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
LUCKY_DIMON [66]
2 years ago
8

An analytical chemist is titrating 181.2 mL of a 0.09000M solution of diethylamine ((CH) NH) with a 0.5400M solution of HNO3. Th

e pK, of diethylamine
is 2.89. Calculate the pH of the base solution after the chemist has added 26.9 ml of the HNO, solution to it.
9
00
Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of HNO3 solution added.
Round your answer to 2 decimal places.
E
al.
PH - 0
х
5
?
Chemistry
1 answer:
gavmur [86]2 years ago
8 0

Answer:

874 por que mi pen3 ne tu ocncha

Explanation:

mkmkm

You might be interested in
Help me. please help me.
igor_vitrenko [27]
B- 90 grams bc 45 mL times 2 equals 90
3 0
3 years ago
How much energy is required to raise the temperature of 3 kg of iron from 20° C to 25°C? Use the table below and this equation:
ElenaW [278]

The energy required to raise the temperature of 3 kg of iron from 20° C to 25°C is 6,750 J( Option B)

<u>Explanation:</u>

Given:

Specific Heat capacity of Iron= 0.450 J/ g °C

To Find:

Required Energy to raise the Temperature

Formula:

Amount of energy required is given by the formula,

Q = mC (ΔT)

Solution:

M = mass of the iron in g

So 3 kg = 3000 g

C = specific heat of iron = 0.450 J/ g °C [ from the given table]

ΔT = change in temperature = 25° C - 20°C = 5°C

Plugin the values, we will get,

Q = 3000 g ×  0.450 J/ g °C ×  5°C

 = 6,750 J

So the energy required is 6,750 J.

7 0
3 years ago
Read 2 more answers
PEOPLE WHO BUY GOODS AND SERVICES ARE OF GROUP OF DECSION MAKERS CALLED?
Bumek [7]
75% i think it is consumers
25% i think it is producer
7 0
3 years ago
Distinguish between an absorption spectrum and an emission spectrum. With which did Bohr work?
Marianna [84]

Answer:

Bohr used emission spectrum for its mono atomic model....

Explanation:

Emission Spectrum is produced when atoms are excited by energy. After excitation, they emit this energy in the form of different wavelengths according to the type of atom and produce a unique fingerprint of themselves called as it's emission spectrum.

Absorption Spectrum is a type of spectrum that is produces when photons of light are absorbed by electrons at one state. they jump to another state and may cause scattering. This produces a specific absorption spectrum for that specific atom.

4 0
3 years ago
HELP ME 99+ POINTS!!! Describe which renewable resources are used primarily to produce electricity and which renewable resources
NikAS [45]
<span>renewable resources are used primarily to produce electricity include wind and hydro-electric power. they require large mechanical structures e.g. wind turbine and water dam in order to generate electric energy. Therefore they are not appropriate for home use.

</span><span>renewable resources are readily used as heat sources for homes include solar-water heating system in which water is heated by sunlight and circulated around the house. Wood burning for heat can also be considered a renewable resource as long as the wood comes from a sustainable logging cycle.</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • Can anyone help me with nomenclature?​
    14·1 answer
  • What changes to landforms are caused by movements at transform boundaries
    8·2 answers
  • HELP ASAP!!!!! milk of magnesia has the chemical formula Mg(OH)2. what is the mass of 3.2 moles of milk of magnesia? the molar m
    8·2 answers
  • White phosphorus, P4, is prepared by fusing
    12·1 answer
  • How could you determine whether one of these two suspected compounds was identical to the unknown compound without using any for
    10·1 answer
  • Atmospheric pressure at sea level is equal to a column of 760 mm Hg. Oxygen makes up 21 percent of the atmosphere by volume. The
    11·1 answer
  • What is the unit of measurement used to express density
    8·1 answer
  • Half-life is always given in units of time
    11·1 answer
  • A block of aluminum occupies a volume of 0.015 L and has a mass of 40.5 g. What is its density
    6·1 answer
  • Which method would be best to separate a mixture of sugar and water? separation by density separation by particle size filtratio
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!