Table 11.1 (data) m Test 15-cm Test Tube 10-cm Test Tube Tube Amount of KIO3 Trial Number Amount of Water Amount of NaHSO3 oln Reaction Time 20 drops 20 drops 20 drops 35 drops 30 drops 20 drops 5 drops 1:26 10 drops l0:42 20 drops 1:21 2 3 Table 11.2 (report) oncentration ria Number Concentration Reaction-Rate Change Reaction Rate Change betweern Trials 1 and 2 betweern Trials 1 and 3 2 3
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- Of 10.0mg of silver chromate is mixed with 100.0ml of water, how many milligrams of silver acetate will remain undissolved? Ksp 9.0x10-12Dexamethasone is a corticosteroid used in a wide range of conditions for its anti-inflammatory and immunosuppressant effects. It was tested in hospitalized COVID-19 patients in the United Kingdom's national clinical trial recovery and according to preliminary findings shared with WHO, for patients on ventilators, the treatment was shown to reduce mortality by about one third, and for patients requiring only oxygen, mortality was cut by about one fifth. Given the structure of dexamethasone, how many chiral centers are present in its structure? Он ... но H (A) 9 (B) none of these с) 6 E) 7 ||IDexamethasone is a corticosteroid used in a wide range of conditions for its anti-inflammatory and immunosuppressant effects. It was tested in hospitalized COVID-19 patients in the United Kingdom’s national clinical trial recovery and according to preliminary findings shared with WHO, for patients on ventilators, the treatment was shown to reduce mortality by about one third, and for patients requiring only oxygen, mortality was cut by about one fifth. Given the structure of dexamethasone, how many chiral centers are present in its structure?
- (20u n. Illt Illix and the final pressure of the mixture. 13 - 36 A mixture of gases consists of 0.9kg of oxygen, 0.7kg of carbon dioxide, and 0.2kg of helium. This mixture is maintained at 100kPa and 27°C. Determine the apparent molecular weight of this mixture, the volume it occupies, the partial volume of the oxygen, and the partial pressure of the helium. Answers: 19.1kr 1k/mc mol,2.35m3, 0.702m3, 53.2kPa Determine this answers making a table and with the formulasDexamethasone is a corticosteroid used in a wide range of conditions for its anti-inflammatory and immunosuppressant effects. It was tested in hospitalized COVID-19 patients in the United Kingdom's national clinical trial recovery and according to preliminary findings shared with WHO, for patients on ventilators, the treatment was shown to reduce mortality by about one third, and for patients requiring only oxygen, mortality was cut by about one fifth. Given the structure of dexamethasone, how many chiral centers are present in its structure? Он ... HO А) 6 B none of these D) 9 E) 7 .||I CO12. Calcium chloride is used:(There may be multiple correct answers!) A) As a hemostatic agent B) As an antidote for poisoning with salts of heavy metals B) As an antihistamine D) In dentistry - for taking impressions from the jaws E) In surgical practice - for blood clotting.
- Why does the collision gas have to be inert?The air in a recently used classroom 9m x 7m x 9m tested 0.12% carbon dioxide. How many cubic meters of fresh air must be admitted per minute in order that 10 minutes later it shall contain not over 0.06% carbon dioxide. Fresh air contains 0.04% carbon dioxide. Assumeimmediate mixing of fresh with stale air. (A) 14 (B) 11 (C) 15 (D) 19 (E) 17Descriptives Bronchial reactivity 95% Confidence Interval for Mean Mean Std. Deviation Std. Error Lower Bound Upper Bound Minimum Maximum Sulfur dioxide 6.806 5 18.840 9.6919 4.3344 30.874 5.1 30.1 Nitrous dioxide 6 6.617 3.9448 1.6105 2.477 10.757 2.2 11.9 Oxygen 4 4.975 3.4092 1.7046 -450 10.400 2.1 9.3 Total 15 10.253 8.6514 2.2338 5.462 15.044 2.1 30.1 ANOVA Bronchial reactivity Sum of Squares dr Mean Square F Sig. Between Groups 559.450 2 279.725 6.873 .010 Within Groups 488.408 12 40.701 Total 1047.857 14
- Nitric oxide reacts with hydrogen to release large amounts of chemiluminescence with the characteristics of the highly cytotoxic species. The following data were measured for the reaction of nitric oxide with hydrogen: Data number 1 2 3 2 NO(g) + 2 H₂(g) → N₂(g) + 2 H₂O(g) [NO] (M) 0.1 0.1 0.2 [H₂] (M) 0.1 0.2 0.1 Based on the data, (a) Determine the rate law for this reaction. (b) Calculate the rate constant. (c) Calculate the rate when [NO] = 0.050 M and [H₂] = 0.150 M Initial rate (M/S) 1.23 x 10-³ 2.46 x 10-³ 4.92 x 10-³Table 11.3 (data) cm les Tube Test Tube cm les Tube Trial Amount of Amount of Amount of Number KIO3 Soln. Water NaHSO3 Soln 20 drops 30 drops 20 drops 30 drops 20 drops 30 drops Reaction Temp 10 drops 10 drops 15 C 10 drops 35 C Reaction Time 0:36 1:13 0:18 2 3 Table 11.4 (report) ria Number eaction Rate Temperature 20 C 15 C Reaction Rate 0.28 0.17 an for 10°C decrease 2 for 10°C increase 3 35 C 0.551-arr In a study of the gas phase decomposition of phosphine at 120 °C PH3(g)- →1/4 P4(g) + 3/2 H2(g) the concentration of PH3 was followed as a function of time. It was found that a graph of In[PH3] versus time in seconds gave a straight line with a slope of -2.50×10² s1 and a y-intercept of -3.24. Based on this plot, the reaction i v O order in PH, and the half life for the reaction is seconds. zero first second