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2 years ago

Molarity, abbreviated M, is defined as the concentration of a solution expressed as moles of solute per liter of

Chemistry

1 answer:

atroni [7]2 years ago

7 0

<h3>Answer:</h3>

5 mL H₂SO₄

<h3>Explanation:</h3>

The equation for the reaction is;

CuO(s) + H₂SO₄(aq)→ CuSO₄(aq)+H₂O(l)

We are given;

Molarity of H₂SO₄ = 4.00 M

Mass of CuO = 1.6 g

We are required to calculate the volume of H₂SO₄

First; we need to determine the number of moles of CuO

Moles = Mass ÷ Molar mass

Molar mass of CuO =79.545 g/mol

Mass of Cu =1.6 g

Moles of CuO = 1.6 g ÷ 79.545 g/mol

= 0.020 moles

Second; we determine the number of moles of H₂SO₄ that reacted with CuO.

From the equation 1 mole of CuO reacts with 1 mole of H₂SO₄

Therefore;

0.020 moles of CuO will react with 0.020 moles H₂SO4

Third; we calculate the volume of H₂SO₄

Molarity is given by dividing the number of moles by volume.

Thus;

Volume = Moles ÷ Molarity

In this case;

Volume = 0.020 moles ÷ 4.00 M

= 0.005 L

But; 1 L = 1000 mL

Therefore; Volume = 5 mL

Hence the volume of H₂SO₄ required to react with CuO is 5 mL

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C. It does not emit electromagnetic radiation.

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Right now, Dark Matter is only a theory. Scientist proposed this to counter some of the strange phenomenon with matter in space.

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2 years ago

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Taya2010 [7]

Answer:

1) potential energy of the bond.

2) Linear

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4) ClF

5) Oxygen

6) Electrolysis

7) Double displacement

Explanation:

As two atoms approach each other in a bonding situation, the potential energy of the bond is minimized as the internuclear distance of the bonding atoms decreases.

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2 years ago

Luis is helping his parents paint a border around the walls of a room. He uses a stencil to repeat the same design on each wall

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Polymerization.

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Polymerization is given by the chemical formula;

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In this scenario, Luis uses a stencil to repeat the same design on each wall to form one long grapevine with a bunch of grapes every foot along its length.

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2 years ago

Consider the solutions, 0.04 m urea [(NH2)2C=O)], 0.04 m AgNO3 and 0.04 m CaCl2. Which has (i) the highest osmotic pressure, (ii

Lana71 [14]

Answer:

i) Highest osmotic pressure: CaCl2

ii) lower vapor pressure : CaCl2

iii) highest boiling point : CaCl2

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The colligative properties depend upon the number of solute particles in a solution.

The following four are the colligative properties:

a) osmotic pressure : more the concentration of the solute, more the osmotic pressure

b) vapor pressure: more the concentration of the solute, lesser the vapor pressure.

c) elevation in boiling point: more the concentration of the solute, more the boiling point.

d) depression in freezing point: more the concentration of the solute, lesser the freezing point.

the number of particle produced by urea = 1

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As concentrations are same, CaCl2 will have more number of solute particles and urea will have least

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2 years ago

How much volume (in cm3) is gained by a person who gains 11.1 lbs of pure fat?

kirill [66]

The density of human fat is $0.918 g/cm^{3}$ . The mass of the pure fat is 11.1 lbs.

First convert mass from lb to g as follows:

1 lb=453.592 g

Thus,

$11.1 lb\rightarrow 11.1\times 453.592 g=5034.875 g$

Density of a substance is defined as mass per unit volume, thus volume can be calculated as:

$V=\frac{m}{d}$

Putting the values,

$V=\frac{5034.875 g}{0.918 g/cm^{3}}=5484.61 cm^{3}$

Therefore, volume gained by person will be $5484.61 cm^{3}$ .

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2 years ago