Concept explainers
Interpretation: The wavelength required to break the given molecule with given
Concept Introduction:
Bond Dissociation Energy: The minimum energy required to break a bond between two atoms present in the molecule is called bond dissociation energy.
Energy: The energy is conversed property since it can neither be created nor be destroyed but can be transformed. The energy of the photon is obtained by using the following relation
Wavelength: The distance between the two continuous maximum displacements present in wave or the two continuous minimum displacements present in a wave exhibited by the photons is called wavelength. The wavelength of the photon is inversely proportional to its frequency. The relationship between them is given by the following formula,
Frequency: It denotes the number of waves passes in given amount of time.
Want to see the full answer?
Check out a sample textbook solutionChapter 21 Solutions
Chemistry: Atoms First
- Solid rocket fuel utilizes the oxidation of methyl hydrazine by dinitrogen tetroxide for propulsion: [UNBALANCED] O2NNO2(l) + (CH3)HNNH2(l) à H2O(g) + N2(g) + CO2(g) (A) Balance the equation (integers). (B) Draw the Lewis dot structures for each chemical, methyl hydrazine and dinitrogen tetroxide are given. Show all electrons. (C) Use the following bond energies to estimate DH for the reaction as balanced in (A). Bond dissociation energies (kJ/mol) C - H 413 C - C 347 C - O 358 N - N 160 C - N 305 O - H 467 C = C 614 C = O 799 N = N 418 C = N 615 N - H 391 C ≡ C 839 O - O 146 N ≡ N 941 C ≡ N 891 N - O 201 N = O 607 O = O…arrow_forward10. Which of the following does not match the others? 1.68 5 (A) 3.88 67.2 1 1000 100 10 1 AU: (MJ/mol) (B) (C) 1s²2s²2p5 (D) # of electronsarrow_forwardThe Lewis structures of acetone and n-propane is shown below, which of the following is true? (A) I is polar and II is nonpolar (B) I is nonpolar and II is polar (C) Both I and II are nonpolar (D) Both I and II are polararrow_forward
- Wine open to the air turns sour over time due to oxidation of ethanol (molar mass 46 g/mole) to acetic acid (molar mass 60.0 g/mole). The reactions are shown by these two equations. 2C,H,OH(aq) + O2(g) 2CH;CHO(aq) + 0,(g) 2CH,CHO(aq) + 2н,0() 2CH;COOH(aq) If there is a 40.0% yield for the first step and a 40.0% yield for the second step, how many grams of acetic can are produced if you start with 16.00 g of ethanol? A) 2.23 B) 3.34 g C) 44.5g D) 16.0 garrow_forwardQuestion 9 (2 points) The reaction of a metal, M, with a halogen, X2, proceeds by an exothermic reaction as indicated by this equation: M(s) + X2(g) → MX2(s). Which options will make the reaction more exothermic? (Choose all that apply) ☐ a) A larger radius for Mg+2 b) A high ionization energy for M c) The smaller radius for Mg+2 ☐ d) A low ionization energy for Marrow_forwardVolume occupied by single CsCl ion pair in a crystal is 7.014 × 10-23 cm³. The smallest Cs - Cs internuclear distance is equal to length of the side of the cube corresponding to volume of one CsCl ion pair. The smallest Cs to Cs internuclear distance is nearly (a) 4.4 Å (c) 4 Å (b) 4.3 Å (d) 4.5 Åarrow_forward
- 32. All of the following ions have the same electron configuration as a noble gas except (a) Al+3 (b) Na+¹ (c) K (d) C1¹ (e) Ca¹²arrow_forward39. How many grams are in 2.3 x 1024 formula units of KNO3? (A) 38.6 grams (B) 102.3 grams (C) 140 grams (D) 386 grams 40. Which statement describes the general trends in electronegativity and first ionization energy as the elements in Period 3 are considered in order from Na to Cl? (A) Electronegativity increases, and first ionization energy decreases (B) Electronegativity decreases, and first ionization energy decreases (C) Electronegativity and first ionization energy both increase (D) Electronegativity and first ionization energy both decreasearrow_forward10 (c) An element T has a melting point of 30°C and a boiling point of 2440 °C. It conducts electricity at room temperature. It burns in oxygen to form an oxide with formula T₂O₂ which can react with both acids and bases. T also forms a compound with fluorine, which has a high melting point and conducts electricity in molten form. The approximate relative atomic mass of T is 70. (1) What type of oxide is T,O,? (i) Give two properties that indicate that T is probably a metal. 1. 2 (iii) Predict the formula for the fluoride of T E [1] [2] N [1] (iv) What are the products of the electrolysis of the molten fluoride of using inert electrodes? and (v) In which group and period of the Periodic Table will T be placed? group period 21 2) (vi) Write the symbol of the element in the Periodic Table which most closely resembles T.arrow_forward
- (b) Na20(s) + 2HI(g)→ 2NaI(s) + H,0(1) AG (Na,0(s)) =-376.56 kJ/mol AG (HI(g)) = 1.30 kJ/mol AG (H,O(1) =-237.2 kJ/mol AG° AG (Nal(s)) = ? =-435.44 kJ/mol rxn Enter your answer in the box provided. kJ/molarrow_forwardHow many nonbonding electron pairs are there in the Lewisstructure of the peroxide ion, O22-?(a) 7 (b) 6 (c) 5 (d) 4 (e) 3arrow_forwardHow many resonance structures, if any, can be drawn for the nitrate ion (NO3-)? (a) 1 (no resonance) (b) 2 (c) 3 (d) 4arrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage LearningChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning