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
Igoryamba
2 years ago
8

The pH at the equivalence point will be a. less than 7.00 b. equal to 7.00 Allohalineup of a sto quivalence point of a titration

of a weak acid with a strong base c. greater than 7.00 d. equal to the pk of the acid
Chemistry
1 answer:
True [87]2 years ago
8 0

Answer: c. greater than 7.00

Explanation: The equivalence point of a titration is when all the base is consumed by the acid. When a strong base and a strong acid react, the medium is neutralized because is produced water and salt (which won't suffer hydrolysis). How water's pH is 7, in this type of titration the pH of the equivalence point will be at pH=7. But on titration of a weak acid with a strong base, the reaction of the equivalence point produces water and the conjugate base of the acid. Because the acid is weak, their conjugate base will be strong and will suffer hydrolysis, producing hydroxyl ions, elevating the pH of the water and making it greater than 7.

You might be interested in
I know how to do electron configuration, but I think I’m doing the rest wrong. Answers and explanations would be much appreciate
Natasha_Volkova [10]

Your answers seem great so far, except for a tiny issue: With the ionic symbols, try to get into the habit of using "+", with metals, like sodium, and try to use the integer first. So, for example, a potassium ion would be K^+, while an oxide ion would be O^2-


Let's take aluminium as an example I'll work through:

Aluminium, with it's atomic number of 13, will have an electronic configuration of 1s2 2s2 2p6 1s2 2p1. So it would have 2, 8, 3 electrons in the first three energy levels, respectively.

Usually, if an elemental atom has a valence electron (highest energy level electron) count less than 4, it almost always will lose electrons. Since aluminium has 3, it will also lose the electrons.

It loses the 3 valence electrons, and so will end up with 10 electrons.

Since the atomic number also tells how many protons it has, we know that an aluminium atom has 13 protons, which doesn't change.

Since the size of the charges of a proton and an electron are the same, with protons being positive and the electrons being negative, an aluminium ion would have a charge of +3, and the Ionic symbol would be Al^3+



Hope I helped! xx


4 0
3 years ago
A student reports the following measurements for a set of pennies: 102.0mL, 91.0 g. What is the density of the pennies.
zysi [14]

Answer:

V = 102.0 ml

m = 91.0 ml

density = ...?

density = m / V

= 91.0 / 102.0

= 0.89215 g/ml

7 0
2 years ago
When light rays appear to be coming from behind a mirror, what type of image has been formed?
Setler79 [48]
Plane is the right answer I thinkkkkk
4 0
2 years ago
Read 2 more answers
Which statement about spontaneous and nonspontaneous processes is correct? Spontaneous processes are favored by a decrease in H,
Marina86 [1]
I believe your answer would be the first one

hope this helps
7 0
3 years ago
Read 2 more answers
PLEASE HELP!!!!
shtirl [24]
1) d

2) b because the independent variable is the thing you change/control in an experiment

3) c because the dependent variable is the thing being measured in an experiment

4)hmm it might be d, as c and a are both correct as different sized feeders would make it an unfair test and different types of food would as well

5) c

6) a

7) b obviously because if he activated them at different times then the ones activated last would have an advantage

6 0
3 years ago
Other questions:
  • From t = 0.0 s to t = 4.0 s, what distance does the particle move?
    14·1 answer
  • Which equation best expresses the relationship between pressure and volume for gas?
    8·2 answers
  • X2O3 contain 32% of oxygen by mass , find the value of x.
    9·1 answer
  • D. The total amount of energy stayed the same because being warmer or colder does not affect the amount of energy objects have.
    12·1 answer
  • How many millimeters are there in 5.12E5 kilometers?
    10·1 answer
  • How are transition metals named in metal compounds?
    12·1 answer
  • Someone please help?!?
    8·1 answer
  • Solid lead(II) sulfide reacts with aqueous hydrochloric acid to form solid lead(II) chloride and dihydrogen sulfide gas. Express
    8·1 answer
  • What is a chemical change?
    6·1 answer
  • The circumference of a circle is 31.4 centimeters. What is the circle's radius?<br> Use 3.14 for ​.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!