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
grigory [225]
3 years ago
8

How many atom of cd are in 3.00g of cadmium

Chemistry
2 answers:
REY [17]3 years ago
8 0
The molar mass of Cadmium is 112.41 grams, so first you need to convert your given value to moles. To do that divide 3 grams by the molar mass of 112.41 grams. That gives you an answer of .0267 moles of cadmium. Then to convert that value to atoms, you must use the constant of 6.022X10^23 atoms in one mole. Multiply the moles by that number, which will give you a final answer of (1.61X10^22) atoms in 3 grams of cadmium.

Hope this helps!
Crazy boy [7]3 years ago
5 0
I wish i was smart enough
You might be interested in
How did Bohr refine the model of the atom? How did Bohr refine the model of the atom? He developed electrochemistry. He discover
BartSMP [9]

Answer:

He developed the concept of concentric electron energy levels

Explanation:

Before Bohr's model, Rutherford's model was proposed. This model explains most of the properties of the atom but failed to explain the stability of the atom.

As per Rutherford's model, electrons revolve around the nucleus in the orbit.

But revolving electron in their orbit around nucleus would give up energy and so gradually move towards the nucleus and therefore, eventually collapse.

Bohr's proposed that the electrons around the nucleus move orbit of fixed energy called "stationary states". Electrons in these stationary states  do not radiate energy.

Therefore, proposal of concentric electron energy levels refine the atomic models.

5 0
3 years ago
26. All atoms area. positively charged, with the number of protons exceeding the number of electronsb, negatively charged, with
user100 [1]
(26) All atoms area...<span><span>with the number of protons equaling the number of electrons

</span>(27) </span>The particles that are found in the nucleus of an atom are...<span> protons and neutrons.

(28) </span>As a consequence of the discovery of the nucleus by Rutherford, which model of the atom is thought to be true?...<span>Protons. electrons, and neutrons are evenly distributed throughout the volume of the atom.

(29) </span>The nucleus of an atom is...<span>the central core and is composed of protons and neutrons</span>. 
7 0
3 years ago
Name the method that used to separated <br><br> amino acids from fruit juice solution
Ket [755]
Using the method chromatography
8 0
3 years ago
The measure of a right angle is
yawa3891 [41]
Answer:

90° is the measure, hope this helped :)
7 0
2 years ago
When 150. g zinc sulfide are burned in excess oxygen, 68.5 g of zinc oxide are actually produced, along with sulfur dioxide. Det
Bumek [7]

%yield = 54.6%

<h3>Further explanation</h3>

Percent yield is the compare of the amount of product obtained from a reaction with the amount you calculated

(theoretical)

General formula:

Percent yield = (Actual yield / theoretical yield )x 100%

<h3 />

Reaction

2ZnS+3O₂ ⇒ 2ZnO+2SO₂

MW ZnS = 97.474 g/mol

  • mol ZnS

\tt \dfrac{150}{97.474}=1.54

MW ZnO = 81.38 g/mol

  • mol ZnO (from mol ZnS as limiting reactant, O₂ excess)

\tt \dfrac{2}{2}\times 1.54=1.54

  • Actual ZnO produced

\tt 1.54\times 81.38=125.33~g

Theoretical production = 125.388

  • %yield

\tt \dfrac{68.5}{125.33}\times 100\%=\boxed{\bold{54.6\%}}

4 0
3 years ago
Other questions:
  • It’s cold outside and you decide to cook some pasta. As you boil the noodles, the kitchen window begins to fog up. Which process
    7·2 answers
  • Give a theoretical reason why lithium and oxygen combine in the ratio 2:1
    13·1 answer
  • Observation And Assessment
    11·1 answer
  • A small diamond, which is made of pure carbon, contains too many carbon atoms to count individually. Which is closest to the num
    11·1 answer
  • A → B is a first order reaction. Using the data below, what is the half-life in seconds? 0 sec, [A] = 1.22 M 3 sec, [A] = 0.86 M
    15·1 answer
  • A student needs to conduct a reaction that combines chemicals A and B to synthesize product AB. If we write this as a chemical e
    9·1 answer
  • If 9.9L of helium are in a tire at 303k,how many liters will be present at 403k if the pressure is held constant.
    5·1 answer
  • (Dear brainly, you can't delete this question caue its about school work too)
    10·2 answers
  • George Tomlin, RMA, has been working for several years in a specialty practice. He applies for a position closer to his home wit
    12·2 answers
  • The key enzyme in the regulation of the citric acid cycle is:.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!