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
For the following chemical equation.
kotegsom [21]

Sr is the limiting reactant.

Given the reaction equation;

2Sr + O2 (g) → 2SrO

2 moles of Sr reacts with 1 mole of O2

2 moles Sr will react with x mole of O2

x = 2 ×1/2

x = 1 mole of O2

Since we have more O2 than required, it is the reactant in excess, hence Sr is the limiting reactant.

Learn more: brainly.com/question/14225536

5 0
2 years ago
Write three primary alcohol with the formula C4H8O​
pishuonlain [190]

Answer:

CH2 will be CH-CH2-CH2OH

CH3-CH will beCH-CH2OH

CH2 will be C(CH3)-CH2OH

3 0
2 years ago
The high electrical conductivity of metals is primarily due to
zubka84 [21]

High conductivity of metals is caused by electrons that are free to move through the lattice.

hope this helps!

7 0
2 years ago
____________ limits or stops the growth of bacteria.
Kaylis [27]

Answer:

Vaccines

Explanation:

3 0
2 years ago
Read 2 more answers
Calcium reacts with water. This reaction is represented by the balanced equation below. The aqueous product of this reaction can
Harrizon [31]
The aqueous product conducts electricity while the solid does not. Ionic solids do not conduct electricity, but ions dissolved in solution do. The chemical name of the base is calcium hydroxide. Increasing the temperature of the system would increase the rate of the reaction.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Redox titrations are used to determine the amounts of oxidizing and reducing agents in solution. For example, a solution of hydr
    7·1 answer
  • Why do you cool down tea extract in ice to below 40°c before adding dichloromethane?
    8·1 answer
  • Need major help. Help me please
    13·1 answer
  • List three limitations of human space travel
    7·2 answers
  • Which type of radiation is identical in mass and charge to a helium nucleus?
    9·1 answer
  • Lewis is running in a race. His muscles need oxygen. Which best describes how multiple systems interact to bring him into homeos
    13·2 answers
  • What would happen to global temperatures of solar energy was unbalanced
    14·1 answer
  • A 2.00 liter evacuated container has a mass of 1050.0 g. When the container is filled with an unknown gas at 800. mm Hg pressure
    6·1 answer
  • While Cameron is intensely working out, his muscles begin to get sore and start to burn. What type of cellular
    6·1 answer
  • A beach ball and a bowling ball were sitting on a shelf. Someone bumped the shelf and the bowling ball and beach ball rolled off
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!