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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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1 mol of titanium,<br> Ti, is 47.88 g is that true?
Ganezh [65]

Answer: True.

Explanation:

Molar mass is the mass of a given substance divided by the amount of that substance, measured in g/mol. For example, the atomic mass of titanium is 47.88 amu or 47.88 g/mol. In 47.88 grams of titanium, there is one mole, or 6.022 x 1023 titanium atoms.

The characteristic molar mass of an element is simply the atomic mass in g/mol. However, molar mass can also be calculated by multiplying the atomic mass in amu by the molar mass constant (1 g/mol). To calculate the molar mass of a compound with multiple atoms, sum all the atomic mass of the constituent atoms.

For example, the molar mass of NaCl can be calculated for finding the atomic mass of sodium (22.99 g/mol) and the atomic mass of chlorine (35.45 g/mol) and combining them. The molar mass of NaCl is 58.44 g/mol.

8 0
3 years ago
Food is important for growing and repairing tissues in the body. By which process is food broken down into nutrient molecules?
yKpoI14uk [10]

B.) Digestion

when food passes through the gastrointestinal tract, the food get mixed with digestive juices which break down large food molecules. The body absorbs these molecules/nutrients through the small intestine and enter your blood stream. Your blood stream delivers these nutrients to the rest of the body.

5 0
3 years ago
A real gas is in a regime in which it is accurately described by the ideal gas equation of state. 27.1 g of the gas occupies 50.
Rom4ik [11]

Answer:

Argon

Explanation:

Given data

  • Mass (m): 27.1 g
  • Volume (V): 50.0 L
  • Pressure (P): 0.500 atm
  • Temperature (T): 449 K

We can find the molar mass (M) of the gas using the ideal gas equation.

P × V = n × R × T

P × V = m/M × R × T

M = m × R × T/P × V

M = 27.1 g × (0.08206 atm.L/mol.K) × 449 K/ 0.500 atm × 50.0 L

M = 39.9 g/mol

If the gas is monoatomic, the one with a molar mass of 39.9 g/mol is argon.

5 0
3 years ago
Which is a key component of the energy molecule ATP?
BlackZzzverrR [31]
Phosphorus hope this helps :)
7 0
3 years ago
Read 2 more answers
The o-to-o-to-o bond angle in an ozone (o3) molecule is not exactly 120° because
maksim [4K]
There is an extra pair of electrons bound to the central oxygen. This set of electrons repels against the other electrons surrounding the outside oxygen molecules, compressing the bond angle more than if another atom were present in its place. The actual angle size is around 116 degrees, noticeably smaller than the 120 degrees present in a trigonal planar structure.
5 0
3 years ago
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