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]
4 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]4 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
The presence of water will ________ the melting temperature of a rock.
N76 [4]
"decrease" would be your answer
6 0
3 years ago
Choose the pair in which the components have the same charge. question 6 options: a proton and a hydrogen atom a hydrogen atom a
worty [1.4K]

Answer:

           A Neutron and a Hydrogen Atom

Explanation:

                   Hydrogen atom having an atomic mass of 1.008 amu consists of one proton and one electron. Hence, the +ve and -ve charges cancels out and makes the hydrogen atom a neutral specie.

                    Also, we know that neutron is neutral sub particle while, proton and electron are positively and negatively charged respectively. Therefore, a neutral neutron having no charge becomes equal to hydrogen atom having zero charge due to cancellation of both +ve and -ve charges.

8 0
3 years ago
Liquids that do not mix are called
djyliett [7]

Answer:

Immiscible liquids

Explanation:

Immiscible comes from two words; 'im' indicating a negation or a contradiction; and 'miscere' meaning to mix.

Putting the words together, immiscible means not able to mix.

3 0
3 years ago
What intermolecular forces are present in hydrogen chloride gas?
vivado [14]
The dipole-dipole forces are present in hydrogen chloride gas. Their interaction in HCI is fairly weak. Hope that answerd your question ☺️☺️
8 0
3 years ago
To which period does an element belong if it has its 3d orbitals filled
kotegsom [21]

fourth period

The third period is similar to the second, except the 3s and 3p sublevels are being filled. Because the 3d sublevel does not fill until after the 4s sublevel, the fourth period contains 18 elements, due to the 10 additional electrons that can be accommodated by the 3d orbitals.

3 0
3 years ago
Other questions:
  • What is the molarity of a solution that contains 9.63 grams of HCI in 1.5 liters of solution
    10·1 answer
  • Which organelle below is the "brain" or control center for a cell?
    5·2 answers
  • What is the net ionic equation for a reaction between HCl and NaOH
    15·1 answer
  • What is the approximate molar mass of CCl4?
    7·2 answers
  • How do the bonds within AND between a water molecule affect the properties of water?
    9·1 answer
  • Define Minerals........help please​
    7·1 answer
  • Please see attachment. Thank yew. Help.
    11·2 answers
  • Write the radicals of first 20 elements.
    9·1 answer
  • What is the pow of a<br> 2.1 x 10-6 M OH-solution?
    9·1 answer
  • Write equations for the following: (b) an addition reactionbetween cyclohexene and Cl₂;
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!