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
nirvana33 [79]
3 years ago
10

Please answer asap need by Wednesday morning

Chemistry
1 answer:
Nina [5.8K]3 years ago
3 0

Answer:

5.555.

Explanation:

∵ pH = - log[H⁺],

<em>[H⁺] for weak acids = √Ka.C.</em>

Ka for CH₃COOH = 1.74 x 10⁻⁵, C = 0.16 M.

∴ [H⁺] = √Ka.C = √(1.74 x 10⁻⁵)(0.16 M) = 2.784 x 10⁻⁶ M.

∴ pH = - log[H⁺] = - log(2.784 x 10⁻⁶ M) = 5.555.

You might be interested in
When determining an elements identify, what is the most important subatomic part to look at?
ludmilkaskok [199]
When identifying an element the most important subatomic particle to look at is the proton because this is the number that the periodic table is organized by...
For example the element
Hydrogen has 1 proton and it is listed as number on the periodic table
8 0
3 years ago
Consider this reaction mechanism:
tester [92]

Answer:

c)Mo(CO)6 + P(CH3)3  Mo(CO)5P(CH3)3 + CO

-cause i took the test on engenuity

8 0
3 years ago
If 27 ml of 6.0 m h2so4 was spilled, what is the minimum mass of nahco3 that must be added to the spill to neutralize the acid?
katrin [286]

The minimum mass of NaHCO3 that  must be added to the spill to neutralize the acid is 27.216 grams


<h3>calculation </h3>

write the balanced chemical equation

2NaHCO3 +H2SO4 → Na2SO4  +2H2O +2CO2

find the moles of H2SO4 = molarity x volume in liters

volume in liters =  27/1000=0.027 l

moles is therefore= 0.027 x6=0.162 moles

by use of mole ratio of  NaHCO3: H2SO4  which is 2:1 the moles of NaHCO3=0.162 x2=0.324 moles


mass of NaHCO3= moles of NaHCO3 x molar mass of NaHCO3(84g/mol)

= 84g/mol x 0.324=27.216 grams

8 0
4 years ago
Read 2 more answers
A fuel-air mixture is placed in a cylinder fitted with a piston. The original volume is 0.310-L. When the mixture is ignited, ga
Soloha48 [4]

Answer:

V_2=11.35L

Explanation:

Knowing that the system is at constant pressure, the energy balance is:

\Delta H=Q-W

If all the energy (enthalpy of combustion) is transformed into work:

\Delta H=-W

Work:

W=-\int_{V1}^{V2}P*dV

W=-P*(V_2-V_1)

\Delta H=P*(V_2-V_1)

Calculating:

935J=84659 Pa*(V_2-3.1*10^{-4}m^3)

V_2=0.0113 m^3=11.35L

3 0
3 years ago
A hot air balloon is filled with of an ideal gas on a cool morning ( The air is heated to What is the volume of the air in the b
Leto [7]

Answer:

Charles's law states that V1 / T1 = V2 / T2. However, you must make sure that T is in Kelvin, not C.

1.19E6 / (11 + 273) = V2 / (113 + 273)

V2 = 1.62E6

Explanation:

Gases expand when heated if the container they are in is flexible. When the gas is heated its molecules move faster and faster. The collisions of the gas particles with the flexible container wall expand.

6 0
4 years ago
Other questions:
  • If 7.400 g of C6H6 is burned and the heat produced from the burning is added to 5691 g of water at 21 °C, what is the final temp
    15·1 answer
  • What are use of ammonical liquor​
    13·1 answer
  • Give the ion notation for an atom with 34 protons and 36 electrons
    6·1 answer
  • A sample of a gas has a pressure of 248mm Hg when the volume is 1.05L. What is the pressure of the gas when the volume is 3.98L?
    7·2 answers
  • Phase Change Diagram
    13·1 answer
  • The photo shows a frozen juice pop on a hot day.
    12·2 answers
  • What is the best example of energy is transferred object to object
    11·1 answer
  • If the [H3O+] of a solution is less than the [OH-], what can be said about the solution?
    12·2 answers
  • Which of the following would increase the pressure of a gas?
    12·1 answer
  • Which missing item would complete this alpha decay reaction?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!