Concept explainers
(a)
Interpretation : The length of the box in centimetres should be determined.
Concept Introduction : The conversion factor can be used to convert one unit to another with the help of dimension analysis method.
(b)
Interpretation : The width of the box in centimetres should be determined.
Concept Introduction : The conversion factor can be used to convert one unit to another with the help of dimension analysis method.
(c)
Interpretation : The numberof significant figures in the width measurement should be determined.
Concept Introduction : There are following rules to determine the number of significant figures in a number:
- All non-zero digits are significant.
- Trailing zeros after decimal are significant.
- All zeros in between two significant digits are significant.
(d)
Interpretation : The volume of the box in cubic centimetres should be calculated.
Concept Introduction : The conversion factor can be used to convert one unit to another with the help of dimension analysis method. The volume formula of cuboid can be written as:
Volume = (length × width × height)
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EP BASIC CHEMISTRY-STANDALONE ACCESS
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- Which structure of molecular formula C4H8C12 fits both the 'H NMR and 13C NMR spectra shown + Cl A. B. Cl C. a D. Cl 10 00-228 Low? 9 8 7 6 5 ppm 'H NMR 40 40 -89 200 180 160 140 120 100 -8 80 60 13 3 2 1 0 CD8-03-793 ppm 13C NMR 20 -20 0 An unknown has a molecular ion with a mass of 134. The relative abundance of the peak at 135 is 9.9%. a. What is the molecular formula of the unknown? b. How many rings or pi-bonds in the unknown? c. Propose two structures for the unknown. d. How could you distinguish your answers to "c" using 13C-NMR? Identify the indicated sets of protons as unrelated, homotopic, enantiotopic, or diastereotopic. H HAarrow_forwardGiven the reaction: O2(g) + 2 NO(g) → 2 NO2(g)With the rate law: Rate = k [O2]2 [NO] What happens to the rate if the concentration of O2 is doubled? And why?arrow_forwardPlease correct answer and don't used hand raiting and don't used Ai solutionarrow_forward
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