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
Anna71 [15]
1 year ago
5

A 100. 0 ml sample of 0. 10 m nh3 is titrated with 0. 10 m hno3. Determine the ph of the solution after the addition of 100. 0 m

l of hno3. The kb of nh3 is 1. 8 × 10-5.
Chemistry
1 answer:
DerKrebs [107]1 year ago
8 0

The pH of the solution after the addition of 100. 0 ml of HNO3. The kb of NH3 is 1. 8 × 10-5. So, pH is 10.9 basic .

This neutralization occurs as the acid is added to the base:

NH3(aq)+ HNO3(aq)= NH4NO3(aq)+ H2O(l)

The initial moles of NH3present is given by,

nNH3= c×v= 0.10× 100/1000= 0.01m

The number of moles of

HNO3 added is given by:

nHNO3= c×v= 0.10× 100/1000= 0.001

It is clear from the equation that the acid and base react in a 1:1 molar ratio. So, the no. moles of NH3remaining will be 0.01 - 0.001= 0.009

The total volume is now

100.0+100.0= 200.0x cm3

The concentration of NH3 is given by,

[NH3]= c/v= 0.001/200/1000= 0.05x mol/l .

pOH= 12 (pKb− logb)

where b is the base's concentration.

Given that there is little dissociation, we can roughly compare this to the starting concentration.

pKb= −logKb= −log(1.8×10−5)= 4.744

pOH= 3.056

At 25∘xC, we know that, pH+ pOH=14

pH= 14− 3.056= 10.9

To know more about Equilbrium, visit-brainly.com/question/14366127

#SPJ4

You might be interested in
What is the source of most of the salt in the oceans?
andrew11 [14]
Rivers and streams though that’s not the wording I would use
4 0
2 years ago
Compozitia procentuala a NaCl
Anon25 [30]

formează o rețea ionică de atomi de sodiu și clor
3 0
2 years ago
If a object started moving have did it’s velocity change?
Otrada [13]

Answer:

the velocity did change

Explanation:

velocity is the rate of change of its position with respect to a frame of reference.

3 0
3 years ago
Phase changes occurs in which of the following<br><br>mixing paint <br>boiling water<br>a suspension
Misha Larkins [42]

Boiling water. A phase change occurs when water boils.

The three common phases are <em>solid</em>, <em>liquid</em>, and <em>gas</em>. A <em>phase change</em> happens when one phase changes into different phase without a change in chemical composition.

When water boils, the liquid phase becomes a gas (water vapour or steam). The water does not change its chemical composition be each phase consists of water. Thus, boiling water involves a phase change.

Mixing paint does <em>not</em> involve a phase change because it stays a liquid during all stages of the mixing.

A suspension consists of two phases, but the phases do not change into other phases.


8 0
2 years ago
Does his model correctly show why the properties of the ending substances are different from the properties of the starting subs
topjm [15]

Answer:

Samira's model is incorrect because not all atoms are accounted for

Explanation:

The image of Samira's model has been attached to this answer to enhance the explanation.

What is depicted in that model is rightly regarded as a chemical change. In a chemical change atoms of substances are rearranged as new substances are formed.

However, all atoms in the products must also be found in at least one of the reactants. In this case we have an atom in one of the products that is not accounted for. Hence the model is incorrect.

6 0
2 years ago
Other questions:
  • A rock weighing 2 newtons was lifted 3 meters. how much work was done
    6·1 answer
  • When is the small size of gas particles taken into account?
    9·1 answer
  • Which element at stp is a liquid that conducts electricity well?
    15·1 answer
  • Redox reaction definition
    5·1 answer
  • What is the most useful tool used by chemist?
    8·1 answer
  • A compound contains 16.7 g of iridium and 10.3 g of selenium, what is its empirical formula?
    11·1 answer
  • List the metric ladder from largest to smallest.
    7·1 answer
  • How is cellular rep presentation the reverse of photosynthesis
    13·1 answer
  • Which sentence best describes why MnSO4→MnO+SO3 is not a synthesis reaction?
    10·1 answer
  • An atom represented by X forms a compound with
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!