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3 years ago

11

The rate of dissolution is affected by all of the following except the A. agitation of solute within the solvent. B. surface are

a of the solute. C. temperature of the solute. D. amount of the solute dissolved.

1 answer:

laila [671]3 years ago

8 0

Answer:

B

Explanation:

cause surface area of solute is not necessary for solution

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Titration of a 24.0 mL sample of acid rain required 1.8 mL of 0.0882 M NaOH to reach the end point. If we assume that the acidit

wolverine [178]

Answer:

The concentration of sulfuric acid is 0.0033 M

Explanation:

Step 1: Data given

Volume of the sulfuric acid (H2SO4) = 24.0 mL = 0.024 L

Volume of NaOH = 1.8 mL = 0.0018 L

Molarity of NaOH = 0.0882 M

Step 2: The balanced equation

H2SO4 + 2NaOH → Na2SO4 + 2H2O

Step 3: Calculate the concentration of H2SO4

b*Ca*Va = a * Cb * Vb

⇒b = the coefficient of NaOH = 2

⇒Ca = the concentration of H2SO4 = TO BE DETERMINED

⇒Va = the volume of H2SO4 = 0.024 L

⇒a = the coefficient of H2SO4 = 1

⇒Cb = the concentration of NaOH = 0.0882 M

⇒Vb = the volume of NaOH = 0.0018 L

2* Ca * 0.024 = 1 * 0.0882 * 0.0018

0.048 * Ca = 0.00015876‬

Ca = 0.0033 M

The concentration of sulfuric acid is 0.0033 M

3 0

3 years ago

Calculating kinetic energy 1200kg car moving at 10

valkas [14]

Answer:

60000J

Explanation:

Given parameters:

Mass of car = 1200kg

Speed = 10m/s

Unknown:

Kinetic energy = ?

Solution:

The kinetic energy is given as:

Kinetic energy = $\frac{1}{2}$ m v²

Now insert the parameters and solve;

m is the mass

v is the velocity

Kinetic energy = $\frac{1}{2}$ x 1200 x 10² = 60000J

6 0

3 years ago

What is formed when water chemically combines with carbon dioxide

solong [7]

When water chemically combines with carbon dioxide, a Carbonic acid is formed.

<u>Explanation</u>:

Carbon dioxide responds with water in a solution to form a weak acid, carbonic acid. Carbonic acid disassociates into hydrogen particles and bicarbonate particles. The hydrogen particles and water respond with the most basic minerals modifying the minerals.

Carbon dioxide and the other atmospheric gases disintegrate in surface waters. Dissolved gases are in equilibrium with the gas in the atmosphere. Carbon dioxide responds with water in a solution to form the weak acid, carbonic acid. Carbonic acid disassociates into hydrogen particles and bicarbonate particles.

The hydrogen particles and water respond with the most basic minerals altering the minerals. The results of enduring are prevalently clays and soluble particles, for example, calcium, iron, sodium, and potassium. Bicarbonate particles additionally remain in solution; a remnant of the carbonic acid that was utilized to weather the rocks.

5 0

3 years ago

Name a device or other object whose major purpose is to convert

Alenkinab [10]

Answer:

Storage battery oe cell

Explanation:

The storage battery or cell is a device that coverts chemical energy into light energy when required.

During charging of battery, there is some chemical changes in the battery and absorb energy. The absorbed energy is converted into electrical energy when connected to an external load.

Hence, the correct answer is "Storage battery or cell".

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3 years ago

Energy released from atomic reactions is called?

erma4kov [3.2K]

The answer is nuclear energy

7 0

3 years ago