3 years ago

Whichof the following is another name for science

Chemistry

1 answer:

snow_lady [41]3 years ago

8 0

Field or discipline
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Vaporization is an endothermic process. Using the terms 'kinetic energy' and 'intermolecular forces', explain how the addition o

Novay_Z [31]

An endothermic process is a process that needs energy in order to proceed. This is the opposite of exothermic which is a process of releasing energy. During an endothermic process, the temperature of the system is increased thus exciting the molecules and allowing them to move faster. This will cause liquid to vaporize.

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4 years ago

Calculate the morality for the following 10.5 kg of Na2 SO4. 10H2O in 18.60 L

Serggg [28]

Answer:

1.75M

Explanation:

The problem deals with finding the molarity of the given compound.

The compound is:

Na₂SO₄.10H₂O

Mass of the compound = 10.5kg = 10500g

Volume of the compound = 18.6L

Molarity is the number of moles of solute in a solution;

Molarity = $\frac{number of moles }{volume}$

Number of moles = $\frac{mass}{molar mass}$

Molar mass of Na₂SO₄.10H₂O = 2(23) + 32 + 4(16) + 10[2(1) + 16]

= 322g/mol

Now;

Number of moles = $\frac{10500}{322}$ = 32.6mole

So;

Molarity = $\frac{32.6}{18.6}$ = 1.75M

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3 years ago

In order to prepare a 0.523 m aqueous solution of potassium iodide, how many grams of potassium iodide must be added to 2.00kg o

Lerok [7]

M = amount of the solute / mass of the solvent

0.523 = x / 2.00

x = 0.523 * 2.00

x = 1,046 moles

molar mass KI = 166.0028 g/mol

Mass = 1,046 * 166.0028

Mass ≈ 173.63 g

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4 years ago

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D) H-H
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3 years ago