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
avanturin [10]
3 years ago
11

If 30g of HCl is reacted with excess NaOH, and 10g of NaCl is produced, what is the percent yield of the experiment?

Chemistry
1 answer:
omeli [17]3 years ago
6 0

Answer:

Percent yield = 20.85%

Explanation:

Given data:

Mass of HCl = 30 g

Mass of NaCl produced = 10 g

Percent yield of NaCl = ?

Solution:

Chemical equation:

HCl  + NaOH   →    NaCl  + H₂O

Number of moles of HCl:

Number of moles = mass/ molar mass

Number of moles = 30 g/ 36.5 g/mol

Number of moles = 0.82 mol

Now we will compare the moles of HCl with NaCl

                              HCl        :        NaCl

                                 1          :            1

                               0.82      :        0.82

Theoretical yield:

Mass of NaCl:

Mass = number of moles × molar mass

Mass = 0.82 mol × 58.5 g/mol

Mass = 47.97 g

Percent yield:

Percent yield = Actual yield / theoretical yield × 100

Percent yield = 10 g / 47.97 g × 100

Percent yield = 20.85%

You might be interested in
In an estuary, _____.
lapo4ka [179]

B; Seawater mixes with freshwater so the water has intermediate salinity

Explanation:

In an estuary, seawater mixes with freshwater so the water has intermediate salinity. Estuaries are usually located in transitional environments.

  • Estuary is the wide part of a river where it nears the sea.
  • This is called a transitional zone.
  • Water from continental rivers usually fresh are brought in close contact with ocean water that is salty.
  • The water here is said to be brackish as it is intermediate between salt and seawater.
  • Organisms living in such terrain must be be well adapted to changing salinity.

Learn more:

salinity and density brainly.com/question/10491444

#learnwithBrainly

6 0
2 years ago
Carbohydrate loading Group of answer choices involves a reduction in the intensity of workouts with a corresponding increase in
SOVA2 [1]

Answer:

the correct option would be:

The group of response options implies a reduction in the intensity of the workouts with a corresponding increase in the percentage of carbohydrate intake for several days before a competition.

Since the carbohydrate load is an increase in glycogen reserves as an energy source accompanied by a decrease in muscle demand. This is often used in high-performance activities, where strict competencies are required.

Although today some professionals do not support that, but rather support a diet with carbohydrates and proteins.

Explanation:

Carbohydrate loading increases glycogen reserves, it is accompanied by a muscle rest plan, without fatigue of muscle fibers.

The purpose of this is to exhaust the muscle fibers in maximum demands such as the competencies, ensuring a necessary energy source that supplies this reaction, for which glycogen reserves are needed.

7 0
3 years ago
Can sugar and water be separated using distillation?
Bogdan [553]

Answer:

Yes.

Explanation:

Because distillation separates substances based on their different boiling points.

8 0
3 years ago
Read 2 more answers
Công thức của A có dạng Ca(hco3)x có ptk là 162 tìm x
harina [27]

Answer:

j

Explanation:

nwjwjw

dodkekds

dldldle

5 0
2 years ago
Write an equation that expresses the law of thermodynamics in terms of heat and work
Anettt [7]

We write DE = q+w, where DE is the internal energy change and q and w are heat and work, respectively.

(b)Under what conditions will the quantities q and w be negative numbers?

q is negative when heat flows from the system to the surroundings, and w is negative when the system does work on the surroundings.

As an aside: In applying the first law, do we need to measure the internal energy of a system? Explain.

The absolute internal energy of a system cannot be measured, at least in any practical sense. The internal energy encompasses the kinetic energy of all moving particles in the system, including subatomic particles, as well as the electrostatic potential energies between all these particles. We can measure the change in internal energy (DE) as the result of a chemical or physical change, but we cannot determine the absolute internal energy of either the initial or the final state. The first law allows us to calculate the change in internal energy during a transformation by calculating the heat and work exchanged between the system and its surroundings.

3 0
3 years ago
Other questions:
  • Consider the reaction:
    10·1 answer
  • 4. If the earth were to heat up by 3 degrees, approximately how much would the sea level rise?
    13·1 answer
  • Assume that a daily diet of 2000 calories (i.e. 8.37 x 106 J) is converted completely to body heat.
    7·1 answer
  • What are the important points that we consider before using chemical fertilizer?<br>​
    11·1 answer
  • Which phase change is an example of an exothermic process?
    11·1 answer
  • An unknown metal absorbs 61 J of heat, and its temperature increases by 29∘C. What is the heat capacity of the metal?
    9·1 answer
  • Two samples of calcium fluoride are decomposed into their constituent elements. The first sample produced 0.154 g of calcium and
    11·1 answer
  • PLEASEE HELPP ME WITH THIS QUESTIONN!!!!!1
    6·1 answer
  • By how much will the speed of a body of fixed mass, increase if its kinetic energy becomes four times its initial kinetic energy
    7·2 answers
  • Example: Sugar (C12H22O11) - Add up the masses of each element. (Look at your periodic table for the masses.)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!