Words that includes names, places, geometric shapes and finally units of measure.
Answer:
Organ systems & their main functions
Explanation:
The chest bones Rib Cage & spine - protects the vital organs (heart, lung,liver) from injury & provides structural support for body.
Skin is the body's first line of defense & keeps the body warm. In case of any invading infection, fever - body temperature rise fights it.
Circulatory system (containing heart) & its body fluid blood - transports nutrients and oxygen to body cells
Endocrine system regulates growth, produces hormones - that target organs via bloodstream.
In regards to the given question, option “1” is the correct
option. When propane is burnt to complete combustion, it results in the
formation of two completely different substances. It actually forms a mixture
of water vapour and carbon dioxide. When NaCl or sodium chloride is melted, it
does not result in the formation of any new substance and so option “2” cannot
be the correct answer. With regards to deposition of carbon dioxide and solidification
of water, no new substance gets formed and so can be neglected as the answer to
the question.
Answer:
The chemical shift (δ) for CHBr₃ proton = <u>6.88 ppm</u>
Explanation:
In NMR spectroscopy, Chemical shift (δ) is expressed in parts per million (ppm) and is given by the equation:
....equation (1)
Given: Observed frequency: ν₁ = 2065 Hz,
Spectrometer frequency: ν'₁ = 300 MHz, ν'₂ = 200 MHz
To calculate the chemical shift (δ) for the given CHBr₃ proton, we use the equation (1)
Since in NMR spectroscopy, chemical shift is a <em>field independent scaling</em>. Thus the value of the chemical shift of a given proton, such as CHBr₃ proton, is <u><em>independent of the magnetic field strength of the spectrometer.</em></u>
<u>So the value of chemical shift of a given proton remains same when measured with a 300 MHz and 200 MHz NMR spectrometer.</u>
<u>Therefore, the chemical shift (δ) for CHBr₃ proton = 6.88 ppm</u>
