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
nlexa [21]
2 years ago
14

Consider a buffer made by adding 132.8 g of nac₇h₅o₂ to 300.0 ml of 2.31 m hc₇h₅o₂ (ka = 6.3 x 10⁻⁵) what is the ph of the buffe

r after 0.750 mol of h⁺ have been added?
SAT
1 answer:
sertanlavr [38]2 years ago
7 0

The ph of the buffer solution given after 0.750 mol of H⁺ have been added is; 4.34

<h3>What is the PH of the Buffer?</h3>

pKa = -log(Ka) = 4.20

[A⁻] = [NaC₇H₅O₂]

[HA] = [HC₇H₅O₂]

Concentration of NaC₇H₅O₂ in the preferred buffer solution is;

[132.8g/(144.11 g/mol * 300 mol)] * 1000 mL/1 L = 3.07 M

Formula for the PH here is;

pH = pKa + log [A⁻/HA]

Thus;

pH = -log(6.3 x 10⁻⁵) + log [3.07/2.31]

pH = 4.34

Read more about bufffer PH at; brainly.com/question/22390063

You might be interested in
Which assessment finding is most important as labor progresses
Elena L [17]

The assessment finding which is most important as labor progresses is the uterus relaxing completely between contractions during pregnancy.

<h3>What is Uterus?</h3>

This is also referred to as womb and is the location where the fetus grows and develops during pregnancy. The uterus is also described as a hollow organ with muscular walls and also performs other functions as menstruation, and as a secondary sex organ in females.

During labor, the uterus undergoes some form of contraction movements which leads to its relaxing so as to enable the fetus pass to the birth canal. It is then expunged to the vagina where the health professional can take safe delivery of the baby.

This is the therefore the main reason why this assessment is very important during labor.

Read more about Labor here brainly.com/question/1259611

#SPJ1

6 0
2 years ago
More than a hundred thousand ______ earthquakes occur each year
Anvisha [2.4K]
More than 12,000-14,000 earthquakes occur each year. Hope it helps. :D
6 0
3 years ago
In 2008, Nadir bought a used car. The graph shows the predicted
deff fn [24]

Answer:

2023

Explanation:

From 2010 to 2018, the expected value becomes lower. From 2018 to 2023, it lowers further. Then, from 2023 to 2028, the value increases. From that, the lowest point should be 2023.

Hope this helps :)

8 0
4 years ago
What career do you think I should go in Construction are are computer science
stiv31 [10]

Answer:

if you don't like to be behind a desk like me I

would do Construction

Explanation:

6 0
4 years ago
The general vision pattern which users reading text-heavy websites will follow, first scanning horizontally across the top line
posledela
OK so the answer to this will be c
6 0
3 years ago
Other questions:
  • Volcanic activity results from a unique dynamic process of earth called
    14·2 answers
  • Which of the following is considered to be typical information needed on a
    11·1 answer
  • NO ONE CAN SOLVE THIS, NEITHER CAN YOU :::By what percent will a fraction change if its numerator is decreased by 10% and its de
    5·2 answers
  • Science impacts society by creating new technology that
    12·1 answer
  • Which best compares and contrast visual and performing arts?​
    13·1 answer
  • Crime victims In 1994 (the most recent year asked), the General Social Survey asked, “During the last year, did anyone take some
    8·1 answer
  • Which of the following are considered needs? Choose three answers. food Internet cell phone residence television water
    15·1 answer
  • Explain how healthcare professionals can attempt to equalize the unequal partnership.
    9·1 answer
  • Which statements are true for an electron moving in the direction of an electric field? (there may be more than one correct choi
    10·1 answer
  • QUESTION for group tutorialsl 1. Briefly explain how the use of ICT for Teaching and Learning prepares learners to live and work
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!