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Sergeu [11.5K]
3 years ago
6

What is the mass (in grams )for 88.624moles of silver (Ag )? ( round your answer to a whole number (no decimal )

Chemistry
1 answer:
Andre45 [30]3 years ago
4 0
107.8682 grams are in one mole

9559.7 grams for 88.624 moles

9,600 grams.
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Compare the diameter of the moon to the diameter of the Earth
hichkok12 [17]

Answer:

Ok Hold up. I will answer after I think of question

Explanation:

6 0
2 years ago
When two aqueous solutions are combined the reaction forms a solid that settles out of solution. What is this solid called?
Rama09 [41]
During the chemical reaction, the solid substance that is insoluble formed during the combination of two aqueous solutions is called a precipitate. The answer is letter C. The precipitation reaction occurs when a salt is formed in the reaction of solutions with salts. 
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3 years ago
For the solution resulting from dissolved 0.32 g of naphthalene (C10H8) in 25 g of benzene (C6H6) at temperature of 26.1°C, calc
grandymaker [24]

Answer:

See explanation

Explanation:

Number of moles of naphthalene = 0.32g/128.1705 g/mol = 0.0025 moles

Molality = number of moles/ mass of Solvent in kilograms

Molality = 0.0025/0.025 Kg

Morality = 0.1 m

But

∆T= K × i × m

Where ∆T = boiling point elevation

i= number of particles (this is equal to 1 because naphthalene is molecular and not ionic)

m= molality of naphthalene = 0.1 m

K= boiling point elevation constant = 5.12 °C/m

∆T= 5.12 °C/m ×0.1 = 0.512°C

For freezing point depression

∆T= K× i × m

Where ∆T= freezing point depression

i= number of particles (this is equal to 1 because naphthalene is molecular and not ionic)

m= molality of naphthalene = 0.1 m

K= freezing point depression constant = 2.67 °C/m

∆T= 2.67 °C/m ×0.1 = 0.267°C

From Raoult's law;

∆P = XBPA°

Where;

∆P = vapour pressure lowering

XB = mole fraction of solute

PA° = vapour pressure of pure solvent

Number of moles of solvent = mass/molar mass = 25g/ 78 g/mol= 0.3205 moles

Total number of moles = number of moles of solute + number of moles of solvent = 0.0025 moles + 0.3205 moles = 0.323 moles

Mole fraction of solute = 0.0025 moles/0.323 moles = 0.0077

Vapour pressure of benzene = 100 torr

Therefore;

∆P = 0.0077 × 100torr = 0.77 torr

Hence;

∆P = 0.77 torr

5 0
3 years ago
In general, what is the relationship between temperature and the reaction rate of a chemical reaction? A. When temperature incre
riadik2000 [5.3K]

Answer:

A. When temperature increases, the number and energy of collisions between particles increases, which increases the rate of the reaction.

Explanation:

The reaction rate measures the speed with which a reaction proceeds. Based on the collision theory of reaction rates, the rate of a given reaction depends on the number of collisions per time and how successful or effective the collisions are.

Reaction rate in view of the collision theory is very related to concentration and temperature. Both properties are directly proportional to the rate of a reaction.

As temperature increase, the rate of the reaction increases due to the number of effective collisions and the energy of between colliding particles.

3 0
3 years ago
List two examples of items that undergo sublimation
umka21 [38]

Answer:

Examples of solids that sublime are dry ice (solid carbon dioxide), iodine, arsenic, and naphthalene (the stuff mothballs are made of).

Explanation:

8 0
3 years ago
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