If the reaction is not spontaneous under standard conditions at 298K, at what temperature (if any) would the reaction become spontaneous? a) 2 PbS (s) + 3 O2 (g) → 2 PbO (s) + 2SO2 (g) ; ΔH° = -844 kJ; ΔS°= -165 J/K b) 2 POCl3 (g) → 2 PCl3 (g) + O2 (g) ; ΔH° = 572 kJ; ΔS°= 179 J/K 5. Consider the reaction H2 (g) + F2 (g) → 2 HF (g). a) Using data in your Appendix B, calculate ΔG° at 25°C b) Calculate ΔG at 298K if the reaction mixture consists of 8.0 bar of H2, 4.5 bar of F2 and 0.36 bar of HF. 6.
The coordinates for 0 radians would be (5,0). The coordinates for /4 radians would be [(square root of 2)/2, (square root of 2)/2]. The coordinates for /2 radians would be (0,5). 5) Consider the two points in Quadrant I on Circle B. What is the special relationship between them?
108. Two common sugars, glucose or C6H12O6, and sucrose or C12H22O11, are both carbohydrate4s. Their standard enthalpies of formation are: Glucose = -1273 kJ/mol and Sucrose = -2221 kJ/mol. Using this data: a) Calculate the molar enthalpy of combustion to CO2 (g) and H2O (l). b) Calculate the enthalpy of combustion per gram of each sugar.
11 11. The roots of the quadratic equationare a) real, rational, and equal b) real, rational, and unequal c) real, irrational, and unequal d) imaginary 12. Express the roots of the equationin simplest a + bi form. 13. For which value of k will the roots ofbe real?
The DRI for linoleic acid is an AI of 14-17 grams/day for adult men and 11-12 grams per day for adult women. The AI for alpha-linoleic acid is 1.6 grams per day for adult men and 1.1. grams per day for adult women. Remember, the recommended intake of saturated fat is less than 7% of b) Discuss if you would change your diet to better meet the goals of a healthy diet and if so how. Please be very specific. Be sure to mention your intake of foods that are considered a source of “Discretionary Calories” in your diet.
We can conclude that the data are Poisson distributed. Chi-Square test of independence Problem 12.12 Use the following contingency table to determine whether variable 1 is independent of variable 2. Let α = .01 | Variable 2 | Variable1 | 24 | 13 | 47 | 58 | | 93 | 59 | 187 | 244 | Step 1 Ho: the two classifications are independent Ha: the two classifications are dependent Step 2 d.f = (r – 1) (c – 1) Step 3 α = 0.01 x 2 0.01, 3df = 11.3449 Step 4 Reject Ho if x 2 > 11.3449 | Variable 2 | Total | Variable1 | 24 (22.92) | 13 (14.10) | 47 (45.83) | 58 (59.15) | 142 | | 93 (94.08) | 59 (57.90) | 187 (188.17) | 244 (242.85) | 583
I need to analyze the types of carbohydrates that I am consuming and make sure that the majority are whole grains and nutrient dense. Protein 14.6% of kCal’s from my intake came from protein and according to the AMDR’s range of 10-35%, my protein intake is on the low side. I have to consume more protein to decrease my disease risk. Some examples of food that I should add to my diet are legumes, fish and skinless poultry. With the help of the Intake Compared to DRI report I was able to identify the nutrients in which I was deficient in during my three day analysis.
To do that we had to count the molar mass (M) of zinc sulfate. Then we multiplied the amount of zinc sulfate in moles with the molar mass. Then the answer was the mass (m) of the zinc sulfate to add in grams. M(ZnSO4) = (65.38 + 32.06 + 4 x 16.00) g/mol = 161.44 g/mol n (ZnSO4) = 0.02 mol M (ZnSO4) = 161.44
butter •1 c. cheddar cheese Utensils: •oven (you'll need help from your adult assistant) •1½-quart casserole dish •mixing spoon Directions: 1.Heat oven to 450°F (232°C). 2.In ungreased casserole dish, stir potatoes and sauce mix, water, heavy cream, butter, and cheese. 3.Bake uncovered for about 20 minutes or until top is light golden brown and potatoes are tender. 4.Remove from
Refer to the food pyramid in iProfile to see how you fulfilled your goals for the various foods pyramid groups. If you did not eat a variety of food, how might you expand your field of choices? To insure that we always eat foods that are from each food groups every day. Compare your diet to that of the sample profile of Kelly Watson. Whose diet provides the best opportunity for health and well-being?