
Concept explainers
(a)
Interpretation: Use of chemistry in physician’s job should be discussed.
Concept Introduction: Chemistry is the study of structure, composition, and properties of matter. It is the part of the physical science which helps to describe and interpret the world. It is the science of atoms/molecules and their transformations.
(a)

Explanation of Solution
Chemistry is included in every activity we do or around us. It plays a significant role in everyone’s lives. It occasionally called as "central science" because it links other branches of science, such as geology, physics, biology, and environmental science.
The physician can diagnose diseases by various tests and tells about its chemical effects on the body. They prescribe medicines for the same so, they use chemistry in their jobs.
(b)
Interpretation: Use of chemistry in lawyer’s job should be discussed.
Concept Introduction: Chemistry is the study of structure, composition and properties of matter. It is the part of the physical science which helps to describe and interpret the world. It is the science of atoms/molecules and their transformations.
(b)

Explanation of Solution
Lawyers are related to the law and justice. They use chemistry in their profession as they identify criminals using the fingerprints. Other tests reports like DNA test, blood tests or post mortem are needed in the cases thus, they use chemistry in their professions.
(c)
Interpretation: Use of chemistry in pharmacist’s job should be discussed.
Concept Introduction: Chemistry is the study of structure, composition, properties of matter is known as chemistry. It is the part of the physical sciences which help to describe and interpret the world. It is the science of atoms/molecules and their transformations.
(c)

Explanation of Solution
Pharmacists studies the nature of drugs and their chemical compositions. Pharmacists served the medicine to patients. So, they use chemistry in their jobs.
(d)
Interpretation: Use of chemistry in artist’s job should be discussed.
Concept Introduction: Chemistry is the study of structure, composition, properties of matter is known as chemistry. It is the part of the physical sciences which help to describe and interpret the world. It is the science of atoms/molecules and their transformations.
(d)

Explanation of Solution
Artists use the knowledge of color composition their art. They make use of chromatography techniques to make different patterns of colors. Thus, they use chemistry in their professions.
(e)
Interpretation: Use of chemistry in photographer’s job should be discussed.
Concept Introduction: Chemistry is the study of structure, composition, properties of matter is known as chemistry. It is the part of the physical sciences which help to describe and interpret the world. It is the science of atoms/molecules and their transformations.
(e)

Explanation of Solution
Photographers make use of chemistry to develop their photographs. This process involves the coating of film with silver bromide followed by the printing of the photo.
(f)
Interpretation: Use of chemistry in farmer’s job should be discussed.
Concept Introduction: Chemistry is the study of structure, composition, properties of matter is known as chemistry. It is the part of the physical sciences which help to describe and interpret the world. It is the science of atoms/molecules and their transformations.
(f)

Explanation of Solution
Farmers are related to agriculture and crops. They use chemistry as they use pesticides and other chemicals to prevent their crops to get damaged from insects. Different processes are used to improve the quality and quantity of the crops. The pH of the soil is checked to know the state of land if it is fit for farming or not.
(g)
Interpretation: Use of chemistry in nurse’s job should be discussed.
Concept Introduction: Chemistry is the study of structure, composition, properties of matter is known as chemistry. It is the part of the physical sciences which help to describe and interpret the world. It is the science of atoms/molecules and their transformations.
(g)

Explanation of Solution
Nurses work in hospitals and clinics. They assist doctors to treat patients. They serve medicine to the patients and take care of the dozes and quantity of medicines. So, they use chemistry in their jobs.
Chapter 1 Solutions
World of Chemistry, 3rd edition
- Using the conditions of spontaneity to deduce the signs of AH and AS Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions A This reaction is always spontaneous, but proceeds slower at temperatures above 120. °C. ΔΗ is (pick one) AS is (pick one) ΔΗ is (pick one) B This reaction is spontaneous except above 117. °C. AS is (pick one) ΔΗ is (pick one) This reaction is slower below 20. °C than C above. AS is |(pick one) ? 18 Ar 1arrow_forwardCalculating the pH at equivalence of a titration Try Again Your answer is incorrect. 0/5 a A chemist titrates 70.0 mL of a 0.7089 M hydrocyanic acid (HCN) solution with 0.4574M KOH solution at 25 °C. Calculate the pH at equivalence. The pK of hydrocyanic acid is 9.21. Round your answer to 2 decimal places. Note for advanced students: you may assume the total volume of the solution equals the initial volume plus the volume of KOH solution added. pH = 11.43] G 00. 18 Ar B•arrow_forwardBiological Macromolecules Naming and drawing the products of aldose oxidation and reduction aw a Fischer projection of the molecule that would produce L-ribonic acid if it were subjected to mildly oxidizing reaction conditions. Click and drag to start drawing a structure. X AP ‡ 1/5 Naor Explanation Check McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessibilarrow_forward
- ● Biological Macromolecules Identifying the parts of a disaccharide Take a look at this molecule, and then answer the questions in the table below it. CH2OH O H H H OH OH OH H H CH2OH H O OH H OH H H H H OH Is this a reducing sugar? Does this molecule contain a glycosidic bond? If you said this molecule does contain a glycosidic bond, write the symbol describing it. If you said this molecule does contain a glycosidic bond, write the common names (including anomer and enantiomer labels) of the molecules that would be released if that bond were hydrolyzed. If there's more than one molecule, separate each name with a comma. Explanation Check O yes X O no ○ yes O no Uarrow_forwardThe aim of the lab is to measure the sodium content from tomato sauce using the Mohr titration method. There are two groups being: Regular Tomato sauce & Salt Reduced tomato sauce QUESTION: State how you would prepare both Regular & Salt reduced tomato sauce samples for chemical analysis using the Mohr titration methodarrow_forwardUsing the conditions of spontaneity to deduce the signs of AH and AS Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions A The reverse of this reaction is always spontaneous but proceeds faster at temperatures above -48. °C. ΔΗ is (pick one) ✓ AS is (pick one) B This reaction is spontaneous except below 114. °C but proceeds at a slower rate below 135. °C. ΔΗ is (pick one) AS is (pick one) ΔΗ is C This reaction is exothermic and proceeds faster at temperatures above -43. °C. (pick one) AS is (pick one) v Х 5 ? 18 Ararrow_forward
- ion. A student proposes the following Lewis structure for the perchlorate (CIO) io : :0: : Cl : - - : :0: ك Assign a formal charge to each atom in the student's Lewis structure. atom central O formal charge ☐ top O ☐ right O ☐ bottom O ☐ Cl ☐arrow_forwardDecide whether these proposed Lewis structures are reasonable. proposed Lewis structure Yes. Is the proposed Lewis structure reasonable? Cl- : 2: :Z: :Z: N—N : 0: C C1: O CO No, it has the wrong number of valence electrons. The correct number is: ☐ No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* ☐ Yes. No, it has the wrong number of valence electrons. The correct number is: ☐ No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* | Yes. No, it has the wrong number of valence electrons. The correct number is: No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* | If two or more atoms of the same element don't satisfy the octet rule, just enter the chemical symbol as many times as necessary. For example, if two oxygen atoms don't satisfy the octet rule, enter "0,0". ☑arrow_forwardUse the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions ΔΗ is (pick one) A This reaction is faster above 103. °C than below. AS is (pick one) ΔΗ is (pick one) B This reaction is spontaneous only above -9. °C. AS is (pick one) ΔΗ is (pick one) C The reverse of this reaction is always spontaneous. AS is (pick one) 18 Ararrow_forward
- Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions A The reverse of this reaction is always spontaneous but proceeds slower at temperatures below 41. °C. ΔΗ is (pick one) AS is (pick one) ΔΗ is (pick one) B This reaction is spontaneous except above 94. °C. AS is (pick one) This reaction is always spontaneous, but ΔΗ is (pick one) C proceeds slower at temperatures below −14. °C. AS is (pick one) Х 00. 18 Ar 무ㅎ B 1 1arrow_forwardDraw the product of the reaction shown below. Ignore inorganic byproducts. + H CH3CH2OH HCI Drawingarrow_forwardplease explain this in simple termsarrow_forward
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