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2 years ago

How many total moles of ions are released when each of the following dissolves in water?

Chemistry

1 answer:

bonufazy [111]2 years ago

7 0

2.202 moles of ions are released when samples dissolves completely in water.

<h3>What Causes Potassium to Explode in Water?</h3>

Chemists have long believed that throwing a lump of alkali metal into water, a time-honored technique still conducted by some lecturers and many chemical thrill seekers, generates an explosion because the metal dissolves, releasing high heat and transferring electrons to the water. The dissolving step also produces steam and makes hydroxide ions and hydrogen, which can be burnt to increase the process's energy.

They understood that the steam and hydrogen produced early in the reaction should form a buffer layer over the metal surface, preventing water from reacting further.

learn more about Potassium refer

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sergeinik [125]

Volume of room = $7.2 m \times 5.8 m \times 3.9 m$

= $162.864 m^{3}$

Now, according to conversion factor, convert 6,400 mg to micrograms

Since, 1 mg is equal to 1000 microgram.

Therefore, 6,400 mg = $6,400 \times 1000$

= 6,400,000 micrograms of acetone.

To calculate concentration of acetone, divide volume and evaporated amount of acetone in micrograms.

Thus,

Concentration of acetone = $\frac{6,400,000 microgram}{162.864 m^{3}}$

= 39296.5910 microgram per cubic meter or $3.92\times 10^{4} \mu g/m^{3}\simeq 4.0\times 10^{4} \mu g/m^{3}$

Hence, concentration of acetone is equal to $4.0\times 10^{4} \mu g/m^{3}$

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3 years ago

What is happening when an oxygen molecule is formed from two separate oxygen atoms?

Pepsi [2]

They share four electrons, two from each oxygen atom

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My name is Ann [436]

Answer:

Explanation:

An isotope is a form of a chemical element whose atomic nucleus contains a specific number of neutron s, in addition to the number of proton s that uniquely defines the element. The nuclei of most atom s contain neutrons as well as protons

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