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
nignag [31]
3 years ago
10

Find the total number of atoms in a sample of cocaine hydrochloride, c17h22clno4, of mass 23.0 mg .

Chemistry
1 answer:
Nataliya [291]3 years ago
3 0
From the periodic table:
mass of carbon = 12 grams
mass of hydrogen = 1 gram
mass of nitrogen = 14 grams
mass of oxygen = 16 grams
mass of chlorine = 35.5 grams
Therefore,
molar mass of <span>c17h22clno4 = 17(12) + 22(1) + 35.5 + 14 + 4(16) = 339.5 grams

number of moles = mass / molar mass
number of moles = (23*10^-3) / (339.5)
number of moles = 6.77 * 10^-5 moles

number of atoms = number of moles * Avogadro's number
number of atoms = 6.77*10^-5 * 6.022*10^-23
number of atoms = 4.079 * 10^-27 atoms</span>
You might be interested in
Read the scenario and then answer the question.
Dvinal [7]

Elias could be standing on the transform boundary.

Answer: Option 1.

<u>Explanation:</u>

Transform boundaries are places where plates slide sideways past one another. At change limits lithosphere is neither made nor devastated. Many change limits are found on the ocean bottom, where they associate fragments of veering mid-sea edges. California's San Andreas issue is a transform boundary.

Transform boundaries are regions where the Earth's plates move past one another, scouring along the edges. Every one of these three sorts of plate limit has its own specific kind of flaw (or break) along which movement happens. Transforms are strike-slip issues. There is no vertical movement—just horizontal.

6 0
3 years ago
The gold foil experiment resulted in two major discoveries which were made about the structure of the atom. what were they
DanielleElmas [232]
It showed that the nucleus is positively charged, and that the atom isn't just made of electrons.
8 0
3 years ago
Order the list of Earth’s water resources from greatest to least: Rivers; Ocean water (salt); Ice Caps/glaciers; Groundwater
Volgvan
Ground, ice caps/glacier, the ocean.
8 0
2 years ago
Read 2 more answers
A large, semi-truck hauling a full load and a small car are traveling in the same direction. As they approach a sharp curve in t
WARRIOR [948]
The semi will have the hardest time changing direction because of its mass. The more mass there is, the more effort it takes to accelerate and decelerate as well as change direction.
7 0
3 years ago
How many molecules of CO2 would 700g be?
podryga [215]

Answer:

13

Explanation:

6 0
2 years ago
Other questions:
  • At atmospheric pressure a balloon contains 2.00 l of nitrogen gas how would the volume change \
    7·1 answer
  • What volume of a 2.5 M stock solution of acetic acid (HC2H3O2) is required to prepare 100.0 milliliters of a 0.50 M acetic acid
    12·1 answer
  • Which element has the greatest number of valence electrons available for bonding?
    8·1 answer
  • What does the foundation of the continents mostly consist of?
    10·2 answers
  • How does carbon dioxide behave differently (its properties) as a gas compared with as a solid?
    14·1 answer
  • How you do this?need help with bro HW
    8·1 answer
  • A balanced chemical equation has the same number and type of atoms in the reactants as compared to the products. An unbalanced c
    7·1 answer
  • True or False. Star gazing is a pretty popular hobby in today's world.
    8·2 answers
  • 4. The only two elements in alkanes, alkenes and alkynes are...
    9·1 answer
  • soaps do not work well in hard waters. But they can still be effected it large quantities of soap are added to water. Explain wh
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!