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2 years ago

Identify how many of the original parent nuclei remain after three half-lives

Chemistry

1 answer:

Nutka1998 [239]2 years ago

3 0

Answer:

yes

Explanation:

i did the test

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How would you distinguish benzoic acid and benzyl alcohol by their infrared spectra?

Vadim26 [7]

The OH peaks in the IR spectra of benzyl alcohol and benzoic acid should be compared and contrasted.

<h3>What is the IR spectra of Benzoic acid?</h3>

The right-hand portion of the infrared spectrum of benzoic acid, between wavenumbers 1500 and 400 cm-1, is referred to as the fingerprint region.

It results from a special combination of intricately overlapping vibrations of the atoms within the benzoic acid molecule.

<h3>What is the IR spectra of Benzyl alcohol?</h3>

A C-Cl bond is frequently shown by a peak at 700.

There are a few more peaks at 1500 that are directed at a C=C bond.

<h3>What is IR spectra?</h3>

The percent transmittance (or absorbance) of the radiation through the molecule against the radiation's wave number forms the IR spectrum.

Learn more about IR spectra here:

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1 year ago

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Why doesn’t the moon move away from earth

Leni [432]

The earth has the moon captured in its gravity. this keeps the moon in an elliptical orbit

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2 years ago

A sample of propane(c3h8)has 3.84x10^24 H atoms.

deff fn [24]

Answer:

A) 14. 25 × 10²³ Carbon atoms

B) 34.72 grams

Explanation:

1 molecule of Propane has 3 atoms of Carbon and 8 atoms of Hydrogen.

The sample has 3.84 × 10²⁴ H atoms.

If 8 atoms of Hydrogrn are present in 1 molecule of propane.

3.84 × 10²⁴ H atoms are present in

$\mathfrak{ \frac{3.8 }{8} \times 10 ^{24}}$

= 4.75 × 10²³ molecules of Propane.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

No. of Carbon atoms in 1 molecule of propane = 3

=> C atoms in 4.75× 10²³ molecules of Propane = 3 × 4.75 × 10²³

= 14.25 × 10²³ 

________________________________________

Gram Molecular Mass of Propane(C3H8)

= 3 × 12 + 8 × 1

= 36 + 8

= 44 g

1 mole of propane weighs 44g and has 6.02× 10²³ molecules of Propane.

=> 6.02 × 10²³ molecules of Propane weigh = 44 g

=> 4. 75 × 10²³ molecules of Propane weigh =

$\mathsf{ \frac{44 }{6.02 \times {10}^{23} } \times 4.75 \times {10}^{23} }$

$\mathsf{ = \frac{44 }{6.02 \times \cancel{{10}^{23} }} \times 4.75 \times \cancel{ {10}^{23}} }$

$\mathsf{ = \frac{44 }{6.02 } \times 4.75 }$

= 34.72 g

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2 years ago

Can someone please help me with this?

yaroslaw [1]

Answer:

Lonic.an electron will be transferred from potassium to the chlorine atom

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2 years ago

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With no difference in temperatures and 100% humidity, will it rain? Why or Why not?

Artyom0805 [142]

Not necessarily, rain needs some mechanism such as instability of vertical air movement..

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3 years ago