting point of -53.5 °C. The pattern holds as you go down (or up): The more carbon atoms, the higher the melting point. So, in decreasing order of melting points here, you'd have the following: nonane > pentane > butane > ethane.

However, one structural isomer of pentane, neopentane, has a melting point of -16.4 °C, which is <em>higher </em>that the melting point of <em>n</em>-nonane despite neopentane having the same molecular formula as its straight-chain isomer. Of course, you're not to blame for coming up with this question; this is just some extra info to keep in mind.

5 0
3 years ago
Other questions:
  • A mixture of nitrogen and neon gas is compressed from a volume of to a volume of , while the pressure is held constant at . Calc
    10·1 answer
  • I need help!!!! Plz help me with the above question
    15·1 answer
  • Benzene and toluene form ideal solutions. Consider a solution of benzene and toluene prepared at 25∘C. As suming that the mole f
    13·2 answers
  • Organic chemistry!!! Plz help
    5·1 answer
  • Find the number of moles in 1.00 x 1023 atoms of chromium.
    15·1 answer
  • A water treatment tablet contains 20.0 mg of tetraglycine hydroperiodide, 40.0% of which is available as soluble iodine. If two
    11·1 answer
  • Compare and contrast carbon dioxide and water.
    9·1 answer
  • The four structures that both prokaryotic and eukaryotic cells have are
    5·1 answer
  • Using the balanced reaction below, drag and drop the terms into the correct location to solve the following problem:
    7·1 answer
  • Explain the difference between mass and weight. Why is your weight on the Moon one-sixth that on Earth?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!