Directions: Sketch the diagram for each item and solve what is being asked. 1. Three capacitors with individual capacitances of 2 pF, 5 uF, and 10 pF respectively are connected in series with a 12V battery. What are the total capacitance and total charge in the network? 2. Same capacitors in number 1 connected in a parallel. If the combined charge in the network is 50 pC, what are the total voltage and total capacitance in the network? 3. A series combination of two uncharged capacitors are connected to a 15-V battery, 300 JJ of energy is drawn from the battery. If one of the capacitors has a capacitance of 5,0 HF, what is the capacitance of the other? Activity 3: Series-Parallel Capacitor Four capacitors are connected as shown in the figure below. Determine the following: A. Total Capacitance (CT) C. Individual Charges (Q1, Q2, Q3, Q4) B. Total Charge (QT) D. Voltage drop in each capacitor (Vi, Va, Va, V4) G = 45 nF G = 5 AF G = 2.5 HF V- = 30 V C. = 30 nF Activity 4: Energy Stored In a Capacitor 1. A voltage of 12 V is placed on a capacitor with C = 85 pF. (a) What is the charge on the capacitor? (b) How much energy is stored in the capacitor? 2. In open-heart surgery, a much smaller amount of energy will defibrillator the heart. (a) What voltage is applied to the 7 F capacitor of a heart defibrillator that stores 60.0 J of energy? (b) Find the amount of stored charge. 3. Calculate the energy stored in a 5 pF capacitor charged to 30 V.DIRECTION Solve the for wing problems on Hess's law and combined reaction enthalpies. Write the complete solution of your answer. 1. If the AH for Cali(g) + H:(g) - CzHa(g) is-65.6 kJimol. What is the AH for this reaction? CaHs(9) CaH (g) + Ha(g) AH = 2. If the AH for 2CzHe(g) + 70;(g) -+ 4 CO, + 6 H,Ois -2,650 kJ/mol. What is the AH for this reaction? 6CaHe(g) + 2102(g) - 12CO2(9) + 18H20 AH=_ 3. Determine AH for the reaction Fea(SO4)3 - Fe203 + 3SO. AH = given these data: 2Fe 1%02 Fe.O, AH = -1,650 kJ/mol 3S 350, AH = -792 kJ/mol 2Fe + 35 + 602 - Fe,(SO.), AH = -2,583 kJ/mol 4. Determine AH for the reaction CaCO, - CaO + CO. AH = given these data: 2Ca + 20 + 302 - 2CaCO, AH = -2,414 kJ/mol C Oz CO AH = -393.5 kJ/mol Ca + %% 02 - CaO AH = -1.270 k.J/mol 5. The combustion of methane, CH. releases 800.4 kJ/mol of heat. That is when one mole of methane is burned, 800.4 kJ are given off to the surroundings. This means that the products have 800.4 kJ less energy stored in the bonds than the reactants. Thus, AH for the reaction =-800.4 kJ. A negative symbol for AH indicates an exothermic reaction. CH (g) + 2 02(g) - CO2(g) + 2 H2O(1) AH = -800.4 kJ/mol a. How much energy is given off when 3,0 moles of methane are burned? b. How much energy is released when 25,4 grams of CH4 are burned? C. If you were to attempt to make 35.0 grams of methane from carbon dioxide and water ( with oxygen gas also produced), how much heat would be absorbed during reaction