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
VMariaS [17]
3 years ago
9

A chemistry student weighs out 0.154 g of chloroacetic acid (HCH2CICO2) into a 250. mL volumetric flask and dilutes to the mark

with distilled water. He plans to titrate the acid with 0.1400 M NaOH solution. Calculate the volume of NaOH solution the student will need to add to reach the equivalence point.
Chemistry
1 answer:
erastovalidia [21]3 years ago
7 0

Answer:

11.6 mL of 0.1400 M of NaOH is required to reach equivalence point.

Explanation:

Chloroacetic acid is an monoprotic acid.

Neutralization reaction: ClCH_{2}COOH+NaOH\rightleftharpoons ClCH_{2}COONa+H_{2}O

So, 1 mol of chloroacetic acid is neutralized by 1 mol of NaOH.

Molar mass of chloroacetic acid = 94.5 g/mol

So, 0.154 g of chloroacetic acid = \frac{0.154}{94.5} moles of chloroacetic acid

                                                     = 0.00163 moles of chloroacetic acid

Lets assume V mL of 0.1400 M of NaOH is required to reach equivalence point.

So, number of moles of NaOH needed to reach equivalence point

      = \frac{0.1400\times V}{1000} moles

So, \frac{0.1400\times V}{1000}=0.00163

or, V = 11.6

Hence, 11.6 mL of 0.1400 M of NaOH is required to reach equivalence point.

You might be interested in
What are the 3 primary consumers and what are the 3 secondary consumers
goldenfox [79]
Primary:
Grasshopper
Mouse
Grass

Secondary:
Hawk
Snake
Coyote 
8 0
3 years ago
Simple distillation is best used to separate two liquids that have boiling points that differ by
emmasim [6.3K]
The boiling points need to differ by 50 degrees to enable their complete separation ie of two different liquids. The separation occurs by first evaporation of one of the liquids and then its condensation and collection. It is a physical process not a chemical one.
6 0
3 years ago
How many atoms of oxygen are represented in 3Fe(NO3)2?
nexus9112 [7]
There are 18. In each molecule of Fe(NO3)2 there are 6 oxygen atoms because you have 2 nitrate (NO3) components which each contain 3 oxygen atoms. 2 x 3 = 6. Because you have 3 molecules of Fe(NO3)2, you need to multiply 6 by 3, which gives you 18 oxygen atoms.
4 0
3 years ago
Read 2 more answers
Classify each substance as a strong acid, strong base, weak acid, or weak base. drag each item into the appropriate bin.
Zepler [3.9K]
Since you forgot to include the choices for classification, I would just define each of these and tell you the hints that would help you classify them.

Among these acids and bases, its is the strong acids and strong bases that are easily classified. You should note that there are only 7 strong acids existing. All the rest are weak acids. These 7 acids are: HCl, HBr, HI, HClO₃, HClO₄, HNO₃ and H₂SO₄. On the other hand, there are only 8 strong bases; the rest are weak bases. These are the hydroxides of the Group ! and !! metals: LiOH, NaOH, KOH, RbOH, CsOH, Ca(OH)₂, Sr(OH)₂, and Br(OH)₂.

For the weak acids and weak bases, just remember the definitions of Arrhenius, Lewis and Bronsted-Lowry. A weak base are those compounds that accept H⁺ protons, produce OH⁻ ions when solvated and an electron donor. A weak acid are those compounds that donate H⁺ protons, produce H⁺ ions when solvated and an electron acceptor.
6 0
3 years ago
When a scientific investigation runs for several years, which is most likely true?
Bingel [31]

Answer:

1. Many different hypotheses will be tested.

Explanation:

Scientists test every hypothesis they make for their investigation, before moving onto bigger conclusions.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Name two ways the archaea differ from bacteria
    8·1 answer
  • What is the difference between fusion and melting?
    10·1 answer
  • Which one of the following reactions would produce t-butyl methyl ether in high yield?
    9·1 answer
  • What is a base? chemistry
    12·2 answers
  • What is the density of a substance with a mass of 1.8 kg and a volume of 0.2 L?
    10·1 answer
  • What do you think will happen if you pinch your arm after you stub your toe?
    12·2 answers
  • Which is true about models in science?
    15·2 answers
  • The half reaction of an oxidation-reduction shows that iron gains electrons. What does this electron gain mean or iron?
    8·1 answer
  • A student is interested in resource recovery through composting. Which field
    11·1 answer
  • What is 1+1=?and what is 2+2=?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!