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
Furkat [3]
3 years ago
13

What is the percent of Cr in Cr2O3

Chemistry
2 answers:
IgorLugansk [536]3 years ago
5 0
The percentage of Chromium in Chromium Oxide is calculated as follow,

Step 1:
           Calculate Molar mass of Cr₂O₃,
Cr = 51.99 u
O = 16 u
So,
     2(51.99) + 3(16) = 103.98 + 48 = 151.98 u

Step 2:
          Secondly divide molar mass of only chromium with total mass of Cr₂O₃ and multiply with 100.
i.e.
                   = \frac{103.98}{151.98} × 100
                   
                   = 68.41 %
So, the %age composition of chromium in chromium oxide is 68.41 %.
lys-0071 [83]3 years ago
4 0

Answer:

68.41

Explanation:

You might be interested in
Give the orbital notation for a neutral atom of titanium
dedylja [7]

Answer:

Explanation:

A neutral titanium atom will have 22 electrons. Therefore, its electron configuration will be 1s2 2s2 2p6 3s2 3p6 4s2 3d2.

5 0
3 years ago
Which is an element? ... air ...carbon dioxide ...hydrogen ...water Description
Natalka [10]
All Elements are obtained in the periodic table & water is Not an element it is a compound.
5 0
3 years ago
Read 2 more answers
a car manufacturer claims that since their car engines dont get very hot, more of the gasolines energy can be used to make the c
ivanzaharov [21]
Newton’s 2nd law? Maybe I’m not completely sure
7 0
3 years ago
PLEASE HELP MEEE!!!!
Assoli18 [71]
It would be 35.8 Calories or calories. Not sure about that part. Hope this helps though.
3 0
3 years ago
As two chlorine atoms combine to form a molecule, energy is
raketka [301]
B. released, forming bonds usually releases energy.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Be sure to answer all parts.Classify each nitrogen-containing functional group in the anesthetic lidocaine according to whether
    10·1 answer
  • What are the correct answers to these questions?
    15·1 answer
  • Aluminum chloride is added to cesium does a single replacement reaction occur, and if so what is the correct chemical equation f
    15·2 answers
  • 5.05 g<br> Express your answer as an integer.
    5·1 answer
  • PLEASE HELP ME ASAP!!!
    15·1 answer
  • If the density is 0.1 g/cm^3 and the volume is 5cm^3, what is the mass?
    7·1 answer
  • PLEASE HELP NEED HELP ASAP Which of the answers correctly completes the following statement? __________ chemical bonds requires
    13·1 answer
  • What is the concentration of lithium ions in 0.400 M Li₂HPO₄?
    7·1 answer
  • Does benzene have any isomers?
    13·2 answers
  • Question ( please help me )
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!