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
KIM [24]
2 years ago
13

In order to produce CO2, a student put a sample of calcium carbonate in a flask and added hydrochloric acid using the following

equation: Ca(CO3) + HCl → H2O + CO2 + CaCl2 The student finds the mass of CO2 generated to be 100 g. If the student began with 200 g of HCl and there was ample CaCO3 left unreacted, what was the percent yield?
Chemistry
1 answer:
Lady_Fox [76]2 years ago
4 0

Answer:

82.9% Is the percent yield

Explanation:

First, we need to balance the equation.

Ca(CO3) + 2HCl → H2O + CO2 + CaCl2

Since the problem tells you that the excess reactant is Ca(CO3), we just need to Stoichiometry to solve for the theoretical yield.

\frac{200g HCl}{1} x \frac{1 mole HCl}{36.46gHCl} x \frac{1 mol CO2}{2molHCl} x \frac{44.01CO2}{1molCO2} =120.707 g (theoretical yield)

Take your actual yield of 100g, divide that by 120.707, then multiply that decimical by 100.

You might be interested in
In the following equation, which element has been reduced?
Mila [183]
The answer is A. you sre correct!
4 0
2 years ago
the atomic number is the number of protons, but in a neutral atom it is also the number of _____. A. none of these B. electrons
aksik [14]

Answer:

Electrons

hope it helps

6 0
2 years ago
Write the condensed nd structural formulas as well as the names for all isomers of C3H5Cl3.
Sergio039 [100]

Answer:

1) 1,1,1-trichloropropane

2) 1,1,2-trichloropropane

3) 1,2,2-trichloropropane

4) 1,2,3-trichloropropane

Explanation:

For this question, we must remember that isomers are molecules that have the <em>same formula but different structure</em>s. For the formula C_3H_5Cl_3 we can draw a <u>linear chain of three carbons</u> and change the position of the chlorine atoms in the carbon chain.

With this in mind, if we put all the chlorine atoms on the same carbon we will get <u>1,1,1-trichloropropane</u>. If we change an atom from chlorine to carbon 2 we will obtain <u>1,1,2-trichloropropane</u>. If we move another chlorine atom to carbon two we will get <u>1,2,2-trichloropropane</u>. Finally, if we put a chlorine atom in each carbon we will obtain <u>1,2,3-trichloropropane</u>.

See figure one for further explanations

I hope it helps!

4 0
3 years ago
Acceleration of an object
Yuki888 [10]

Answer:

velocity

Explanation:

The definition of acceleration is: Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity.

7 0
2 years ago
Read 2 more answers
Which of the following is an example of a safe laboratory procedure?
ollegr [7]
<span>A is the correct answer. Tying back long hair and loose clothing is important so they don’t dangle in flames or liquids that could dissolve or bleach them, for example. The other choices - consuming food and drink from lab wares, touching hot objects without gloves on and inhaling odors - are examples of very unsafe procedures. </span>
3 0
2 years ago
Read 2 more answers
Other questions:
  • What scientific instrument is sensitive enough to detect a planet transiting a star?
    10·1 answer
  • Consider the reaction: 2clf3(g) + 2nh3(g) → n2(g) + 6hf(g) + cl2(g) when calculating the δh°rxn, why is the δhf° for n2 not impo
    9·1 answer
  • What is the use of a pedigree chart? Please do not answer wat a perigee chart is!.
    12·2 answers
  • Describe the composition of Earth’s atmosphere
    12·1 answer
  • We never went over this in class and I am confused. Will give brainliest!!
    9·2 answers
  • KBr will undergo dissociation in solution while benzene will undergo solvation. True or False
    6·1 answer
  • Consider the following equilibrium:
    10·1 answer
  • 6th grade science . :((
    9·1 answer
  • Calculate the percentage of sodium and carbon and oxygen in sodium carbonate​
    14·1 answer
  • some regions of a polypeptide may coil or fold back on themselves. this is called , and the coils or folds are held in place by
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!