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
svet-max [94.6K]
3 years ago
9

When calcium carbonate is added to hydrochloric acid, calcium chloride, carbon dioxide, and water are produced.

Chemistry
1 answer:
sp2606 [1]3 years ago
7 0

Answer:

Mass of CaCl₂ =  20 g

CaCO is presewnt in excess.

Mass of of CaCO₃ remain unreacted =  7.007 g

Explanation:

Given data:

Mass of calcium carbonate = 25 g

Mass of hydrochloric acid = 13.0 g

Mass of calcium chloride produced = ?

Chemical equation:

CaCO₃ + 2HCl  →  CaCl₂  + H₂O + CO₂

Number of moles of CaCO₃:

Number of moles of CaCO₃ = Mass /molar mass

Number of moles of CaCO₃= 25.0 g / 100.1 g/mol

Number of moles of CaCO₃ = 0.25 mol

Number of moles of HCl:

Number of moles of  HCl = Mass /molar mass

Number of moles of HCl = 13.0 g / 36.5 g/mol

Number of moles of HCl = 0.36 mol

Now we will compare the moles of CaCl₂ with HCl and CaCO₃ .

                  CaCO₃         :               CaCl₂

                    1                 :               1

                 0.25              :            0.25

                HCl                :                CaCl₂

                 2                   :                    1

                 0.36            :                  1/2 × 0.36 = 0.18 mol

The number of moles of CaCl₂ produced by HCl are less it will be limiting reactant.

Mass of CaCl₂ = moles × molar mass

Mass of CaCl₂ =0.18 mol × 110.98 g/mol

Mass of CaCl₂ =  20 g

The calcium carbonate is present in excess.

                HCl                :                CaCO₃

                 2                   :                    1

                 0.36            :                  1/2 × 0.36 = 0.18 mol

So, 0.18 moles react with 0.36 moles of HCl.

The moles of CaCO₃ remain unreacted = 0.25 -0.18

The moles of CaCO₃ remain unreacted = 0.07 mol

Mass of of CaCO₃ remain unreacted = Moles × molar mass

Mass of of CaCO₃ remain unreacted = 0.07 mol × 100.1 g/mol

Mass of of CaCO₃ remain unreacted =  7.007 g

You might be interested in
What do lightning and stars have in common?
irina1246 [14]

2... one though it is true is not very strong

three is very incorrect and dumb

four... idek

4 0
2 years ago
WILL GIVE BRAINLIEST AND POINTS!!
Aleksandr [31]

Answer:

H2O= +2

CCl4 = +4

Na+= 0

CuCl2= -2

5 0
3 years ago
PLEASE HELP!!!!LIKE NOW!!!
dsp73

I'm not completely sure on this and I apologize if it's wrong, but I believe it's  B) Newton's Law.

6 0
3 years ago
What is the answer? It is very hard was not ther to do it
cricket20 [7]
No idea.. I think if you take angle (<) MNL then divide those...
7 0
2 years ago
What is the speed of light?can a object move in speed of light?​
timurjin [86]

Answer:

The speed of light is the speed at which light travels. No, an object cannot move at the speed of light.  

Explanation:

The speed of light is 186,000 miles per second. An object with mass cannot move at the speed of light since it would take an infinite amount of energy to achieve that velocity, since only massless particles can travel at the speed of light. Also, you would have to factor in air friction, meaning even if an object were to reach such high speeds, it would instantly disintegrate.

4 0
2 years ago
Other questions:
  • A chemist must prepare of nitric acid solution with a pH of at . He will do this in three steps: Fill a volumetric flask about h
    8·1 answer
  • How is dichotomous different from branching diagrams
    9·1 answer
  • When you can not see what is taking place, but other senses indicate occurences. this is called?
    12·1 answer
  • A galvanic cell with E o cell = 0.30 V can be constructed using an iron electrode in a 1.0 M Fe(NO3)2 solution, and either a tin
    5·1 answer
  • during photosynthesis water and carbon dioxide react to from oxygen and glucose how do the products differ from the reactants
    12·1 answer
  • 2. Calculate the density of a liquid in a beaker. The beaker has a mass of 15 grams when empty. The beaker plus an unknown liqui
    10·2 answers
  • Let 4 moles of methanol (liquid) combust in 3 moles of gaseous oxygen to form gaseous carbon dioxide and water vapor. Suppose th
    9·1 answer
  • Which is the most important part of the food web? Producers, decomposers, carnivores, or herbivores
    5·2 answers
  • What is relation between energy and speed of light
    5·1 answer
  • Your patient gets a prescription for 51.5 mcg (micrograms, μg) of digoxin in liquid form. The label reads 0.0250 mg/mL. How many
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!