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Vinvika [58]
3 years ago
8

Explain your thoughts on whether or not using solely IR is a good method to make positive IDs of chemicals.

Chemistry
1 answer:
Fed [463]3 years ago
6 0

Answer:

No, IR should not soely be used to identify molecules

Explanation:

IR is a method that identifies the functional groups in a molecule by deducing the frequency of stretching and vibration of bonds. Each peculiar type of bond has a frequency for the vibration of each bond represented on the IR spectrum.

However, one method is never enough to identify a compound. A combination of methods must always be used to clear up ambiguities arising from overlapping IR frequencies. Also,  interpretation of the nuanced peaks of the fingerprint region in IR spectra is quite challenging and only gives a fair idea of the functional groups present in the compound.

Therefore other methods such as NMR, UV-VISIBLE etc should also be involved in the identification of compounds.

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Explain why the air in Earth's atmosphere is a mixture, not a compound. Brainiest offered need it by 6:45!!!
Georgia [21]

Answer:

air is not a mixture because of scientists freezing it and finding different liquids, it is a mixture because the compounds that make up air e.g. oxygen (o2), Carbon dioxide (co2) and the most important Nitrogen which is an element and makes up 78.09% of air are not chemically bound in the way that compounds are

Explanation:

8 0
3 years ago
What is the molarity of a NaOH solution if 15.0 mL of the solution is neutralized by 38.5 mL 0.150 M H3PO4 solution?
wlad13 [49]
The solution for this problem is:
Look for the moles of NaOH which is 0.0385 L x 0.150 M = 0.00578 
H3PO4 + 3 NaOH = Na3PO4 + 3 H2O 
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M of H3PO4 = 0.00193 mol / 0.0150 L= 0.128 is the molality we are looking for in this problem.
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3 years ago
B.__________________ Properties of elements repeat in a regular way as the atomic numbers increase.
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Periodic properties
8 0
3 years ago
What is graphite and what do you use it for?
rjkz [21]
Because it is a solid material, it is known as a dry lubricant. This is useful in applications where “wet” lubricants, such as oil, cannot be used<span>. </span>Graphite<span> is the only non-metal element that is a good conductor of electricity. Natural </span>graphite<span> is </span>used <span>mostly in what are called refractory applications.</span>
3 0
4 years ago
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Which of these solids are most likely amorphous solids? Select all that apply. Rubber sugar plastic candle wax graphite glass.
Ostrovityanka [42]

The solids are characterized as amorphous and crystalline solids based on the arrangement of atoms. The solids that are amorphous are rubber, plastic, candle wax, and glass.

<h3>What are amorphous solids?</h3>

The solids have the arrangement of atoms in the lattice. The solids with an appropriate arrangement of atoms are crystalline solids. For example, sugar, graphite.

The solids with irregular arrangements of atoms in the lattice are amorphous solids. For example, glass, rubber.

Thus, the solids that are amorphous in nature are rubber, plastic, candle wax, and glass.

Learn more about amorphous solids, here:

brainly.com/question/4626187

3 0
3 years ago
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