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
___ is the force on a dropped ball
poizon [28]

Answer:

gravity

Explanation:

the force is gravity that pulls the ball downward

4 0
3 years ago
Read 2 more answers
Why does the temperature remain constant during melting till all the ice has melted?
GenaCL600 [577]

All the energy goes into melting the ice. Ice and water are <em>at equilibrium</em> during melting, so the temperature does not change.

Once all the ice has melted to water, the temperature will rise.

4 0
3 years ago
How do the hazards from a quiet eruption differ from those of an explosive eruption?
vova2212 [387]
<span>Hazards from huge explosive eruptions comprise extensive ash-falls with small glass particles in it, pyroclastic flows (combinations of hot gases and pumice chunks), and immense lahars which are volcanic mud flows which can even include debris. These put people within the area in danger. Nearby properties get damaged as well within a circumference of tens to hundreds of miles away from the volcano. These eruptions can extensively cause a change to the global climate too. Hazards from quiet eruptions include lava flows which contain exploding fires and creating gas clouds which are rich in chlorine where lava pours into the sea. This can cause damage to wildlife and sea creatures.</span>
4 0
3 years ago
What quantity of copper is deposited by the same quantity of electricity that deposited 9g of aluminum
klio [65]

Answer:

Mass of copper deposited = 31.75 g

Explanation:

According to Faraday's second law of electrolysis, when the same quantity of electricity is passed through different electrolytes, the relative number of moles of the elements deposited are inversely proportional to the charges on the ions of the elements.

From this law, it can be seen that the higher the charge, the lower the number of moles of a given element deposited.

Number of moles of aluminium in 9 g of aluminium = mass / molar mass

Molar mass of aluminium = 27 g

Number of moles of aluminium = 9/27 = 1/3 moles

Charge on aluminium ion = +3

3 moles of electrons will discharge 1 mole of aluminium,

1 mole of electrons will discharge 1/3 moles of aluminium

Number of moles of electrons involved = 1 mole of electrons

Charge on copper ion = +2

1 mole of electrons will discharge 1/2 moles of copper.

Mass of 1/2 moles of copper = number of moles × molar mass of copper

Molar mass of copper = 63.5 g

Mass of copper deposited = 1/2 × 63.5 = 31.75 g

3 0
3 years ago
I need all these im not in the mood for it toddayyy
fomenos

Answer:

Me too

Explanation:

7 0
3 years ago
Other questions:
  • Aspirin (C9H8O4) is synthesized by reacting salicylic acid (C7H6O3) with acetic anhydride (C4H6O3). The balanced equation isC7H6
    15·1 answer
  • Which statement accurately describes why air pressure decreases as altitude increases? As you increase altitude the temperature
    7·1 answer
  • A gas is heated from 263.0 K to 298.0 K and the volume is increased from 24.0 liters to 35.0 liters by moving a large piston wit
    7·1 answer
  • Electron affinity is the measure of the attraction of an electron toward an isolated gaseous atom. When an electron is added to
    15·1 answer
  • Which change would result in a stronger electromagnet?
    7·2 answers
  • Please show all work for full credit.
    9·1 answer
  • :X:<br> The image represents a(n)
    14·1 answer
  • The area that includes everything between the cell membrane and the nucleus of a cell is called the ___________.
    5·2 answers
  • Which of the following describes how further studies supported the work done by Ernest Rutherford?
    9·1 answer
  • Calculate the density of oxygen, O2 , under each of the following conditions:
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!