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
stealth61 [152]
3 years ago
13

Name the separation technique illustrated in the picture​

Chemistry
1 answer:
o-na [289]3 years ago
3 0
The picture isn’t included
You might be interested in
How many liters of 0.615 M NaOH will be needed to raise the pH of 0.385 L of 5.13 M sulfurous acid (H2SO3) to a pH of 6.247?
givi [52]

Answer:

Volume of NaOH required = 3.61 L

Explanation:

H2SO3 is a diprotic acid i.e. it will have two dissociation constants given as follows:

H2SO3\leftrightarrow H^{+}+HSO3^{-} --------(1)

where,  Ka1 = 1.5 x 10–2  or pKa1 = 1.824

HSO3^{-}\leftrightarrow H^{+}+SO3^{2-} --------(2)

where,  Ka2 = 1.0 x 10–7 or pKa2 = 7.000

The required pH = 6.247 which is beyond the first equivalence point but within the second equivalence point.

Step 1:

Based on equation(1), at the first eq point:

moles of H2SO3 = moles of NaOH

i.e. \ 5.13\  moles/L*0.385L = moles\  NaOH\\therefore, \ moles\  NaOH = 1.98\ moles\\V(NaOH)\ required = \frac{1.98\ moles}{0.615\ moles/L} =3.22L

Step 2:

For the second equivalence point setup an ICE table:

                  HSO3^{-}+OH^{-}\leftrightarrow H2O+SO3^{2-}

Initial           1.98                    ?                                       0

Change      -x                       -x                                       x

Equil           1.98-x                 ?-x                                    x

Here, ?-x =0 i.e. amount of OH- = x

Based on the Henderson buffer equation:

pH = pKa2 + log\frac{[SO3]^{2-} }{[HSO3]^{-} } \\6.247 = 7.00 + log\frac{x}{(1.98-x)} \\x=0.634 moles

Volume of NaOH required is:

\frac{0.634\ moles}{0.615 moles/L}=0.389L

Step 3:

Total volume of NaOH required = 3.22+0.389 =3.61 L

3 0
3 years ago
Describe the observation Robert Brown made.​
12345 [234]

Answer:

In 1827, Brown observed, using a microscope, that small particles ejected from pollen grains suspended in water executed a kind of continuous and jittery movement, this was named “Brownian motion”. ... This random movement of particles suspended in a fluid is now called after him.

Explanation:

HOPE this helps :)

3 0
3 years ago
Read 2 more answers
How does the written lewis structure for potassium chloride differ from that of hydrogen chloride?
labwork [276]
<span>Lewis structure of both is similar:

H : CI (hydrogen chloride)
</span>
<span>K : CI (potassium chloride)</span>
5 0
3 years ago
How many moles of O2 are required to react with 2.4 mol of H2 ?
Leokris [45]

Answer:

1.2 moles

Explanation:

this is the balanced equation for the reaction of oxygen (O2) and hydrogen (H2), usually we don't write the 1 in front of O2

2H₂ + 10₂ → 2H₂O

the molar ratio of hydrogen to oxygen is 2 : 1

we are trying to react with 2.4 mol of H2 so the moles of O2 is half the number of moles of H2 = 2.4 ÷ 2 = 1.2 mol

another way to think of it:

2H₂ + 10₂

2 : 1

2.4 mol : x mol

to get from 2 to 2.4 multiply by 1.2, so do the same to the other side

1 × 1.2 = 1.2 mol

8 0
2 years ago
What kind of bond is not formed by the differences in electronegativity
irakobra [83]
It's nonpolar covalent
8 0
3 years ago
Other questions:
  • What is the total gas pressure in a sealed flask that contains oxygen at a partial pressure of 0.35 atm and water vapor at a par
    6·1 answer
  • What is the boiling point of krypton and why
    15·1 answer
  • Which group or groups of atoms are the only atoms with f orbitals A. All atoms heavier than barium B. All atoms heavier than kry
    15·1 answer
  • Which of these is a ball stick model
    13·2 answers
  • Which makes up an ecosystem?
    10·1 answer
  • Why does table salt dissolve more rapidly than rock salt
    14·2 answers
  • Which statement best describes the process of nuclear fusion?
    13·1 answer
  • Plzzz help me plz I am timed!!
    14·2 answers
  • Complete the following statements of Dalton's atomic model: a) Elements are composed of minute, particles called atoms. b) Atoms
    12·1 answer
  • SEP Use Math In another experiment, a chemist combines 7.2 grams of carbon with 19.2 grams of oxygen to form a compound. Identif
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!