CHEMISTRY HIGH SCHOOL

What is the percent yield of ferrous sulfide if the actual yield is 220.0 g and the theoretical yield is 275.6 g

Answers

Answer 1
Answer: To get the percent yield, we will use this formula: ((Actual Yield)/(Theoretical Yield)) * 100% Values given: actual yield is 220.0 g theoretical yield is 275.6 g Now, let us substitute the values given. (220.0 grams)/(275.6 grams) = 0.7983 Then, to get the percentage, multiply the quotient by 100. 0.7983 (100) = 79.83% Among the choices, the most plausible answer is 79.8%
Answer 2
Answer: If the actual yield of ferrous sulfide is 220.0 g and its theoretical yield is 275.6 g, the percent yield of ferrous sulfide is 79.8%. Make a proportion. 220.0 g is x percent. 275.6 g is 100%. 220.0 g : x = 275.6 g : 100%. After crossing the products: x = 220.0 g * 100% : 275.6 g = 79.8%

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Which organic compounds are often used to create fragrances for the perfume industry

Answers

Answer: The organic compound used to create fragrances in perfume industry are ester.

Explanation:

Organic compounds are defined as the compounds in which a covalent bond is present between a hydrogen and a carbon atom. These are also known as hydrocarbons.

Esters are an organic compound which have a pleasant and fruity smell and is used in the perfume industry.

Therefore, the organic compound used to create fragrances in perfume industry are ester.
The organic compound often used in perfumes are ESTERS which are sweet smelling substances,  they give the sweet smell to fruits also. 

The Due Process Clause guarantees thata.
the National Government will not interfere with constitutional rights.
b.
States are not bound by their State constitutions in matters of individual rights.
c.
States will not deny people any basic or essential liberties.
d.
State governments will police the National Government.

Answers

The answer is (A), it was put into place because the government was not being equal with everyone's rights.

Final answer:

The Due Process Clause, located in the Fifth and Fourteenth Amendments of the U.S. Constitution, ensures that a person's basic or essential liberties cannot be infringed upon without proper legal procedures and protections. It does not primarily concern with the non-interference of the National Government or the state governments policing the National Government. Individual rights are indeed protected under both State and U.S. Constitutions.

Explanation:

The Due Process Clause is a provision found in both the Fifth and Fourteenth Amendments of the U.S. Constitution. In essence, it ensures that a person cannot be deprived of life, liberty, or property without appropriate legal procedures and protections. From the options you provided, the most accurate is that the Due Process Clause guarantees that 'States will not deny people any basic or essential liberties' (option c). This clause aims to ensure that laws are clear and fair, and that citizens have a fair opportunity to understand them.

As an example, it requires that individuals are given notice when they face legal jeopardy, the right to a fair hearing, and a decision made by a neutral decision-maker. These are all principles embedded within the concept of due process, which indeed ensures our basic and essential liberties are not violated.

Therefore, it does not primarily guarantee non-interference of the National Government with constitutional rights (option a), or that State governments will police the National Government (option d). As for option b, it's not accurate at all. Individual rights are protected by both State and U.S. Constitutions under the principles of due process.

Learn more about Due Process Clause here:

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The temperature at the point of intercept of the plotted data with the Temperature axis is:600°C
-273°C
-160°C
50°C

Answers

Answer: The temperature at the point of intercept is -273°C.

Explanation: Intercept is a point on a graph which crosses the x and y axes.

Here, The X-axis represents Temperature in °C and Y-axis represents the Volume in mL.

On X-axis, the major division is 100 and minor division is 10. The slope intercepts the X-axis at third minor division from the origin. Hence, the temperature of intercept corresponds to -273°C.
An axis is a line of numbers in a graph. The intercept is where a line of data and axis intersect, which if you look at the purple line and the temp. axis, is around -273 C.

Diffusion is the movement of a substancea. only through the lipid bilayer.
b. only in liquids.
c. only in air.
d. from an area of high concentration to an area of low concentration.

Answers

D. from low to high concentration

Answer:

d. from an area of high concentration to an area of low concentration.

Just took the test

WILL MARK BRAINIESTIf the molecules of two different substances have a similar size but the molecules of one substance are polar while the molecules of the other substance are nonpolar, what is most likely true about the substances?
A The polar substance has a lower boiling point than the nonpolar substance.
BThe nonpolar substance has a lower boiling point than the polar substance.
C Both substances have similar volatilities.
DBoth substances have similar solubilities.

Answers

Answer:

  • The correct option is B. The nonpolar substance has a lower boiling point than the polar substance.

Explanation:

  • Substances with hydrogen bonding, an intermolecular force, will have much higher  boiling points than those that have ordinary dipole-dipole intramolecular forces. Non-polar molecules have lower boiling points, because they are held together by the weak van der Waals forces.

Note

  • However, if size of non polar increases, then its boiling point increases due to increases in van der walls forces with large size.
The correct answer is letter B: the non polar substance has a lower boiling point than the polar substance.

A photon has a wavelength of 3.8 × 10-7 meters, which is between visible and ultraviolet. Calculate the energy of this photon.

Answers

Answer:

Energy of the photon is 5.2* 10^(-19) J.

Explanation:

Energy of a photon (E) is given by the following equation-

                                              E=(hc)/(\lambda )

Where h is the plank constant, c is the velocity of light and \lambda is the wavelength of photon.

Hence, E=((6.626* 10^(-34)J.s)* (3* 10^(8)m/s))/(3.8* 10^(-7)m)

So, E=5.2* 10^(-19) J

use the equation Energy of photon = h * c / wavelength

where h is Planck constant = 6.62607004 × 10-34 m2 kg / s

c is velocity of light in vacuum = 3.00 × 108 m/s and

wavelength value already you know

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