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(a)
Interpretation:
Whether from the number of moles of each type of atom in a given sample of the compound the molecular formula can be obtained or not is to be explained. Also, a road map is to be drawn if the molecular formula can be obtained.
Concept introduction:
The molecular formula describes the chemical symbols and numeric subscripts indicating the exact number of atoms comprising the whole chemical compound. The molecular formula does not suggest about the
The empirical formula describes the simplest whole-integer ratio of atoms of the chemical compound. The molecular formula can either be similar to empirical formula otherwise it can be the multiple of the empirical formula.
(b)
Interpretation:
Whether from the mass
Concept introduction:
The molecular formula describes the chemical symbols and numeric subscripts indicating the exact number of atoms comprising the whole chemical compound. The molecular formula does not suggest about the chemical bonding of that particular compound.
The empirical formula describes the simplest whole-integer ratio of atoms of the chemical compound. The molecular formula can either be similar to empirical formula otherwise it can be the multiple of the empirical formula.
The expression to calculate the mass of an element from the mass
The expression for the calculation of the number of moles is as follows:
(c)
Interpretation:
Whether from the mass
Concept introduction:
The molecular formula describes the chemical symbols and numeric subscripts indicating the exact number of atoms comprising the whole chemical compound. The molecular formula does not suggest about the chemical bonding of that particular compound.
The empirical formula describes the simplest whole-integer ratio of atoms of the chemical compound. The molecular formula can either be similar to empirical formula otherwise it can be the multiple of the empirical formula.
The expression to calculate the mass of an element from the mass
The expression for the calculation of the number of moles is as follows:
(d)
Interpretation:
Whether from the empirical formula and mass
Concept introduction:
The molecular formula describes the chemical symbols and numeric subscripts indicating the exact number of atoms comprising the whole chemical compound. The molecular formula does not suggest about the chemical bonding of that particular compound.
The empirical formula describes the simplest whole-integer ratio of atoms of the chemical compound. The molecular formula can either be similar to empirical formula otherwise it can be the multiple of the empirical formula.
(e)
Interpretation:
Whether from the structural formula the molecular formula can be obtained or not is to be explained. Also, a road map is to be drawn if the molecular formula can be obtained.
Concept introduction:
The molecular formula describes the chemical symbols and numeric subscripts indicating the exact number of atoms comprising the whole chemical compound. The molecular formula does not suggest about the chemical bonding of that particular compound.
The empirical formula describes the simplest whole-integer ratio of atoms of the chemical compound. The molecular formula can either be similar to empirical formula otherwise it can be the multiple of the empirical formula.
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Chapter 3 Solutions
Chemistry The Molecular Nature Of Matter And Change 9th
- Five isomeric alkenes. A through each undergo catalytic hydrogenation to give 2-methylpentane The IR spectra of these five alkenes have the key absorptions (in cm Compound Compound A –912. (§), 994 (5), 1643 (%), 3077 (1) Compound B 833 (3), 1667 (W), 3050 (weak shoulder on C-Habsorption) Compound C Compound D) –714 (5), 1665 (w), 3010 (m) 885 (3), 1650 (m), 3086 (m) 967 (5), no aharption 1600 to 1700, 3040 (m) Compound K Match each compound to the data presented. Compound A Compound B Compound C Compound D Compoundarrow_forward7. The three sets of replicate results below were accumulated for the analysis of the same sample. Pool these data to obtain the most efficient estimate of the mean analyte content and the standard deviation. Lead content/ppm: Set 1 Set 2 Set 3 1. 9.76 9.87 9.85 2. 9.42 9.64 9.91 3. 9.53 9.71 9.42 9.81 9.49arrow_forwardDraw the Zaitsev product famed when 2,3-dimethylpentan-3-of undergoes an El dehydration. CH₂ E1 OH H₁PO₁ Select Draw Templates More QQQ +H₂Oarrow_forward
- Complete the clean-pushing mechanism for the given ether synthesia from propanol in concentrated sulfurica140°C by adding any mining aloms, bands, charges, nonbonding electron pairs, and curved arrows. Draw hydrogen bonded to cayan, when applicable. ore 11,0 HPC Step 1: Draw curved arrows Step 2: Complete the intend carved Q2Q 56 QQQ Step 3: Complete the intermediate and add curved Step 4: Modify the structures to draw the QQQ QQQarrow_forward6. In an experiment the following replicate set of volume measurements (cm3) was recorded: (25.35, 25.80, 25.28, 25.50, 25.45, 25.43) A. Calculate the mean of the raw data. B. Using the rejection quotient (Q-test) reject any questionable results. C. Recalculate the mean and compare it with the value obtained in 2(a).arrow_forwardA student proposes the transformation below in one step of an organic synthesis. There may be one or more reactants missing from the left-hand side, but there are no products missing from the right-hand side. There may also be catalysts, small inorganic reagents, and other important reaction conditions missing from the arrow. • Is the student's transformation possible? If not, check the box under the drawing area. • If the student's transformation is possible, then complete the reaction by adding any missing reactants to the left-hand side, and adding required catalysts, inorganic reagents, or other important reaction conditions above and below the arrow. • You do not need to balance the reaction, but be sure every important organic reactant or product is shown. + T G OH де OH This transformation can't be done in one step.arrow_forward
- Macmillan Leaming Draw the major organic product of the reaction. 1. CH3CH2MgBr 2. H+ - G Select Draw Templates More H о QQarrow_forwardDraw the condensed structure of 3-hydroxy-2-butanone. Click anywhere to draw the first atom of your structure.arrow_forwardGive the expected major product of reaction of 2,2-dimethylcyclopropane with each of the following reagents. 2. Reaction with dilute H₂SO, in methanol. Select Draw Templates More CHC Erase QQQ c. Reaction with dilute aqueous HBr. Select Drew Templates More Era c QQQ b. Reaction with NaOCH, in methanol. Select Draw Templates More d. Reaction with concentrated HBr. Select Draw Templates More En a QQQ e. Reaction with CH, Mg1, then H*, H₂O 1. Reaction with CH,Li, then H', H₂Oarrow_forward
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