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
nikitadnepr [17]
4 years ago
13

A sample of 0.281 gg of an unknown monoprotic acid was dissolved in 25.0 mLmL of water and titrated with 0.0950 M NaOH NaOH. The

acid required 30.0 mLmL of base to reach the equivalence point.What is the molar mass of the acid?
Chemistry
1 answer:
tensa zangetsu [6.8K]4 years ago
5 0

Answer:

98.6 g/mol.

Explanation:

Equation of the reaction

HX + NaOH--> NaX + H2O

Number of moles = molar concentration × volume

= 0.095 × 0.03

= 0.00285 moles

By stoichiometry, 1 mole of HX reacted with 1 mole of NaOH. Therefore, number of moles of HX = 0.00285 moles.

Molar mass = mass ÷ number of moles

= 0.281 ÷ 0.00285

= 98.6 g/mol.

You might be interested in
Which of the following coefficients are needed to balance the combustion reaction of ethanol?
djyliett [7]
Answer is: d. 3,2,3.

Balanced chemical reaction: CH₃CH₂OH + 3O₂ → 2CO₂ + 3H₂O.
CH₃CH₂OH is ethanol.
O₂ is molecule of oxygen.
CO₂ is carbon(IV) oxide.
H₂O is water.
There are same number of atoms (oxygen, carbon and hydrogen) on both side of balanced chemical reaction:
2 atoms of carbon.
6 atoms of hydrogen.
7 atoms of oxygen.



5 0
3 years ago
Look at the diagram below.
Kazeer [188]

Answer:

3rd statment

Explanation:

ray 1 and 2 are same vertical line

5 0
3 years ago
Read 2 more answers
Fill in the following information for the element
e-lub [12.9K]

Answer:

Period: 6 block

Group: f block

Family: Lanthanides

5 0
3 years ago
Read 2 more answers
What is a chemical equation for the second ionization for lithium
Orlov [11]
The 2nd ionization energy is removing a 2nd electron from that resulting cation: 
<span>Li+ --> Li2+ + 1e- </span>
5 0
3 years ago
Select the reason why two molecules of benzaldehyde cannot react via the aldol condensation.
Lesechka [4]
Benzaldehyde or C6H5CHO would not undergo the aldol condensation because it does not contain an alpha-hydrogen in its structure. Aldol condensation is a type of reaction that happens between an enolate and an aldehyde or ketone leading to a alkene that has a planar structure. The lack of an alpha-hydrogen would not allow for it to undergo such process since it cannot enolize. Benzaldehyde undergoes a nucleophilic reaction known as Claisen-Schmidt condensation. It has somehow same mechanism of the aldol reaction however, the nucleophilic attack on the carbonyl happens even without the alpha-hydrogen but with an enolate that is from a ketone.
4 0
3 years ago
Other questions:
  • If you have 110.0 grams of an unknown compound that contains 12.3 grams of hydrogen, what is the percent by mass of hydrogen in
    11·2 answers
  • Please help with these asap
    13·1 answer
  • What planet has the highest ambient temperature?
    14·2 answers
  • Which particles can be stopped by human skin? ) alpha and beta particles only alpha particles alpha and gamma particles beta and
    15·2 answers
  • you drop a marble ball into a glass filled with water, which results ib 3.75 mL of water being displaced (spilled out). given th
    8·1 answer
  • Please help me write a portfolio. GIVING BRAINLIEST 50 POINTS
    15·2 answers
  • Two scientists are debating how to classify a new animal species that they have discovered. They observe that the animal is capa
    9·2 answers
  • Radiation from which type of decay has the most energy?
    8·2 answers
  • What is pressure in relation to a gas?
    9·1 answer
  • Please help thank you so much
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!