Interpretation: Three reasons for studying chemistry are to be determined.
Concept Introduction : Chemistry is the branch of science that examines the characteristics, make-up, and structure of substances, as well as the changes they go through, and the energy released or absorbed.
Answer to Problem 8LC
Explaining the natural world
Preparing for a career
Being an informed citizen
Explanation of Solution
Reasons for studying chemistry are:
Explaining the natural world
Preparing for a career
Being an informed citizen
Explaining the natural world:
All objects that can be classified as materials are collectively referred to as matter. Anything with mass and space is matter. Everything around us is formed of matter, including trees, buildings, food, etc. Chemistry is the study of the chemical composition of matter and the transformations that it undergoes.
Consider an example,
If an apple is cut, it turns broom after some time. Chemistry can find the reason behind it. This is because the polyphenol oxidase (PPO) enzymes in apples in the presence of oxygen quickly oxidize the phenolic compounds to o-quinones, which are colorless to secondary products that are brown.
Thus, chemistry explains the various activities occurring in the natural world.
Preparing for a career
A solid foundation in chemistry offers an excellent starting point for advanced studies in many related subjects. Even in times of heavy unemployment, having a degree in chemistry gives an advantage because chemists are among the most highly sought-after scientists.
Being an informed citizen
Governments at the federal and state levels, business, and private foundations all contribute to scientific research funding. The path of research can be affected by financing options. The value of the objective must be weighed against the expense of those who distribute the funds.
Chapter 1 Solutions
EP CHEMISTRY-1-YEAR LICENSE (REALIZE)
- Consider the following Figure 2 and two atoms that are initially an infinite distance apart, x =00, at which point the potential energy of the system is U = 0. If they are brought together to x = x, the potential energy is related to the total force P by dU dx = P Given this, qualitatively sketch the variation of U with x. What happens at x=x? What is the significance of x = x, in terms of the potential energy? 0 P, Force 19 Attraction Total Repulsion x, Distance Figure 2. Variation with distance of the attractive, repulsive, and total forces between atoms. The slope dP/dx at the equilibrium spacing xe is proportional to the elastic modulus E; the stress σb, corresponding to the peak in total force, is the theoretical cohesive strength.arrow_forwardDenote the dipole for the indicated bonds in the following molecules. H3C ✓ CH3 B F-CCl 3 Br-Cl H3C Si(CH3)3 wwwwwww OH НО. HO HO OH vitamin C CH3arrow_forwardFor the SN2 reaction, draw the major organic product and select the correct (R) or (S) designation around the stereocenter carbon in the organic substrate and organic product. Include wedge-and-dash bonds and draw hydrogen on a stereocenter. Η 1 D EN Select Draw Templates More C H D N Erasearrow_forward
- Q9: Explain why compound I is protonated on O while compound II is protonated on N. NH2 NH2 I IIarrow_forwardAN IR spectrum, a 13 CMR spectrum, and a 1 HMR spectrum were obtained for an unknown structure with a molecular formula of C9H10. Draw the structure of this compound.arrow_forwardAN IR spectrum, a 13 CMR spectrum, and a 1 HMR spectrum were obtained for an unknown structure with a molecular formula of C9H10. Draw the structure of this compound.arrow_forward
- (a) What is the hybridization of the carbon in the methyl cation (CH3*) and in the methyl anion (CH3¯)? (b) What is the approximate H-C-H bond angle in the methyl cation and in the methyl anion?arrow_forwardQ8: Draw the resonance structures for the following molecule. Show the curved arrows (how you derive each resonance structure). Circle the major resonance contributor.arrow_forwardQ4: Draw the Lewis structures for the cyanate ion (OCN) and the fulminate ion (CNO). Draw all possible resonance structures for each. Determine which form for each is the major resonance contributor.arrow_forward
- In the following molecule, indicate the hybridization and shape of the indicated atoms. CH3 N CH3 HÖ: H3C CI: ::arrow_forwardQ3: Draw the Lewis structures for nitromethane (CH3NO2) and methyl nitrite (CH3ONO). Draw at least two resonance forms for each. Determine which form for each is the major resonance contributor.arrow_forwardQ1: Draw a valid Lewis structures for the following molecules. Include appropriate charges and lone pair electrons. If there is more than one Lewis structure available, draw the best structure. NH3 Sulfate Boron tetrahydride. C3H8 (linear isomer) OCN NO3 CH3CN SO2Cl2 CH3OH2*arrow_forward
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