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
Ksenya-84 [330]
4 years ago
9

At pH= 8, which species is most likely to predominate in solution? pKa (-NH3+) = 9.9, pKa (-COOH) = 2.3

Chemistry
1 answer:
PtichkaEL [24]4 years ago
7 0

Answer:

The NH3 + with a PKa = 9.9

Explanation:

The Pka is a mathematical expression to express the dissociation grade of a substance in a solution, that means with a substance with a pKa small is a strong acid, and in this case since the solution pH is 8, that mean that the substance with high pKa ( lower acid strength)  will predominate in a pH of 8.

You might be interested in
Which element has the same number of energy levels as aluminum (Al) and the same number of valence electrons as calcium (Ca)
GREYUIT [131]

Answer:

magnesium (Mg)

Explanation:

8 0
3 years ago
Read 2 more answers
How does sand cause weathering?
Ivahew [28]
Sand doesn't directly cause weathering because sand is made via weathering. When rocks get weathered they become sand. But maybe when the sand and wind work together they might be able to weather some rocks
6 0
3 years ago
Read 2 more answers
Effects of warm tropical waters meeting with cool air.
Mars2501 [29]
A hurricane.. I believe
6 0
3 years ago
A 25.0 g sample of metal at
Nadya [2.5K]

The change in temperature of the metal is 6.1°C. Details about change in temperature can be found below.

<h3>How to calculate change in temperature?</h3>

The change in temperature of a substance can be calculated by subtracting the initial temperature of the substance from the final temperature.

According to this question, a 25.0 g sample of metal at 16.0 °C is warmed to 22.1 °C by 259J of energy.

This means that the change in temperature of the metal can be calculated as:

∆T = 22.1°C - 16°C

∆T = 6.1°C

Therefore, the change in temperature of the metal is 6.1°C.

Learn more about change in temperature at: brainly.com/question/19051558

#SPJ1

7 0
2 years ago
During a science lab investigating chemical reactions, you mix 15 grams of baking soda with 20 grams of vinegar into a container
Marizza181 [45]
55 as long as Ik I think it’s 55 but I’m Sorry if it’s wrong
7 0
3 years ago
Read 2 more answers
Other questions:
  • Help please someone
    8·1 answer
  • The amount of atomic particles released by a radioactive material in a specific time is determined by
    10·2 answers
  • A solution with a ph less than 7 is called a(n) _____________ and has a higher number of ___________ than a solution with a ph g
    14·1 answer
  • Binary ionic and binary molecular compounds have what two things that are similar in their composition
    6·1 answer
  • What has the same number of valence electrons in the outermost shell?
    5·1 answer
  • What are the 3 states of matter​
    9·2 answers
  • Washing machines use a large amount of water. A student suggested that old pairs of stained jeans which have to be washed more f
    5·2 answers
  • If 11.87 grams of sand (SiO2) were contained in the mixture, how many atoms of oxygen were in the mixture?
    6·1 answer
  • What ingredients are needed to turn the cake mix into cake batter​
    6·1 answer
  • propane (c3h8) is burned with air. for each case, obtain the balanced reaction equation for complete combustion a. with the theo
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!