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
Andrej [43]
3 years ago
14

What is the mass of 3.01 x 10^21 atoms of Co

Chemistry
1 answer:
OlgaM077 [116]3 years ago
5 0

Answer:

0.295 g Co

General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Explanation:

<u>Step 1: Define</u>

3.01 × 10²¹ atoms Co

<u>Step 2: Identify Conversions</u>

Avogadro's Number

Molar Mass of Co - 58.93 g/mol

<u>Step 3: Convert</u>

<u />3.01 \cdot 10^{21} \ atoms \ Co(\frac{1 \ mol \ Co}{6.022 \cdot 10^{23} \ atoms \ Co} )(\frac{58.93 \ g \ Co}{1 \ mol \ Co} ) = 0.294552 g Co

<u>Step 4: Check</u>

<em>We are given 3 sig figs. Follow sig fig rules and round.</em>

0.294552 g Co ≈ 0.295 g Co

You might be interested in
List all wether
nignag [31]

Explanation:

Agricultural productivity is dependent on Co2, Temperature, Solar Radiation, Precipitation, Soil Moisture and Wind Direction. Changes in any or all of these elements has a direct impact on the crop production.

7 0
3 years ago
Which of the following is a farming method that helps reduce the effects of wind erosion?
MrMuchimi
You can reduce wind erosion by providing a protective plant cover for the soil.
4 0
3 years ago
Simply parmanent tissue bibliography please help it's for my project ​
daser333 [38]

Answer:

Do your project by yourself

6 0
2 years ago
2. Which is a product in the following chemical reaction? CH4 + 202 - CO2 + 2H20
irga5000 [103]

Answer:

Co2 and 2H2O are products

Explanation:

In this chemical equation, CH4 and 2O2 react with each other to create a double replacement reaction which creates CO2 and 2H20

Hope this helps!

7 0
3 years ago
1) A block of aluminum has a mass of 40.5
-Dominant- [34]

Answer:

15 ml

Explanation:

\frac{40,5}{y}=\frac{2,7}{1}

2,7y=40,5

y=40,5/2,7=405/27= 15ml

7 0
3 years ago
Other questions:
  • Does gravity affect the orbit of the international space station
    8·2 answers
  • In the first law of thermodynamics, angle E = Q - W, what does Angle E stand for?
    15·2 answers
  • Which of the following was a consequence of building the Inco Superstack?
    14·1 answer
  • If there were an element above fluorine in the periodic table what phase would you expect it to be in (at room temp)?
    6·1 answer
  • What is bias in an experiment?
    11·1 answer
  • Suppose two gases in a container have a total pressure of 1.20 atm. What is the pressure of Gas B if the partial pressure of Gas
    12·2 answers
  • Help!!!<br> (I'll only give brainliest if it's right)
    14·2 answers
  • Nitrogen (N) has an atomic number of 7 and an atomic mass of 14. Which of the following correctly shows the electron arrangement
    11·2 answers
  • 50 mL graduated cylinder contains 25.0 mL of water. A 142.5040 g piece of osmium is placed in the graduated cylinder and the wat
    14·1 answer
  • Becquerel placed photographic paper in a drawer with some radioactive rocks and discovered that the amount of exposure on the pa
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!