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Neporo4naja [7]
3 years ago
5

What does diatomic element mean and what exactly does it do?

Chemistry
1 answer:
musickatia [10]3 years ago
5 0
Diatomic<span> molecules are molecules composed of only two atoms, of the same or different chemical </span>elements<span>.</span>
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The sound wave will Slow Down
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3 years ago
Define Acid dissociation constant constant
stiks02 [169]

Answer:

An acid dissociation constant, K a, (also known as acidity constant, or acid-ionization constant) is a quantitative measure of the strength of an acid in solution. It is the equilibrium constant for a chemical reaction ↽ − − ⇀ − + + known as dissociation in the context of acid–base reactions.

Explanation:

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3 years ago
When 70.4 g of benzamide (C7H7NO) are dissolved in 850. g of a certain mystery liquid X, the freezing point of the solution is 2
Arlecino [84]

Answer:

1.62

Explanation:

From the given information:

number of moles of benzamide  =\dfrac{70.4 \ g}{121.14 \ g/mol}

= 0.58 mole

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= \dfrac{0.58 }{0.85 }

= 0.6837

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\mathbf {dT  = l   \times  k_f  \times m}

where;

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l = Van't Hoff factor = 1

kf = freezing constant of the solvent

∴

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kf = 2.7 °C/ 0.6837m

kf = 3.949 °C/m

number of moles of NH4Cl = \dfrac{70.4 \ g}{53.491 \  g /mol}

= 1.316 mol

The molality = \dfrac{1.316 \ mol}{0.85 \ kg}

= 1.5484

Thus;

the above kf value is used in determining the  Van't Hoff factor for  NH4Cl

i.e.

9.9 = l × 3.949 × 1.5484 m

l = \dfrac{9.9}{3.949 \times 1.5484 \ m}

l = 1.62

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2 years ago
How many moles are found in a 100.0-g sample of CuF2?
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100.0 g CuF2 ( 1 mol / 101.543 g) = 0.98 mol CuF2</span>
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3 years ago
Which one of these statements best describes what a scientist is
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Which of what statements
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