help Question 5 8 pts For P. (s) + 3Cl2 (9) - the sign) 2PCis (),...
2Al(s) + 3Cl2(8) - 2AICI,(s) AH =? Use the reactions here to determine the AH' for reaction : ® HCI(g) — HCl(aq) AH;, = -74.8 kJ (a) Hz(8) + C1>(- 2HCl(8) AH) = -185 kJ M AICI;(aq) - AICI,(s) AH = +323 kJ/mol M 2Al(s) + 6HCl(aq) - 2AICI,(aq) + 3H2(g) AH = -10:49 J
IS LOCAS Question 16 5 pts Given the following data: S(s) + O2(g) → SO3(8) AH=-395.2 kJ 2502(g) + O2(g) - 2503(g) AH = - 198.2 kJ Calculate AH for the reaction: S(s) + O2(g) +SO2(g) -197.0 kJ 0 -593.4 kJ -296.1 kJ -494.3 kJ +296.1 kJ 5 pts Question 17
Question 9 8 pts (8) Let S be the solid in the first octant that lies inside the sphere p = 2 and underneath the cone == 33° + 3y". Set up a triple integral in spherical coordinates that represents the volume of S.
Questions 7 & 8 are only
posted as a reference for question 9.
QUESTION 7 In the drawing below, E -4.0N/C and d -1.5m. Calculate the work done by the electric field in moving a +5.0x109 charge from A to B. Be sure to include-sign if your answer is negative. Your answer needs to be in J but you don't need to enter the unit in your answer for this question. QUESTION 8 In the situation in diagram b above,...
Question 7 0.5 pts Determine the sign of ASsur and ASsys for the following chemical reaction at 298 K: C3H8 (8)+5 O2 (g)3 CO2(g)+4 H20(g)AH nxn-2044 k Question 8 0.5 pts Calculate the ?Gnn for the following reaction. 4 HNOg(g) + 5 N2H4(1)-7 N2(g) + 12 H2on HNO3(g) N2H4l) H20() G"f (kJ/mol) 73.5 149.3 237.1 O-3.886x103 kJ 0-3298x103 ? -2.393x103kJ 3.298 kJ + 3298x103 kJ
Question 9 1 pts Use the Z-Score_T-Score_Probability work sheet (from Student Help) or the Excel function to determine the p-value for the shaded area to the right, 25 degrees of freedom, and a t* of 1.45. Provide you answer to three decimal places. (help-do not forget to enter the d.f. = if using the excel spread sheet)
Question 14 5 pts The supply function for slow cookers is S(p) = p - 5, while the demand function is D(P) = 317 - p. In the above equations, p is the price of a slow cooker. The government imposes a $48 tax on the producers of slow cookers. Calculate the price that the supplier receives for a slow cooker. Question 15 5 pts The demand function is: D (p) = 42 - p, while the supply function is...
Question 8 1 pts A particular reaction has AH = -104 kJ and AS = -137 J/K. At 25°C, what is the minimum amount of heat that is lost to the surroundings when this reaction occurs? Enter your answer to 0 decimal places and in units of kJ. Do not include a positive or negative sign in your answer.
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This Question: 1 pt 8 of 8 (8 complete) This Quiz: 8 pts uppos o arandom sa pleofn=700 measure ants is Solo tod rom a bin mial pourer distribution of the sample proportion, p. Complete parts a through e below a. p-0.2 t probabil yofsucess p For each ofthe given va es ofp g ege anand sanded deafen one Mpl The mean of the sampling distribution of p s The standard deviation of the sampling disiribulion of p...
need help on discrete structures
Question 9 5 pts A child is allowed to reach into a bag and choose any two candy bars. The bag contains 5 dark chocolate bars, 5 milk chocolate bars,5 white chocolate bars, and 5 chocolate bars with almonds. How many different ways are there for the child to choose 2 bars? Question 10 5 pts A store sells apples, bananas, and oranges. You want to buy two pieces, the first one for yourself and...