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
soldi70 [24.7K]
3 years ago
7

I have a buddy who recycles electronics, and isolates metals from the connector pins electrical boards. He isolates gold, for ex

ample, and purifies it the best he can, then sells it along with his other scrap metal. This last go around he was able to isolate 3.00 g of Au with a process he claims results in a 80.0% yield. If he is correct, what was his theoretical yield
Chemistry
1 answer:
Kisachek [45]3 years ago
3 0

Answer:

Theoretical yield = 3.75g

Explanation:

Percent yield is defined as one hundred times the ratio between actual yield and theoretical yield. The expression is:

Percent yield = Actual Yield / Theoretical Yield * 100

In the problem, your actual yield was 3-00g.

Percent yield is 80.0%.

Solving for theoretical yield:

80% = 3.00g / Theoretical yield * 100

Theoretical yield = 3.00g / 80.0% * 100

<h3>Theoretical yield = 3.75g</h3>
You might be interested in
A chef is testing out new iron cookware. He knows that iron has a specific heat of
Levart [38]
B is the best answer
8 0
3 years ago
When an electron move from a high energy level to a low energy, it ______ energy.
hjlf

Answer:

released often as light.

7 0
3 years ago
A brine is used to measure the absolute permeability of a core plug. The rock sample is 4 cm long and 3 cm 2 in cross section. T
nydimaria [60]

Answer : The absolute permeability is, 0.111 darcys.

Explanation : Given,

Volumetric constant rate = 0.5cm^3/s

Cross section area = 3cm^2

Pressure = 2 atm

Viscosity = 1.0 cp

Length of rock = 4 cm

From the Darcy equation  we conclude that,

\text{Volumetric constant rate}=\frac{(\text{Absolute permeability}\times A\times P)}{\eta \times l}

where,

A = cross section area

P = pressure

\eta = viscosity

l = length of rock

Now put all the given values in the above formula, we get:

0.5cm^3/s=\frac{(\text{Absolute permeability}\times 3cm^2\times 2\text{ atm})}{1.0cp \times 4cm}

\text{Absolute permeability}=0.111\text{ darcys}

Therefore, the absolute permeability is, 0.111 darcys.

8 0
4 years ago
"The incredible diversity of pterosaurs is perhaps best expressed in one of the
natka813 [3]

Answer:

b

Explanation:

4 0
3 years ago
The process of heat transfer by conduction would not work
Makovka662 [10]
The process of heat transfer by conduction would not work in space:)
5 0
3 years ago
Read 2 more answers
Other questions:
  • Who discovered Chemical Energy?
    11·2 answers
  • What is the mass of OH- in Ca(OH)2
    7·1 answer
  • What mineral is harder, Calcite or Olivine?
    7·2 answers
  • The Theoretical yield is 2.44 g and the actual yield is 3.49 g, what is the percent yield
    14·1 answer
  • Which one is the largest and which one is the smallest
    10·1 answer
  • Which statements are scientific statements? Select all the correct answers. People who drive red cars are more prone to accident
    15·1 answer
  • According to the Clausius theorem, the cyclic integral of<br>for a reversible cycle is zero.​
    9·1 answer
  • How does the suns energy contribute to the movement of water in the water cycle?
    7·1 answer
  • Balance the following equation<br> H2SO4 + Ca(OH)2 --&gt; CaSO4 + H20<br> PLEASE HELP
    9·1 answer
  • Which materials are needed for photosynthesis?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!