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Norma-Jean [14]
3 years ago
5

A child sits on a partially filled balloon and decreases the volume by half. What happens to the pressure inside of the balloon?

Chemistry
2 answers:
nordsb [41]3 years ago
3 0
The pressur in side increases alot because the air has gon down and the temp will increse
ella [17]3 years ago
3 0

Answer:

The pressure inside of the balloon increases by half

Explanation:

We can think of the balloon as a container of air ,which is a gas with a determinate volume and pressure.

According to <em>Boyle's law</em><em> </em>the volume of a gas is inversely proportional to its pressure.

P=\frac{1}{V}

For example, if a balloon volume is 3 liters  and the pressure inside the balloon 20 pascal and a man inflates the balloon up to 6 liters the pressure inside the balloon now is 10 pascal.

When a tank with 40 liters of nitrogen and 100 pascal of inner pressure is  compressed to 200 pascal of pressure, the volume goes down to 20 liters

So  when the volume increases the pressure decreases and vice versa

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Sulfuric acid (H2SO4) has a molar mass of 98.1 g/mol. How many oxygen atoms are found in 75.0 g of H2SO4?
nekit [7.7K]

Answer:

18.33 ×10²³ atoms

Explanation:

Given data:

Molar mass of sulfuric acid = 98.1 g/mol

Mass of sulfuric acid = 75.0 g

Number of of oxygen atom present = ?

Solution:

Number of moles of sulfuric acid:

Number of moles = mass/molar mass

Number of moles = 75.0 g/ 98.1 g/mol

Number of moles =0.761 mol

one mole of  sulfuric acid  contain four mole of oxygen atom.

0.761 mol × 4 = 3.044 mol

1 mole = 6.022×10²³ atoms of oxygen

3.044 mol ×  6.022×10²³ atoms of oxygen / 1mol

18.33 ×10²³ atoms

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