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
alexandr402 [8]
3 years ago
7

3. Determine the pH of each of the following solutions. (Hint: See Sample Problem B.) a. 1.0 x 10-2 M HCI c. 1.0 x 10-MHI b. 1.0

x 10-3 M HNO3 d. 1.0 x 10-M HB​
Chemistry
1 answer:
densk [106]3 years ago
3 0

Answer:

a. pH = 2 b. pH = 3 c. pH = 1 d. Unanswerable

Explanation:

pH = -log[H+] OR pH = -log{H3O+]

                    and inversely

pOH = -log[OH-]

1. Determine what substance you are working with, (acid/base)

2. Determine whether or not that acid or base is strong or weak.

a. 1.0 x 10^-2M HCl

HCl is a strong acid, therefore it will dissociate completely into H+ and Cl- with all ions going to the H+, therefore, the concentration of HCl and concentration of H+ are going to be equal, meaning we simply take the negative logarithm of the concentration of HCl and that would equal pH

pH = -log[H+]

pH = -log(1.0x10^-2)

pH = 2

b. 1.0 x 10^-3M HNO3

HNO3 like part a, is a strong acid, therefore it would simply require you to take the negative logarithm of the concentration of the compound itself, to find its pH.

pH = -log[H+]

pH = -log(1.0 x 10^-3)

pH = 3

c. 1.0 x 10^-1M HI

Like the previous parts, HI is a strong acid

pH = -log[H+]

pH = -log(0.10)

pH = 1

d. HB isn't an element, nor is it a compound so that would be unanswerable.

You might be interested in
The average kinetic energy of the atoms that make up a substance which is changing from a liquid to a solid is _____________.dec
Zepler [3.9K]
Here is your answer:

Your answer is A decreasing.

Reason: That's because when your turning into a solid your not moving and kinetic energy is the around of movement an object is moving.

Your answer is A.
8 0
3 years ago
Is baking soda reacting to vinegar a physical or chemical change
ArbitrLikvidat [17]

Answer:

I'd probably say both. It physically changes because it creates CO2. It chemically changes because they are basically working together for the atoms to rearrange and creates a chemical reaction.

Explanation:

Hope this helps! Pls give brainliest!

4 0
2 years ago
What is produced during the replacement reaction of Cu(NO3)2 and Zn?
PolarNik [594]
During the displacement reaction , copper (cu) and zinc nitrate (<span> 2 ZnNo<span>3 )</span></span> are the products . hope this helps :) 
8 0
3 years ago
In witch step did a chemical change most likely occur
11Alexandr11 [23.1K]

Answer:

step 2

hope this helps!

please mark as brainiest<3

6 0
2 years ago
Air resistance depends upon _____.
Sedaia [141]

Answer:

ye its b

Explanation:

6 0
3 years ago
Other questions:
  • A compound, like water, can be broken down (decomposed) by:
    15·2 answers
  • Which food is not a heterogeneous mixture?
    9·2 answers
  • Which characteristic applies to intrusive igneous rocks?
    5·2 answers
  • Help plz need answers asap
    9·2 answers
  • At 700 K, CCl4 decomposes to carbon and chlorine. The Kp value for the decomposition is 0.76. Find the starting pressure of CCl4
    12·2 answers
  • Explain how a wedge changes an input force
    15·1 answer
  • Which atom is most likely to attract electrons in a bond?<br><br> A) K<br> B) Na<br> C) S<br> D) Se
    14·1 answer
  • The table below shows various solutions with their pH values. Use it to answer the questions that
    6·1 answer
  • 1. Find the molarity of 2.39 g Lif in 450 mL of water
    13·1 answer
  • A ____ taste is a characteristic property of all acids in aqueous solution.​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!