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
lukranit [14]
3 years ago
8

How many moles are found in a 100.0 g sample of CuF2?

Chemistry
2 answers:
iren2701 [21]3 years ago
5 0
<span>The molar mass is calculated by the sum of the mass numbers of the atoms that form the molecule. For example: CuF2
</span>Cu: 1*63,54u = 63,54u 
F: 2*19u = 38u
Thus, the molar mass of CuF2 is: 63,54+38= 101,54 g/ mol.
<span>And the number of mol is calculated by the mass divided by the molar mass or it can be solving through the rule of 3. For example:

</span>100 g de CuF2
101,54 g → 1 mol
100 g  → x

101,54x = 100
x = 100/101,54
x = 0,98483... → \boxed{x \approx 0,985 mol}

<span>I hope I have helped you, good studies!</span>
labwork [276]3 years ago
3 0
You can solve this by dividing the mass by the molar mass. The molar mass of CuF2 is about 101.5 g/mol. Therefore there are 100.0/101.5 = 0.985 mol.
You might be interested in
Which tool is most suitable for a chemist to measure the mass of a liquid
I am Lyosha [343]

Chemists use beakers, flasks, burets and pipets to measure the volume of liquids. Plz mark as brainliest

7 0
3 years ago
Read 2 more answers
What two measurements are needed to calculate speed?
Alchen [17]

Answer:

Two essential measurements to calculating average speed are Distance and Time

Explanation:

hope it helps you

5 0
2 years ago
Read 2 more answers
Electrolysis is used in the electroplating of metals. The same amount of current is passed through separate aqueous solutions of
Aleonysh [2.5K]

Answer:

CuSO4 cell will have the greatest amount of deposit among all three. The deposit will occur at the cathode

Explanation:

The valence of the elements in this case is as follows -

Cu - 2e-

Sn - 4e-

Cr - 3e-

CuSO4 cell will have the greatest amount of deposit among all three

The atoms of copper metal will deposit at the cathode. At the cathode, the least number of moles of electrons needed .

Hence, more amount of copper  can be extracted out by the electrolyte

 

3 0
3 years ago
Rectangular prism has a height of 3cm, a width of 7 cm, and a length of 5 cm. What is it's volume?
goldfiish [28.3K]
Volume= length•width•height

V=5•7•3

V= 105cm^3
6 0
3 years ago
How do I find molar mass​
sergij07 [2.7K]

Answer:The molar mass is the mass of a given chemical element or chemical compound (g) divided by the amount of substance (mol).

The molar mass of a compound can be calculated by adding the standard atomic masses (in g/mol) of the constituent atoms.

Explanation:

7 0
2 years ago
Other questions:
  • The hydrogen ion concentration is 1 × 10-7. What is the ph of this solution?
    14·1 answer
  • The elements in the periodic table are arranged in order of
    13·1 answer
  • What is the molar concentration of Na⁺(aq) in a solution that is prepared by mixing 10 mL of a 0.010 M NaHCO₃(aq) solution with
    6·1 answer
  • Water (2230 g ) is heated until it just begins to boil. If the water absorbs 5.73×105 J of heat in the process, what was the ini
    15·1 answer
  • Question 3 (1 point)
    5·1 answer
  • In order to construct a Beer's law plot in this experiment, a stock solution of dye must be diluted to multiple different concen
    11·1 answer
  • Which is the best description of a cyclone?
    6·1 answer
  • _HNO3+ Fe+2
    5·1 answer
  • A gas has a pressure of 8.5atm and occupies 24L at 25∘C. What volume (in liters) will the gas occupy if the pressure is increase
    13·1 answer
  • Solid potassium fluorine gas → solid potassium fluoride balanced
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!