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
Ivahew [28]
2 years ago
7

What is the molarity of an HCl solution if 43.6 mL of a 0.125 M NaOH solution are needed to titrate a 25.0 mL sample of the acid

according to the equation below (show your calculations)? NaOH(aq) + HCl(aq) → H2O(l) + NaCl(aq)
Chemistry
1 answer:
Sveta_85 [38]2 years ago
3 0

Answer: The molarity of an HCl solution is 0.218 M if 43.6 mL of a 0.125 M NaOH solution are needed to titrate a 25.0 mL sample of the acid.

Explanation:

Given: V_{1} = 43.6 mL,      M_{1} = 0.125 M

V_{2} = 25.0 mL,        M_{2} = ?

Formula used to calculate the concentration of acid is as follows.

M_{1}V_{1} = M_{2}V_{2}

Substitute the values into above formula.

M_{1}V_{1} = M_{2}V_{2}\\0.125 M \times 43.6 mL = M_{2} \times 25.0 mL\\M_{2} = 0.218 M

Thus, we can conclude that the molarity of an HCl solution is 0.218 M if 43.6 mL of a 0.125 M NaOH solution are needed to titrate a 25.0 mL sample of the acid.

You might be interested in
Part C<br> Number of molecules in 8.437x10-2 mol C6H6
N76 [4]

Answer:

There are 5.08\times 10^{22}\ \text{molecules of}\ C_6H_6  

Explanation:

In this problem, we need to find the number of molecules in 8.437\times 10^{-2} mol of C_6H_6.

The molar mass of C_6H_6 is 6\times 12+1\times 6=78\ g/mol

No of moles = mass/molar mass

We can find mass from above formula.

m=n\times M\\\\m=8.437\times 10^{-2}\ mol\times 78\ g/mol\\\\m=6.58\ g

Also,

No of moles = no of molecules/Avogadro number

N=n\times N_A\\\\N=8.437\times 10^{-2}\times 6.023\times 10^{23}\\\\N=5.08\times 10^{22}\ \text{molecules}

Hence, there are 5.08\times 10^{22}\ \text{molecules of}\ C_6H_6  

5 0
3 years ago
How many atoms of hydrogen combine with one carbon atom to form methane
bonufazy [111]

Answer:four hydrogen atoms

Explanation:

4 0
3 years ago
Wskaż substancję, która ma największą zawartość procentową węgla w cząsteczce:
MrRa [10]

Answer: C2H4

Explanation:

The percentage composition of ethanol ( C2H5OH ) consist of 52.2% Carbon, Hydrogen of 13.0 and 34.8% of Oxygen.

The percentage composition of ethane gas (C2H6) consist of 80.0% carbon and 20.0% hydrogen.

The composition of Ethylene Glycols i.e C2H4(OH)2 is Carbon of 39.7%, 9.7% hydrogen and 51.6% oxygen.

The percent composition of c2h4 is 86% carbon, and 14% hydrogen.

From the information given, the substance with the highest percentage of carbon is C2H4

7 0
3 years ago
6. A box measures 11.25 inches in length, 8.1 inches in width and 6.85 inches in height. What is the
denis23 [38]

Answer:

I'd say 624.2^3 inches.

Explanation:

3 0
2 years ago
Adjustment to environmental conditions is known as
alukav5142 [94]

Answer:

A.

Explanation:

Adjust = Adapt if that makes sense.

8 0
2 years ago
Read 2 more answers
Other questions:
  • Why is nonpoint source pollution potentially more harmful than point source pollution?
    7·2 answers
  • Can a molecular formula show the arrangement of atoms in a molecule? Is it true or false?
    6·1 answer
  • Why is thermal energy produced not generally usable to do work
    6·2 answers
  • True or false: The elements in a group of the periodic table have similar characteristics
    14·1 answer
  • How many moles are in 82 g of water?
    8·1 answer
  • Which statement about sound waves is true?
    6·1 answer
  • Give me lil reasoning so I know your not lying for points
    8·1 answer
  • Two oxygen atoms bond with one carbon atom to form carbon dioxide. Carbon dioxide is a(n):
    11·1 answer
  • Physical or Chemical change?
    13·1 answer
  • What is the % yield when 12g of Mg react with HCl to produce 0.2g of H2?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!