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
FromTheMoon [43]
2 years ago
14

How many moles of hydrochloric acid are present in 62.2 mL of 4.54 M HCl solution

Chemistry
1 answer:
stiks02 [169]2 years ago
4 0

Moles of HCl = 0.282

<h3>Further explanation</h3>

Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution

\large \boxed {\bold {M ~ = ~ \dfrac {n} {V}}}

Where

M = Molarity

n = number of moles of solute

V = Volume of solution

The volume of HCl=62.2 ml=0.0622 L

The molarity of HCl = 4.54 M

Then moles of HCl :

\tt n=M\times V\\\\n=4.54\times 0.0622\\\\n=0.282~moles

You might be interested in
What is the pH of a 0.0042 M hydrochloric acid solution?
babymother [125]

Answer:

E) 2.38

Explanation:

The pH of any solution , helps to determine the acidic strength of the solution ,

i.e. ,

  • Lower the value of pH , higher is its acidic strength

and ,

  • Higher the value of pH , lower is its acidic strength .

pH is given as the negative log of the concentration of H⁺ ions ,

hence ,

pH = - log H⁺

From the question ,

the concentration of the solution is 0.0042 M , and being it a strong acid , dissociates completely to its respective ions ,

Therefore , the concentration of H⁺ = 0.0042 M .

Hence , using the above equation , the value of pH can be calculated as follows -

pH = - log H⁺

pH = - log ( 0.0042 M )

pH =  2.38 .

4 0
3 years ago
What do you think happens to the bonds between atoms when substances melt?
Eduardwww [97]

Answer:

As a substance melts, and goes from a solid to a liquid state, the kinetic energy of the molecules increases, and the molecules move faster, and they separate further and further away from each other.  The intermolecluar forces holding the molecules together become weaker.  This is why a liquid can take fill the shape of its container, whereas a solid has a fixed shape.

Explanation:

take your notes man

6 0
2 years ago
1. Draw a wedge/dash structure for trans-1,2-dimethylcyclohexane.
Angelina_Jolie [31]

Answer:

The structure with the ring flipped is the most stable

Explanation:

We have the  trans 1,2 - dimethylcyclohexane. With the wedge/dash structure we could not figure is this form is stable (If we do a comparison with the cis structure). But when we do a chair structure and ring flipped structure, this is easier to look.

The picture attached shows the structures, they are labeled as 1, 2 and 3, according to this problem.

In the chair structure, according to the picture below, you can see that both methyls are heading in the axial positions of the ring (One facing upward and the other downward). This is pretty stable, however, when the methyls are in those positions, the methyl position 1, can undergoes an 1,3 diaxial interactions with the hydrogens atoms (They are not drawn, but still are there), so this interaction makes this structure a little less stable that it can be.

On the other side, the ring flipped structure, we can see that both methyls are in the equatorials positions of the ring, and in these positions, it can avoid the 1,4 diaxial interactions with the hydrogens atoms, making this structure the most stable structure.

Hope this helps

6 0
3 years ago
If you are mixing a solution in a spray bottle with 15 ounces of water, how much chlorine do you need to add for the correct rat
Wittaler [7]
15 ounces so you can make it even
7 0
3 years ago
How are theres over 2,500 different minerals why?
SOVA2 [1]
A mineral occurs naturally, meaning that even though there are artificial substances that might be described as mineral-like they are not minerals
5 0
2 years ago
Other questions:
  • What is the source of electrons for the reaction center of photosystem ii in photosynthesis?
    13·1 answer
  • What is the balanced equation when aluminum reacts with copper (ii) sulfate in a single displacement reaction?
    9·1 answer
  • A dog has a mass of 19 kg. What is the mass of the dog in grams,expressed in scientific notation
    6·2 answers
  • Consider the total ionic equation below.
    14·2 answers
  • A _______ is formed when tectonic plates collide.
    8·1 answer
  • No copying from google<br><br> what is a penumbra solar eclipse?
    14·1 answer
  • Biochemistry which studies the chemical composition, structure, and the reaction of compounds found in non-living organisms.
    5·2 answers
  • What is the definition of an Isomer?
    12·2 answers
  • The number of protons + number of neutrons is<br> equal to the
    7·1 answer
  • Global warming is an ongoing issue for debate. True or False? Question 2 options: True False
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!