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
Ugo [173]
3 years ago
12

How many moles are in 2.12g Cr2O3

Chemistry
1 answer:
ohaa [14]3 years ago
4 0

Answer:

0.01395mol Cr2O3

Explanation:

the molar mass of Cr2O3 is 151.9904 g/mol

2.12g Cr2O3 x 1 mol/151.9904g = 0.01395mol Cr2O3

You might be interested in
Jon rides his bike for 10 minutes and travels 5 km. What is Jon's average speed?
Bogdan [553]

Answer:

50

Explanation:

It is 50 because 5×10=50

3 0
3 years ago
Read 2 more answers
Bainliest. Mole Conversion
Flauer [41]

Answer:

125g × 1 mol/16 grams = 7.81 × avogadros #

3 0
3 years ago
Solid iron (III) oxide reacts with hydrogen gas to form iron and water. How many grams of iron are produced when 440.23 grams of
Nookie1986 [14]

When 440.23 grams of iron(III) oxide are reacted with hydrogen gas, the amount of iron produced will be 307.66 grams

<h3>Stoichiometric calculation</h3>

From the equation of the reaction:

Fe_2O_3 + 3H_2 --- > 2Fe + 3H_2O

The mole ratio of iron(III) oxide to produced iron is 1:2.

Mole of 440.23 iron(III) oxide = 440.23/159.69 = 2.76 moles

Equivalent mole of produced iron = 2.76 x 2 = 5.52 moles

Mass of 5.52 moles of iron = 5.52 x 55.8 = 307.66 grams

More on stoichiometric calculations can be found here; brainly.com/question/27287858

#SPJ1

4 0
2 years ago
What the Purpose of seeds
k0ka [10]

Answer:

The purpose of all seed is reproduction and is to grow a new plant, thus propagating the species.

5 0
3 years ago
Can someone tell me how Antrax effects the body.
wel
The effects<span> of A</span>nthrax<span> on the </span>body<span> include, shock, difficulty breathing, and intestinal inflammation. In serious cases, A</span>nthrax<span> can lead to inflammation of the areas surrounding the brain, and spinal cord, causing severe bleeding. This illness could also lead to death.
I hope this helps!</span>
6 0
3 years ago
Read 2 more answers
Other questions:
  • At physiological ph, the ionized state of the carboxyl (cooh) group in the r group of aspartic acid is:
    7·1 answer
  • Saltpeter is a compound made of potassium (k), nitrogen (n), and oxygen (o). every 100.00 g of saltpeter contains 38.67 g potass
    6·2 answers
  • If 22.5L of nitrogen at 748 mm Hg are compressed to 725mm Hg at constant temperature. What is the new volume?
    7·1 answer
  • Show how the following are formed
    5·1 answer
  • In order to jave 2.2 moles of potassium oxide, how many grams of potassium are needed
    15·1 answer
  • Question 1: Gases diffuse easily through these types of solids
    13·1 answer
  • One of the ingredients used to make bread is yeast, a type of microorganism. This may seem odd, to use a microorganism as an ing
    11·2 answers
  • Write one word for the following short form of an element​
    15·1 answer
  • (a)
    15·1 answer
  • Rank the following atoms and ions from least to greatest ionization energy:
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!