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
atroni [7]
3 years ago
9

Subjective questions

Chemistry
1 answer:
BARSIC [14]3 years ago
8 0

Answer:

????????????????????????????????

You might be interested in
Acetic acid (CH3COOH) is a weak acid that partially dissociates in water. Given the reaction CH3COOH(aq) ↔ CH3COO−(aq) + H+(aq)
likoan [24]

Answer:

The correct answer is: 1.035 x 10⁻³ M

Explanation:

The dissociation equilibrium for acetic acid (CH₃COOH) is the following:

CH₃COOH(aq) ↔ CH₃COO⁻(aq) + H⁺(aq)  Kc = 1.8 x 10⁻⁵

The expression for the equilibrium constant (Kc) is the ratio of concentrations of products over reactants. The products are acetate ion (CH₃COO⁻) and hydrogen ion (H⁺) while the reactant is acetic acid (CH₃COOH):

Kc=\frac{[CH_{3} COO^{-} ][H^{+} ]}{[CH_{3} COOH]}= 1.8 x 10^{-5}

Given: [CH₃COOH]= 0.016 M and [CH₃COO⁻]= 0.92 M, we replace the concentrations in the equilibrium expression and we calculate [H⁺]:

\frac{(0.016 M)[H^{+} ]}{(0.92M)}= 1.8 x 10^{-5}

⇒[H⁺]= (1.8 x 10⁻⁵)(0.92 M)/(0.016 M)= 1.035 x 10⁻³ M

8 0
3 years ago
HELP THIS IS SCIENCE I HAVING TROUBLE
muminat

Answer:

1/2 of the way down

Explanation:

8 0
2 years ago
Read 2 more answers
What is the correct name for Na2CO3
KatRina [158]

Answer:

Sodium carbonate

Explanation:

6 0
3 years ago
Read 2 more answers
Which of the following is part of photosynthesis, but not part of cellular respiration?
Licemer1 [7]

Answer:

A

Explanation:

  • plants need sunlight to eat. so that's why

8 0
3 years ago
How were weapons and utensils fashioned during the Stone Age
Alenkasestr [34]
They were created with stone and wood and sometimes even bones, I hope this helped!
4 0
3 years ago
Other questions:
  • just type this into google and give me the answer 4 me plz!!!..........Describe Thomson's "plum pudding" model of the atom, and
    6·1 answer
  • If an element has more than one ionic charge, how is that piece of information represented in a chemical name?
    12·1 answer
  • Which of the following statements is true about nuclear power? A) It releases greenhouse gases. B) It does not produce wastes. C
    9·1 answer
  • Technology can be best defined as?
    8·2 answers
  • Consider the following reaction where Kc = 6.50×10-3 at 298 K: 2NOBr(g) 2NO(g) + Br2(g) A reaction mixture was found to contain
    10·1 answer
  • What happens to the DNA during interphase?
    5·2 answers
  • Write a balanced equation for the reaction of Al(H2O)63+ in aqueous KF. Include the physical states of each reactant and product
    14·1 answer
  • Which of the following is an example of acceleration? 88m/s, 15km/hr,14m/s East, 9.8 m/s^2 south
    12·1 answer
  • I NEED HELP THIS IS DUE TMR!
    14·1 answer
  • It takes 11. 2 kj of energy to raise the temperature of 145 g of benzene from 23. 0°c to 68. 0°c. what is the specific heat of b
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!