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
abruzzese [7]
3 years ago
9

A typical aspirin tablet contains 327 mg of acetylsalicylic acid, HC9H7O4. Calculate the pH of a solution that is prepared by di

ssolving one aspirin tablet(s) in one cup (237 mL) of solution. Assume the aspirin tablets are pure acetylsalicylic acid, Ka = 3.3
Chemistry
1 answer:
yawa3891 [41]3 years ago
6 0

Answer:

2.8

Explanation:

First, we will calculate the molarity of the acetylsalicylic acid solution.

M = mass of solute (g) / molar mass of solute × volume of solution (L)

M = 0.327 g / 180.158 g/mol × 0.237 L

M = 7.66 × 10⁻³ M

For a weak acid such as acetylsalicylic acid, we can find the concentration of H⁺ using the following expression.

[H⁺] = √(Ca × Ka)

where,

Ca: concentration of the acid

Ka: acid dissociation constant

[H⁺] = √(7.66 × 10⁻³ × 3.3 × 10⁻⁴)

[H⁺] = 1.6 × 10⁻³ M

The pH is:

pH = -log [H⁺]

pH = -log 1.6 × 10⁻³ = 2.8

You might be interested in
Check all that apply...helppppp
mote1985 [20]

Answer:

dfgh

Explanation:

3 0
3 years ago
Lewis dot structure for N3-
labwork [276]

Answer :

The steps involved in the electron dot structure of N^{3-} are :

First we have to determine the total number of valence electron in N^{3-}.

Number of valence electrons in N = 5

The charge on N is (-3). So, we add 3 electrons.

Total number of valence electrons = 5 + 3 = 8 electrons

The image is shown below.

4 0
3 years ago
Read 2 more answers
HOW DO I FIND ACCELERATION
agasfer [191]

Answer: acceleration= Change in velocity/ change in time

Explanation:

A= Delta v/ delta t

4 0
3 years ago
Read 2 more answers
Describe the particle mode of matter. what does the brownian motion tells us about the particles in matter?give other evidence t
svetlana [45]

Answer:

dium (a liquid or a gas). This pattern of motion typically consists of random fluctuations in a particle's position inside a fluid sub-domain, followed by a relocation to another sub-domain. Each relocation is followed by more fluctuations within the new closed volume. This pattern describes a fluid at thermal equilibrium, defined by a given temperature. Within such a fluid, there exists no preferential direction of flow (as in transport phenomena). More specifically, the fluid's overall linear and angular momenta remain null over time. The kinetic energies of the molecular Brownian motions, together with those of molecular rotations and vibrations, sum up to the caloric component of a fluid's internal energy (the Equipartition theorem).

Explanation:

3 0
2 years ago
which of the following testable questions will provide evidence that elements in the same group have similar properties?
Usimov [2.4K]

The testable question which will provide evidence that elements in the same group have similar properties is valency

<h3>What is the valency?</h3>

In essence, how many electrons are present in their outermost shell.

Valency and Groups in the periodic table, elements are arranged in order of their atomic numbers and hence, the periodic table is a systematic arrangement of elements in an array of vertical columns called Groups and horizontal arrays called Periods.

  • Complete question here:

which of the following testable questions will provide evidence that elements in the same group have similar properties A. Valency B. Orbit C. Group D. Period

Since, the reactive capacities of elements is dependent on the number of electrons on its outermost shell, we can conclude on this note that, Elements in the same group have similar properties.

Learn more on Groups and Valency:

brainly.com/question/1645905

4 0
2 years ago
Other questions:
  • What property of water allows it to stick to a dry surface, such as a wooden countertop?
    7·1 answer
  • Make 500 mL of the 0.526 M glucose solution.
    15·1 answer
  • Which are made of matter?
    11·1 answer
  • How much is the density of carbon dioxide gas if .392g occupies a volume of 200 ml
    13·1 answer
  • How does the activity series help determine the anode of a voltaic cell?
    8·2 answers
  • a cylinder container is filled with air. its radius is 6cm and its height is 3.5cm. what is the volume of the air inside?
    9·1 answer
  • If 36 000 kg of full cream milk containing 4% fat is to be separated in a 6 hour period into skim milk with 0.45% fat and cream
    14·1 answer
  • During which change of state does the thermal energy of a substance increase
    14·1 answer
  • Within a period, the nuclear charge increases as you move from left to right across the
    13·1 answer
  • In diamond, each carbon atom is covalently bonded to four other carbons in a
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!