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
vesna_86 [32]
3 years ago
7

CaCO3---> CaO+CO2 How many moles of CaO form when 98.60g CaCO3 decompose? 98.60g CaCO3= ______ mol CaO

Chemistry
2 answers:
kramer3 years ago
7 0

Answer:

0.9852 moles of CaO

Explanation:

Reaction equation for the decomposition of CaCO₃:

CaCO₃ → CaO + CO₂

The question asks <em>how many moles of CaO form when 98.60g of CaCO₃ decompose.</em>

We can see from the reaction equation that for every mol of CaCO₃, one mol of CaO will be produced (molar ratio 1:1)

_____________________________________________________

So first we need to<u> calculate how many moles are the 98.60g of CaCO₃</u>:

Molar Mass of CaCO₃ = molar mass Ca + molar mass C + 3 * molar mass O

                                     = 40.078 + 12.011 + 3 * 15.999 = 100.086 g/mol

Moles of CaCO₃ = mass CaCO₃ / molar mass CaCO₃

Moles of CaCO₃ = 98.60 g / 100.086 g/mol = 0.9852 moles CaCO₃

________________________________________________________

As we said before <em>for every mol of CaCO₃, one mol of CaO is produced.</em>

So the decomposition of 0.9852 moles of CaCO₃ will produce 0.9852 moles of CaO.

Sav [38]3 years ago
3 0

Hey I think it is going to be 0986 moles. Cuz we can see that no. of moles of CaCO3 which will decompose is equivalent to the no. of CaO . Now it's just the matter of finding the no. of moles of CaCO3 .

<span>no.of moles=<span><span>mass /</span><span>relative molecular mass</span></span></span>

You might be interested in
Every atom's goal is to get ________ electrons in its valence shell.
sdas [7]
Every atom tends to form configuration of noble gas , with the 8 electrons in valence shell.
6 0
3 years ago
Define solubility (in science)
Ksju [112]
<span>Solubility is the property of a solid, liquid or gaseous chemical substance called solute to dissolve in a solid, liquid or gaseous solvent.</span>
4 0
2 years ago
The nervous system involves actions that control
NeTakaya

Answer:

The peripheral nervous system can be further divided into the autonomic system, which regulates involuntary actions, and the somatic system, which controls voluntary actions.

Explanation:

mark as brainly plz and thanks

4 0
2 years ago
Read 2 more answers
HELP ME WITH THIS LAST QUESTION FROM PAGE 2
spayn [35]

Carbonates

OPTION A is the correct answer

7 0
2 years ago
Read 2 more answers
3. Which type of rock is formed 20 kilometers below Earth's surface? (1 sedimentary 2. metamorphic 3. igneous 4.magma please hel
Verizon [17]

Answer:

3

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • A 38-lb child is prescribed acyclovir for chicken pox in an amount of 80 mg/ kg body weight per day to be divided in four doses
    9·1 answer
  • The melting points for the compounds li2s, rb2s, and k2s are 900°c, 530°c, and 840°c, respectively. list these three compounds i
    10·1 answer
  • When 2.50grams of nacl is dissolved in 2liters of water what is the concentration of the solutuon​
    13·1 answer
  • What do carbon hydrogen and oxygen atoms have in common
    8·1 answer
  • Select the appropriate words to fill in the blanks. A solution in which no more solute can be dissolved in is referred to as ___
    14·2 answers
  • What does sodium react with
    10·1 answer
  • Can u answer all of em
    7·1 answer
  • 20 point help now Which of the following would be a clue that a rock is sedimentary?
    6·1 answer
  • PREDICT Do you think warming a cannonball in a fire has any effect
    15·1 answer
  • CH4(9) + H2O(g) &lt;&gt; CO(g) + 3 H2(g)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!