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Umnica [9.8K]
3 years ago
5

What is the PH of the solution? ​

Chemistry
1 answer:
Juliette [100K]3 years ago
3 0

Answer:

it the Aquarius of the ph solution

Explanation:

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Which is a postulate of the kinetic-molecular theory?
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  • A gas is composed of a large number of particles called molecules (whether monatomic or polyatomic) that are in constant random motion.
  • Because the distance between gas molecules is much greater than the size of the molecules, the volume of the molecules is negligible.
  • Intermolecular interactions, whether repulsive or attractive, are so weak that they are also negligible.
  • Gas molecules collide with one another and with the walls of the container, but these collisions are perfectly elastic; that is, they do not change the average kinetic energy of the molecules.
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A scientist claims to have discovered an element with 30 protons in its nucleus. He determines it has 60 electrons. Why is his i
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The number of electrons in an atom of an element being always the same

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This is a sub-atomic particle which is negatively charged and is usually

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Electropositive elements donates electrons while electronegative

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Read more about Electrons here brainly.com/question/900457

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2 years ago
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Match the element with its number of valence electrons. Match Term Definition: Helium Aluminum Fluorine Sodium A) 1 B) 2 C) 3 D)
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When limestone (which is principally CaCO3) is heated, carbon dioxide and quick- lime (Cao) are produced by the reaction CaCO3(s
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B.They show that the speaker’s memories come from various senses and seasons.

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1) What is the mass of 6.2 mol of K2CO3?
lorasvet [3.4K]

Answer:

\boxed {\boxed {\sf 856.8648 \ grams \ of \ K_2CO_3}}

Explanation:

To convert from moles to grams, we must find the molar mass.

1. Molar Mass

First, identify the elements in the compound. K₂CO₃ It has potassium, carbon, and oxygen. Find these elements and their masses on the Periodic Table.

  • K: 39.098 g/mol
  • C: 12.011 g/mol
  • O: 15.999 g/mol

Note the subscript of 2 after K and 3 after O. We must multiply oxygen's molar mass by 2, then oxygen's by 3, and add carbon.

  • 2(39.098 g/mol) + 3(15.999 g/mol) + 12.011 g/mol= 138.204 g/mol

2. Convert Moles to Grams

Use the molar mass as a fraction.

\frac {138.204 \ g \ K_2CO_3}{1 \ mol \ K_23CO_3}

Multiply by the given number of moles: 6.2

6.2 \ mol \ K_2CO_3 *\frac {138.204 \ g \ K_2CO_3}{1 \ mol \ K_23CO_3}

6.2  *\frac {138.204 \ g \ K_2CO_3}{1 }

6.2  * {138.204 \ g \ K_2CO_3}

856.8648 \ g \ K_2CO_3

There are <u>856.8648 grams</u> of potassium carbonate in 6.2 moles.

4 0
3 years ago
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