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3 years ago

Crude oil is separated into different substances such as gasoline, petroleum, diesel fuel, and propane by which process ?

1 answer:

4 0

Fractionation - to expand from my answer to a previous question fractionation can be used to separate out more than one component based on a specific property. You still wanted to use Distillation on the other answer. Fractionation on this one.

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Calculate the equilibrium constant for each of the reactions at 25 ∘c.2fe3+(aq)+3sn(s)→2fe(s)+3sn2+(aq)

Contact [7]

The equilibrium constant, represented as a variable K, is the ratio of the concentration of the products to the reactants which are raised respectively to their stoichiometric coefficients. Note that only substances in the aqueous phases are accounted. From the reaction given, K is equal to

K = [Sn²⁺]³/[Fe³⁺]²

Once you know the equilibrium concentration of Sn²⁺ and Fe³⁺ in molarity, just substitute them into the equation to solve for K.

4 0

3 years ago

When the excited electron in a hydrogen atom falls from to , a photon of blue light is emitted. If an excited electron in falls

Dima020 [189]

Answer:

n = 3 for similar blue light

Explanation:

The principle applied here is energy levels and energy changes. There are different energy levels depending on the value of the integer as explained by Max planck - a german physicist in 1900, Max planck claimed that electrons in an atom were presumed to be oscillating with a frequency f, then there enrrgy will be given by the plancks equation ; E =hf, where h is the plancks constant.

In general energy of each level can be written as E =nhf

3 0

3 years ago

How do you think this food web would be affected if the plants were eliminated

NNADVOKAT [17]

The Answer would be C. Without plants in the ecosystem, it could not feed. Plants are mainly the only producers that feed 3rd level consumers which feed 2nd level consumers which feed 1st level consumers.

4 0

4 years ago

True or False. Weather describes the atmospheric events that occur each day & climate is the average weather pattern in an a

Ilia_Sergeevich [38]

Answer:

true

Explanation:

7 0

3 years ago

Read 2 more answers

A slice of Swiss cheese contains 41 mg of sodium.

larisa86 [58]

Answer:

a. 41 mg equals 0.041 grams.

b. 41 mg equals 0.0014462 ounces

c. 41 mg equals 9.039*10⁻⁵ pounds

Explanation:

You know that a slice of Swiss cheese contains 41 mg of sodium.

a. What is this mass in grams?

Knowing that 1 mg = 10⁻³ g, you can apply the following rule of three: if 1 mg equals 10⁻³ g or 0.001 grams, 41 mg will be equivalent to how much mass in g?

$mass=\frac{41 mg*0.001 g}{1 mg}$

mass= 0.041 grams

41 mg equals 0.041 grams.

b. What is this mass in ounces?

Knowing that 1 mg = 3.5274 * 10⁻⁵ ounces, you can apply the following rule of three: if 1 mg equals 3.5274 * 10⁻⁵ ounces, 41 mg will be equivalent to how much mass in ounces?

$mass=\frac{41 mg*3.5274*10^{-5}ounces }{1 mg}$

mass= 1.4462*10 ⁻³ ounces= 0.0014462 ounces

41 mg equals 0.0014462 ounces

c. What is this mass in pounds?

Knowing that 1 mg = 2.20462 * 10⁻⁶ pounds, you can apply the following rule of three: if 1 mg equals 2.20462 * 10⁻⁶ pounds, 41 mg will be equivalent to how much mass in pounds?

$mass=\frac{41 mg*2.20462*10^{-6}pounds }{1 mg}$

mass= 9.039*10⁻⁵ pounds

41 mg equals 9.039*10⁻⁵ pounds

5 0

3 years ago