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
Sophie [7]
3 years ago
5

How many moles of oxygen are in 25.45 g of caco3?

Chemistry
1 answer:
emmainna [20.7K]3 years ago
3 0
From the periodic table:
mass of oxygen = 16 grams
mass of calcium = 40 grams
mass of carbon = 12 grams
mass of CaCO3 = 40 + 12 + 3(16) = 100 grams
Therefore, each 100 grams of CaCO3 contains 3 moles of oxygen
To know the number of oxygen moles in 25.45 grams, we will simply do cross multiplication as follows:
number of oxygen moles = (25.45 x 3) / 100 = 0.7636
You might be interested in
Water (2110 g ) is heated until it just begins to boil. if the water absorbs 551000. j of heat in the process, what was the init
Sunny_sXe [5.5K]
Answer:
42.9
∘
C
Explanation:
The idea here is that the problem is providing you with the amount of heat needed to raise the temperature of a given sample of water from an initial temperature to its boiling point, i.e. to 100
8 0
3 years ago
What is shown by the structural formula of a molecule or polyatomic ion?
Misha Larkins [42]
Answer : Option A) the arrangement of bonded atoms.


Explanation : A structural formula of certain molecule depicts the way the atoms are arranged in that particular molecule in any polyatomic species. It helps in deciding the chemical properties of that polyatomic molecule.
6 0
3 years ago
Read 2 more answers
In addition to decreasing the amount of fat in a dish, salsa can also increase the amount of
morpeh [17]
Its c ok im sorry if i got the last answer wrong
4 0
3 years ago
Help me i mark brain thing
o-na [289]

Answer:

Becuase they can go through mountains and hills, they curve of of those.

5 0
3 years ago
if a girl holds a ball at waist level and then lifts the ball above her head and holds it there which of the following is she do
Zigmanuir [339]

Answer:

She is making kinetic energy when she lifts the ball and when the ball is above her head the ball gains potential energy.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following notations is the correct noble gas configuration for
    11·1 answer
  • In a particle accelerator, the accelerated particle primarily gains what?
    5·1 answer
  • How does the atomic arrangement of atoms lead to its crystal structure like was it was seen in the sample of bronze with gold an
    15·2 answers
  • Which of the following reactions Shows a chemical change producing a gas? APEX
    14·2 answers
  • What type of molecular attraction accounts for the high boiling point of H2O
    10·1 answer
  • What is the term for a solid that forms when two liquids are mixed together
    9·2 answers
  • 52.0 g of LiCl represents ______ moles of LiCl
    6·1 answer
  • Chemical bonding is the
    14·1 answer
  • The following illustration shows a tool that can be used to separate elements of certain mixtures. The picture is a magnet. This
    8·1 answer
  • Heat that flows by conduction is the transfer of thermal energy between substances in contact. What must occur for this to happe
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!