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bija089 [108]
3 years ago
7

TRUE FALSE? The MOLE is a unit in Chemistry that serves as a bridge between the ATOMIC and MACROSCOPIC worlds?​

Chemistry
2 answers:
Vanyuwa [196]3 years ago
7 0

Answer:

True

Explanation:

A mole is defined as 6.02214076 × 1023 of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.

BlackZzzverrR [31]3 years ago
7 0
Trueeeeeeeee!!!!!!!!!!!!
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How many grams are in 0.39 moles of water
Shtirlitz [24]

Answer:   7.025959200000001

Explanation:

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2 years ago
If 190dm of hydrogen gas collected at 20°c and 760mmHg .Calculate it's volume at stp (standard pressure=760mmHg
Andrei [34K]

Answer:

177.1 L

Explanation:

The excersise can be solved, by the Ideal Gases Law.

P . V = n . R . T

In first step we need to determine the moles of gas:

We convert T° from, C° to K → 20°C + 273 = 293K

We convert P from mmHg to atm → 760 mmHg = 1atm

1Dm³ = 1L → 190L

We replace: 190 L . 1 atm = n . 0.082 . 293K

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We can also make a rule of three:

At STP conditions 1 mol of gas occupies 22.4L

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3 0
3 years ago
Sodium hydroxide (NaOH) and elemental sodium (Na)
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Answer:

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6 0
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(does this belong in chemistry?)


anyways, the parent was most likely a kid who wanted privacy. they wanted something so they are giving it to their kids.
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6 0
3 years ago
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