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
den301095 [7]
3 years ago
14

Which solution has the lowest pH? A. 1.0 M HNO2 B. 1.0 M CH3COOH C. 1.0 M HCOOH D. 1.0 M HNO3 E. 1.0 M HPO4–

Chemistry
2 answers:
Svetlanka [38]3 years ago
8 0
The stronger the acid the lower the pH, because pH = log { 1 / [H+]}. You can discard easily the options B and C because they are organic acid which are relatively weak. To compare properly the inorganic acids you should use a Ka or pKa table. You can predict that HPO4 (2-) is less strong because the third dissociation is weaker the first. So, you should only need to search for the Ka or pKa of HNO2 and HNO3. Every one who is familiar with the stronger acids knows that HNO3 is one of the strongest acid, stronger indeed than HNO2. So, the strongest acid of the list is HNO3 and it has the lowest pH. <span>Answer: option D. 1.0 M HNO3.</span>
lianna [129]3 years ago
7 0

Answer:

Answer: option D. 1.0 M HNO3.

Explanation:

#platolivesmatter

You might be interested in
At the equivalence point of a titration of the [H+] concentration is equal to:
icang [17]

B. At the equivalence point of a titration of the [H+] concentration is equal to 7.

<h3>What is equivalence point of a titration?</h3>

The equivalence point of a titration is a point in titration at which the amount of titrant added is just enough to completely neutralize the analyte solution.

At the equivalence point in an acid-base titration, moles of base equals moles of acid and the solution only contains salt and water.

At the equivalence point, equal amounts of H+ and OH- ions combines as shown below;

H⁺ + OH⁻  → H₂O

The pH of resulting solution is 7.0 (neutral).

Thus, the pH at the equivalence point for this titration will always be 7.0.

Learn more about equivalence point here: brainly.com/question/23502649

#SPJ1

5 0
2 years ago
If a neutral compound is composed of carbon and hydrogen and you know that it has exactly 2 carbons connected by a double bond,
Ivahew [28]

Answer:

B. 8

Explanation:

because I learned that in 6th

3 0
3 years ago
Calculate the oxidation state of the underlined elements of K2 Cr2 O7
Semenov [28]

Answer:

+4

Explanation:

In PbO2, oxygen exhibits an oxidation number of -2 (since it's not a peroxide or superoxide):

Let the oxidation number of Pb be x. Then, for the compound to be neutral, the oxidation numbers of all atoms should add up to zero.

⇒ x + (−2) + (−2) = 0

x = +4

So the oxidation no. of Pb is +4.

I hope this helps.

3 0
2 years ago
If an atom has a mass number of 23, which of the following is always true?
lesantik [10]
Atomic number is less than 11
8 0
3 years ago
Plz help well mark brainliest if correct!!
USPshnik [31]

Answer:

the hole in Earth was caused by a meteorite

6 0
2 years ago
Other questions:
  • 1. Concentrated HCl is 11.7M. What is the
    7·1 answer
  • When Ca+2 and O-2 form a compound what is the overall charge of the compound formed
    15·1 answer
  • Elements on the periodic table are arranged by increasing ?
    6·1 answer
  • Terbium-147 undergoes positron emission to become a stable atom. What is that stable atom?
    15·1 answer
  • What is sodium bicarbonate an example of? a buffer an acid a liquid a base
    7·1 answer
  • Calculate the pH of 500cm3 of 0.2mol/dm3 Ca(OH2), assume complete ionisation​
    8·1 answer
  • Explain why it is necessary to balance chemical equations in terms of maintaining equilibrium. How can you tell when a chemical
    15·1 answer
  • Which characteristic of a strong acid
    6·1 answer
  • PLEASE HELP ME!!! i have no idea how to answer these!
    6·1 answer
  • how much hydrogen will be released during the interaction of potassium weighing 8 grams with hydrochloric acid
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!