All categories

3 years ago

The molar percent of a in stream 3 is _________ mol% a in stream 1.

Chemistry

1 answer:

vredina [299]3 years ago

4 0

From the problem description you've given, I can't give an exact answer without a context. However, I found a similar problem with an illustration. Supposing this is the problem, we can set a mole balance:

n₁ = n₂ + n₃

Since n₃ is just part of n₁, it will always be less than n₁ because n₁ constitutes 100% mol A. Thus, the answer is letter C.

You might be interested in

Solid sodium iodide is slowly added to a solution that is 0.0050 M Pb 2+ and 0.0050 M Ag +. [K sp (PbI 2) = 1.4 × 10 –8; K sp (A

UkoKoshka [18]

Answer:

[Ag⁺] = 5.0x10⁻¹⁴M

Explanation:

The product solubility constant, Ksp, of the insoluble salts PbI₂ and AgI is defined as follows:

Ksp(PbI₂) = [Pb²⁺] [I⁻]² = 1.4x10⁻⁸

Ksp(AgI) = [Ag⁺] [I⁻] = 8.3x10⁻¹⁷

The PbI₂ <em>just begin to precipitate when the product [Pb²⁺] [I⁻]² = 1.4x10⁻⁸</em>

<em />

As the initial [Pb²⁺] = 0.0050M:

[Pb²⁺] [I⁻]² = 1.4x10⁻⁸

[0.0050] [I⁻]² = 1.4x10⁻⁸

[I⁻]² = 1.4x10⁻⁸ / 0.0050

[I⁻]² = 2.8x10⁻⁶

So, as the [I⁻] concentration is also in the expression of Ksp of AgI and you know concentration in solution of I⁻ = 1.67x10⁻³M:

[Ag⁺] [I⁻] = 8.3x10⁻¹⁷

[Ag⁺] [1.67x10⁻³] = 8.3x10⁻¹⁷

6 0

3 years ago

The compound whose molecules have the highest average kinetic energy is?

KIM [24]

Answer:

Explanation:

The warmer the molecules, the higher the average kinetic energy.

"As stated in the kinetic-molecular theory, the temperature of a substance is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles. This is registered as an increase in the temperature of the substance." -lumen learning

(I know for sure but what think... hope this helped)

3 0

2 years ago

During science class, while studying mixtures, you mix together table salt and sand. Your teacher challenges you to separate the

olga2289 [7]

The property to be used is sieving. you get a bowl and a sieve when you pour the sand and salt,the salt being the small particle sieve to the bowl while the sand remain on the sieve as residue

7 0

3 years ago

What is the mass number of an ion with 106 electrons, 157 neutrons, and a +1 charge?

il63 [147K]

Answer:

264 g/mol

Explanation:

#electrons equal #protons = 106

Plus 1 charge => m protons = 106 + 1 = 107

Mass number: 107 + 157 = 264 g/mol

5 0

3 years ago

Which materials are typically used as thermal insulators? Check all that apply.

vaieri [72.5K]

Answer : The correct options are, (B) Foam, (C) Ceramic, (D) Wood and (E) Plastic

Explanation :

As we know that the conductor is the material that conduct or transmits the energy or electricity through them and insulator is the material that resist the energy transfer.

There are different types of insulators and conductors which are:

Electrical conductor : It is a type of material that conducts electrons, protons and ions. It conduct electricity. For example : silver, gold, copper, steel, brass, etc.

Thermal conductor : It is a type of material that conducts heat. For example: diamond, silver, gold, etc.

Electrical insulator : It is a type of material in which the electrical charges do not flow freely that means very little amount of electric current flow through them. For example : glass, plastic, rubber, porcelain, pure water, dry paper, dry wood, etc.

Thermal insulator : It is a type of material that reduces the transfer of heat between the object in thermal contact. For example : polystyrene foam, water, wool, plastic, ceramic, wood.

Hence, the materials typically used as thermal insulators are, foam, ceramic, wood and plastic.

5 0

3 years ago

Read 2 more answers