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4 years ago

How does molecular size affect solubility

Chemistry

1 answer:

VashaNatasha [74]4 years ago

4 0

the larger the molecules of the solute are, the larger is their molecular weight and their size.

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If two objects have the same mass, what must be true? choose the correct answer A. They have the same volume B. They are made of

Nataly_w [17]

C. Mass is kind of like a measurement of matter.

7 0

4 years ago

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Dinitrogen pentoxide is used in the preparation of explosives. If 7.93 mol of

Tpy6a [65]

The volume of O₂ produced: 84.6 L

<h3>Further explanation</h3>

Given

7.93 mol of dinitrogen pentoxide

T = 48 + 273 = 321 K

P = 125 kPa = 1,23365 atm

Required

Volume of O₂

Solution

Decomposition reaction of dinitrogen pentoxide

2N₂O₅(g)→4NO₂(g)+O₂ (g)

From the equation, mol ratio N₂O₅ : O₂ = 2 : 1, so mol O₂ :

= 0.5 x mol N₂O₅

= 0.5 x 7.93

= 3.965 moles

The volume of O₂ :

$\tt V=\dfrac{nRT}{P}\\\\V=\dfrac{3.965\times 0.082\times 321}{1.23365}\\\\V=84.6~L$

5 0

3 years ago

Directions: Use the words in the word box to complete the following sentences.

NeX [460]

Explanation:

When the forces acting on an object are balanced , there is no change in the object's motion.

A force acting on a resting object can cause the object to move.

On Earth, gravity pulls all objects toward the ground.

When a force acts in the opposite direction of another force, the forces counteract each other.

More than one force acting on a falling object can reduce its downward acceleration

Air resistance is caused by molecules of air pushing against a moving object

7 0

3 years ago

Instruction

valkas [14]

Answer:

A: object 1

B: object 2

C: object 1

D: object 1

Explanation:

4 0

3 years ago

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Determine the molar mass of Cao

e-lub [12.9K]

Answer:

Molar mass of CaO

(40 + 16)g

= 56g

hope it helps you

6 0

3 years ago