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Mashcka [7]
3 years ago
8

What is the pH of a solution if the [H⁺] = 4.2 x 10⁻¹¹ M

Chemistry
1 answer:
liraira [26]3 years ago
3 0

Answer:

10.4

Explanation:

-log(4.2x10^-11) = 10.37 = 10.4

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Because evaporations
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22.4 L of hydrogen is taken in a cylinder at zero degree Celsius and at one atm. This gas is transferred to a cylinder of 11.2 L
geniusboy [140]

Answer:

  2 Atm; 2.016 g

Explanation:

Changing the volume without changing the temperature or mass only changes the pressure. Volume and pressure are inversely proportional so halving the volume will double the pressure.

P = 1 Atm, T = 0 °C are "standard" temperature and pressure (STP). The volume of 1 mole of gas is 22.4 L under these conditions. That means the amount of hydrogen gas in the cylinder is 1 mole, so has a mass of 2.016 g.

After the volume reduction, the pressure is 2 Atm, and the mass remains 2.016 g.

7 0
3 years ago
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What is a liquid mixture whose parts are evenly blended?.
Eva8 [605]

Answer:

A homogeneous mixture is a type of mixture in which the individual substances are evenly mixed.

Explanation:

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2 years ago
4. Which atomic particles are found inside the nucleus of an atom?
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Answer:

the atomic particles in the necluse are called ions which are positive and negive charged atoms

Explanation:

6 0
3 years ago
How many moles of carbon in 6.64 moles of CCl2 F
Bad White [126]

Answer: 6.64 moles of carbon.

Explanation:

Given data:

Number  of moles of C = ?

Number of moles of CCl₂F₂ = 6.64 mol

Solution:

In one mole of CCl₂F₂ there is one mole of carbon two moles of chlorine and two moles of fluorine are present.

In 6.6 moles of CCl₂F₂ :

Moles of carbon = 6.64 × 1 = 6.64 moles of carbon.

Moles of chlorine = 6.64× 2 = 13.28 moles of chlorine

Moles of fluorine = 6.64× 2 = 13.28 moles of fluorine

Read more on Brainly.com - brainly.com/question/15602143#readmore

3 0
3 years ago
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