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
Nadusha1986 [10]
3 years ago
7

What is the hydrogen ion concentration of 0.450M solution of acetic acid (HC2H3O2), if the ionization constant(Ka) is 2.19 x 10-

5?
Chemistry
1 answer:
WITCHER [35]3 years ago
3 0

Answer:

3.02 Mm

Explanation:

You might be interested in
Help ASAAPPPPPPPPPP!!!!
Verdich [7]
Third choice is correct. 
6 0
3 years ago
Which of the following sets of empirical formula, molar mass, and molecular formula is correct?
lutik1710 [3]

Answer:

CH4N, 90g, C3H12N3

Explanation:

3 0
3 years ago
Draw the structure of tofacitinib with explicitly shown all carbon and hydogen atoms. identify the number of carbon atoms in tof
Andrew [12]

The structure of tofacitinib with explicit carbon and hydrogen is the first attached picture.

The number of carbon atoms in tofacitinib are 16.

The molecular formula of tofacitinib is C_{16}H_{20}N_{6}O.

The structure of tofacitinib with all the filled hydrogen atoms is the second attached picture.

3 0
3 years ago
an unknown sample with a mass of 50.0 grams changes from an initial temperature of 22.5°C to a final temperature of 32.4°C. It i
makvit [3.9K]

Answer:

Aluminum

Explanation:

7 0
3 years ago
PLEASE HELP ANYONE IM TOO DUMB TO ANSWER THESE :(
AlladinOne [14]

Answer:

The "2" applies only to the sodium, and sugar is a substance

Explanation:

The amount of atoms in an element are written using small letters after the element they refer to.

3 0
3 years ago
Other questions:
  • Photosynthesis happens in the _____
    10·2 answers
  • Which of the following is a benefit of having a standard measurement system that can be used by scientists worldwide?
    5·1 answer
  • You have just performed a laboratory activity where a lot of chemical waste was produced. all of the chemical wastes should be
    13·2 answers
  • Water is a very unique substance because it can exist in all three phases of matter (solid, liquid, gas) within the normal tempe
    6·2 answers
  • Based on table N of the reference tables what is the number of hours required for 42k (potassium -42) to undergo three half-life
    15·1 answer
  • What is plasma in chemistry​
    15·1 answer
  • What does the prefix trans-indicate?
    13·2 answers
  • A material resource is a renewable resource that is used to make objects.. true or false ?
    15·2 answers
  • A gas has a volume of 13.4 L at 17C. What is the volume of the gas at standard temperature?
    15·1 answer
  • If you are given time and distance, you can determine power if you know
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!