Explain whether the reaction is endothermic or exothermic. In kJ, determine the activation energy of the first step and determine how many steps are there in total.
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Explain whether the reaction is endothermic or exothermic. In kJ, determine the activation energy of the first step and determine how many steps are there in total.
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- Drug Concentration A pharmaceutical companyclaims that the concentration of a drug in a patient’sbloodstream will be at least 10% for 8 hours. Supposeclinical tests show that the concentration of a drug (aspercent) t hours after injection is given byC(t) = 200t/2t2 + 32During what time period is the concentration at least10%? Is the company’s claim supported by the evidence?/document/d/1KWoB0hrXolu7UEKbq4f8LBMHfpjHBRVU3qUzVI7K80U/edit Sample Work Format Tools Extensions Help + nt will $ 4 Normal text R f5 A % T 5 Calibri 12 13. The chemical equation for the decomposition of potassium chlorate (KCIO3 ) is 2 KCIO,(s) → 2 KCl(s) + 3 0₂(g) The molar masses of the elements in this equation are: K: 39.1 g/mol, Cl: 35.4 g/mol, O: 16.0 g/mol 담 ㅁ (b) How many moles of KCI are formed? Pathway: g of KCIO3 → mol KCIO3 → mol KCI Y If 30.6 g of potassium chlorate (KCIO3) reacts.. (a) How many moles of potassium chlorate(KCIO3) are there? Pathway: g of KCIO3 → mol KCIO3 7 + &1 BI U A 3 c) How many grams of KCI are formed? Pathway: g of KCIO3 → mol KCIO3 → mol KCI →g of KCI 18 U fg 8 I no 6 f10 © □ □E - †= = = = insert 9 5 $12 P prt scr L 7 64°F Mostly sunny G 1MEASUREMENT Interconverting derived Sl units A NASA spacecraft measures the rate R at which atmospheric pressure on Mars decreases with altitude. The result at a certain altitude is: R=0.0335 kPa km Convert R to kJ m 4. k kJ m Explanation 4 -1 Check . 0 x10 X Ś MA JUL 20 m tv ♫ ← Q 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use NA 4 3/5 A
- Q 19 please that’s urgentGiven the following data: C2H4(g) + 3O2(g) -> 2CO2(g) +2H2O(l) deltaH = -1411.0 kJ 2C2H6(g) + 7O2(g) -> 4CO2(g) +6H2O(l) deltaH = -3119.8 kJ 2H2(g) +O2 -> 2H2O(l) deltaH = -571.7 kJ Calculate deltaH for the reaction: C2H4(g) + H2(g) -> C2H6(g)Consider the following reaction: C3H13(1) + 25/2 O»(g) → 8 CO2(g) + 9 H20(1) If d[CO2]/dt = 0.5OOM/s, determine the value of d[O2]/dt,
- A chemist fills a reaction vessel with 3.61 atm nitrogen (N,) gas, 8.64 atm oxygen (0,) gas, and 6.55 atm nitrogen monoxide (NO) gas at a temperature of 25.0° C. Under these conditions, calculate the reaction free energy AG for the following chemical reaction: N,(g) + O,(g) = 2NO (g) Use the thermodynamic information in the ALEKS Data tab. Round your answer to the nearest kilojoule. do Data HNO3 (1) -174.1 HNO3 (g) -133.9 Oxygen OH (aq) H20 (1) -285.8 H20 (g) -241.8 02 (9) H202 (1) -187.8 H202 (9) -136.3 Phosphorus Explanation Check P4 (s) 2021 McCWould this be solved using n=MV??Provided Data Time Temperature CHM 131A Lab 9 (min) (°C) Temperature of boiling water 100 25.4 0 -40 Initial temperature of water 32.5 1 44.9 2 Temperature change (AT) 56.9 3 71.3 Mass of beaker 99.233 4 86.6 5 Mass of beaker and water 226.31 g 100.2 6 100.6 7 Mass of water 100.6 8 9 100.6 I
- Ď 1. a. C. t X x НО OH Cro3 Hs04 SOCI 1. MCPBA 2. CH3 CH₂ Mg Br THF 3. Hcl Workup PCC CH₂ C12 ←Chart 1 ▾ ⠀ H G fr Axis Title F E D 1/T -1.20397 0.003356 -0.59784 0.003145 -0.16252 0.003003 0.262364 0.002874 LN K Chart Title 0.4 0.2 0 0.0034 0.0033 0.0032 0.0031 003 0.0029 0.00282 -0.4 -0.6 -0.8 -1 -1.2 -1.4 TK Axis Title C y=-3033.1x+8.9597 R² = 0.999 298 318 333 348 K -Series1 Linear (Series1) C O B 0.3 0.55 0.85 1.3 + 2 T A > FNM 45 1 25 2 3 60 4 75 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Consider the following data to determine the molar entropy AS°: Temp (°C) Keq 0.3 0.55 0.85 1.3 25 45 60 75 a. 364.82 J/K.mol b. 74.49 J/K.mol c. 86.37 J/K.mol d. 89.59 J/K.mol e. 64.25 J/K.mol Clear my choiceConte X ALEK X O Rich x Ceng Bb Excel Bb What X O COVI e Daily x O Amon x e Chat N Ne www-awn.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNsikr7j8P3jH-lIJOkWvnm4w-aQ-rw-zRhgRnayfmbBs65spEVIGu-K5Jx48w9eOKISqsha Click to go forward, hold to see history Apps R Blackboard 2Mail - Ava Schied. O UAConnect Biology Syllabus J Labflow - Courses O Explore - HogSync O Packback + MyN Objective Knowledge Check Question 13 Calculate the mass of glucose (C,H,,0,) that contains a trillion (1.0 x 102) oxygen atoms. Be sure your answer has a unit symbol if necessary, and round it to 2 significant digits. I Don't Know Submit O 2020 McGraw-Hill Edu MacBook Dro