D Question 11 Which of the following represents a pair of isotopes? o 3224Si and 7232Ge...
D Question 32 3 pts What is the wavelength of an electron (masse- = 9.109 x 10-31 kg) moving at a velocity of 3.0 x 107 m/s? 3.3 x 10 m O 2.999 108 m/s greater than 1.1 x 104m 2.4 x 10-11 m less than 3.9 x 10-12 m Question 27 3 pts Which of the following has the largest radius? CI- O S2- O K+
Question 22 3 pts Which orbital shown below represents an orbital(s) with l = 12 A B с D O B OA O A and B Question 23 3 pts Which of the following statements regarding electromagnetic radiation (EMR) is true? EMR with a wavelength of 400 nm travels faster than that with a wavelength of 600 nm. EMR with a wavelength of 600 nm travels faster than that with a wavelength of 400 nm. The frequency of electromagnetic radiation...
O a missed cost. D Question 8 0.5 pts hi: Which of the following represents a non-recurring cost? O Wages for a new employee. O The purchase of new equipment. O The lease of new equipment O The cost of power to run manufacturing equipment. DQuestion 9 Question 7 0.5 pts You decide to pay cash for a new car rather than finance the car at 1.9% for three years. If your savings account from which the cash is withdrawn...
Question 11 (2 points) D Which of the following does not represent a conjugate acid-base pair? HCO3/CO32 H3PO4/HPO42 OH/O-2 NH4 /NH3 Save Question 12 (2 points) D Consider the weak acid HCO3 whose pKa -10.32, which form will pre
QUESTION 11 Which of the following has 1 pair of parallel sides and 1 pair of congruent sides? O Parallelogram Okite Rectangle Isosceles Trapezoid O Quadrilateral Trapezoid Rhombus Square QUESTION 12 Which of the following has 1 pair of parallel sides and no congruent sides? Isosceles Trapezoid Kite Quadrilateral O Square Trapezoid Parallelogram Rectangle Rhombus
QUESTION 10 How much energy is carried by a photon of wavelength 660. nm? O 6.63 x 1034 J O 0.000056 T O 1.46 x 1048 J O 0.00067J O 3.01x 10-19 QUESTION 11 Find the energy (in electron-Volts) given off by an electron in a hydrogen atom undergoing a transition from the n-3 to the n- 1 energy level. QUESTION 12 The energy of a photon depends on O its velocity O its frequency O its amplitude
Question 18 1 pts Which of the following isotopes contributes to the total molecular mass of 24.31amu? Mg-25 No answer text provided. Mg-26 O Mg-24
Photolysis of carbon monoxide can occur according to the following rxn: CO + hν --> C + O (delta)H = 1079 kJ/mole What wavelength of light does this correspond to in m and nm? (1079 kJ/mol) * (1000 J/1 kJ) * (1 mol/6.02*1023 photons) = 1.792 * (10^-18 J/photon) ([6.6 * 10^ -34 J/s) * (3.0*10^8 m/s)] / 1.792 * 10^-18 J/photon = 1.1 * 10^7 m or 110 nm
Question 12 0.5 pts Which of the following are NOT a conjugate pair? O HCO3- and CO32- O H30 and H20 O HC2H4NO2 and H2C2H4NO2 O HIO4 and I04 Hoc,04 and C2042-
0.91 nm 2.7 nm D | Question 25 4 pts A 2.0 eV electron is incident on a o.20-nm barrier that is 5.67 eV high. What is the probability that this electron will tunnel through the barrier? (1 ev 1.60 10-19 J, m 9.11 10-31 kg. h- 1.055 x 1034 J s, h 6.626 x 1034 j .s) 2.0 x 10-2 1.5 x 10-3 9.0 10-4 1.2 10-3 1.0 x 10-3 0.91 nm 2.7 nm D | Question 25 4...