Concept explainers
Videos
(a)
Interpretation:
Whether
Concept Introduction:
The composition of a chemical compound can be presented in a very precise was with the use of chemical formula. Chemical formula uses
(a)
Explanation of Solution
Given chemical formulas are
Total number of atoms in
Total number of atoms in
On comparing the total number of atoms between the two chemical formulas, it is found that they both contain same number of atoms.
(b)
Interpretation:
Whether
Concept Introduction:
The composition of a chemical compound can be presented in a very precise was with the use of chemical formula. Chemical formula uses chemical symbols of the elements that is present in the compound and numerical subscripts that represent how many number of atoms of each element is present in the compound.
(b)
Explanation of Solution
Given chemical formulas are
Total number of atoms in
Total number of atoms in
On comparing the total number of atoms between the two chemical formulas, it is found that
(c)
Interpretation:
Whether
Concept Introduction:
The composition of a chemical compound can be presented in a very precise was with the use of chemical formula. Chemical formula uses chemical symbols of the elements that is present in the compound and numerical subscripts that represent how many number of atoms of each element is present in the compound.
(c)
Explanation of Solution
Given chemical formulas are
Total number of atoms in
Total number of atoms in
On comparing the total number of atoms between the two chemical formulas, it is found that they both contain the same number of atoms.
(d)
Interpretation:
Whether
Concept Introduction:
The composition of a chemical compound can be presented in a very precise was with the use of chemical formula. Chemical formula uses chemical symbols of the elements that is present in the compound and numerical subscripts that represent how many number of atoms of each element is present in the compound.
(d)
Explanation of Solution
Given chemical formulas are
Total number of atoms in
Total number of atoms in
On comparing the total number of atoms between the two chemical formulas, it is found that
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Chapter 1 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- Apply the formula for the differences in electronegativities, for the following molecules, and define whether they are polar covalent, nonpolar covalent or ionic. Taking into account that: Non-polar covalent: greater than or equal to 0 but less than 0.7 Polar covalent: greater than or equal to 0.7 but less than 1.7 ionic: greater than 1.7 A)NO B)KCI C)F2 C)AsOarrow_forwardDefine the following terms: a. glycoside b. disaccharide c. oligosaccharide d. polysaccharide e. glycosidic linkagearrow_forwardAccording to chemist John Dalton, if one mole of nitrogen is combined with three moles of hydrogen to form one mole of ammonia (knowing that nitrogen, with an atomic number of 7, has an atomic mass of 14, and hydrogen, with an atomic number of 1, has an atomic mass of 1), then this compound will have an atomic weight (or molecular mass) of: 14 grams per mole (14 daltons) 17 grams per mole (17 daltons) 20 grams per mole (20 daltons) 22 grams per mole (22 daltons) 43 grams per mole (43 daltons)arrow_forward
- Rank the following chemical bonds in order of increasing polarity.a. nonpolar covalent b. ionic c. polar covalentarrow_forwardThe PH formula is given as PH=-log(H+). The H+ is the number of free ions of hydrogen. A seven PH is considered neutral. Discuss what having a low PH and a high PH means. What does a 12 PH mean? How about a 2? Which is more caustic? Is either a good thing at extremely high or low values? Explain fully as to what a PH means to you and what you use it for.arrow_forwardRefer to the following titration curve below: 13 12 11 10 7 6 5 4 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Volume of Titrant / mL - Unknown Acid 0.10 mol/L - titrant = NaOH 0.1 mol/L What is the isoelectric point of histidine, according to the titration curve? Input your answer until the first decimal point. 2. 9,arrow_forward
- Determine the chemical formula for the following molecules by counting the Carbon, Hydrogen and Oxygen atoms. Determine if the molecule is a carbohydrate by checking the ratio of atoms. 5. Ho C 1 H-C-OH H-C-OH H-C-OH CH₂OH 6. CH₂OH HO-C=0 [ H-C-OH H-C-OH 1 H-C-DH I H - COH I H-C-H I H Chemical formula Carbohydrate ? Chemical formula Carbohydrate ?arrow_forwardSolid iron(II) fluoride (FeF2, Ksp= 2.36 x 10-6) is dissolved in water. If 8.1 x 10-3 mol L-1 of iron(II) ion is found to be in solution. Is the solution saturated, unsaturated, desaturated or supersaturated.arrow_forwardFive fatty acids' classifications are shown below. Which one would you expect to have the lowest melting point? 1. 1. 18:149 2. 18:346,9,12 3. 20:3 45,8,1 4. 20:1413 5. 22:1413 2. How many L of solution do you need to make a 25 (w/v) % Nacl solution using 50.1 g of NaCi?arrow_forward
- Define the following terms: a. hydrocarbon b. hydrophilic c. hydrophobic d. functional group e. R grouparrow_forwardIdentify the conjugate acid-base pairs in the following reactions: HNO2(aq) + H2O(l) → NO2 – (aq) + H3O+(aq) _______ ______ _________ ________ CH3NH2 + H2O(l) → CH3NH3+ + OH – _______ ________ ________ _________arrow_forwardDetermine the chemical formula for the following molecules by counting the Carbon, Hydrogen and Oxygen atoms. Determine if the molecule is a carbohydrate by checking the ratio of atoms. 5. Ho C H-C-OH I H-C-OH H-C-OH [ CH₂OH 6. CH₂OH HO-C=O H-C-OH 1 H-C-OH 1 H-C-DH 1 H - COH I H-C-H I H Chemical formula Carbohydrate? Chemical formula Carbohydrate ?arrow_forward
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