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
Pachacha [2.7K]
4 years ago
9

What will be the pH of 1.0 mol dm-3 of NH4OH, which is 1% dissociated

Chemistry
1 answer:
Zielflug [23.3K]4 years ago
5 0
Reaction is NH4OH <-> NH4+ OH- (note this is reversible)

Draw up an ICE table

Let x be equilibrium conc of OH- assume init conc of OH is 0M and init conc of NH4+ is 0M also. Init conc of NH4OH is 0.1M so equilibrium conc will be 0.1-x.

%dissociation = x/0.1-x * 100%

1 = 100x/0.1-x

0.1-x = 100x

101x = 0.1

x = 0.0009901

pOH = -log(0.0009901) = 3.00
You might be interested in
How can you determine the specific heat of a metal using a calorimeter? make a hypothesis
Sever21 [200]

Answer:

One can determine the specific heat of the metal through using the clarimeter, water, thermometer and using heat equations.

Explanation:

You can learn about heat effects and calorimetery through a simple experiment by boiling water and heating up the metal in it. Then, pour it into your calorimeter and the heat will flow from the metal to the water. The two equlibria will meet: the metal will loose heat into its surroundings (the water) and teh water will absorb the heat. The heat flow for the water is the same as it is for the metal, the only difference being is the negative sign indicating the loss of the heat of the metal.

In terms of theromdynamics, we can deteremine the heat flow for the metal becasue it would be equal to the mangnitued but opposite in direction. Thus, we can say that the specific heat of water qH2O = -qmetal.

4 0
3 years ago
If the unknown elements on the periodic table are "unknown" how did they end up in the periodic table in the first place? *think
mezya [45]

Answer:

The periodic table is a marvel of organization, with each column and each row showing all ... Scientists identified the rest of them in the first half of the 20th century. ... They created in their lab a synthetic, previously unknown element. ... The Berkeley scientists did this for weeks on end, and produced a tiny amount of curium.

Explanation:

8 0
4 years ago
What do melted ice cooling lava and boiling water have in common?
KIM [24]
They are all transioning in states of matter
7 0
4 years ago
What impact did political parties in Africa have on the African desire for independence?
Anvisha [2.4K]
They were important to help unify the Africans in their independence. How exactly were these political parties improved? Well, they were better organized, more unified in demands, had broad support, unwilling to compromise, willing to use any means necessary.
5 0
3 years ago
Read 2 more answers
Need some help on this. <br> 20 pts and brainliest
Kryger [21]
PEMDAS METHOD

Parenthesis
Exponent
Multiplication
Division
Addition
Subtraction
Methon
5 0
3 years ago
Other questions:
  • How many unpaired electrons are in the c 2 + ​ ion?
    10·1 answer
  • An atom x contains 14 protons, 13 electrons, and 12 neutrons, and atom y contains 14 protons, 14 electrons, and 12 neutrons. wha
    8·2 answers
  • 20 POINTS TO ANYONE WHO CAN ANSWER THIS QUESTION!!!!!!!!!!!!!!!!!!!!!!!
    5·2 answers
  • A hiker has packed a bag of chips as a snack. At the start of the hike the pressure was 1.5 atm and the temperature was 35*C. At
    15·1 answer
  • Assume the alveolar radii are 0.05 and 0.07 mm towards the end of exhalation. Knowing that air flows from high to low pressures,
    9·1 answer
  • Draw the structure of the compound C9H12 from its proton (1H) NMR spectrum below. First-order spin-spin splitting rules and equa
    8·2 answers
  • At constant temperature and pressure, the coefficients for gaseous species in a valences chemical reaction can be interpreted as
    6·1 answer
  • Match the words in the column to the appropriate blanks in the sentences.
    11·1 answer
  • PLEASE HELP ME I WILL LOVE U FOREVER
    12·1 answer
  • Dominic and Eva are using the same type of stopwatches to measure the time it takes for a chemical reaction to occur. They each
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!