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Science

Chemistry

WW 80- 60 20 4888 3500 Wow! 3000 2500 HAVENUMBERS 2000 1500 1800 600.0

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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File Edit View History Bookmarks People Tab Window Help ALEKS X O Questi x 2 2021-0 x M [EXTE x O Dashb x O Launch X O Launcl X O Class A ezto.mheducation.com/ext/map/index.html?_con3Dcon&external_browser%3D0&launchUrl=https%253A%252F%252Fnewco Saved apter 20 Problem Set i 1 attempts left Check my work 11 Be sure to answer all parts. The equilibrium constant for the reaction Ni²*(aq) + 6 NH3(aq) = Ni(NH3)6 2*(aq) ts is K= 5.6 x 10® at 25°C: Вook (a) What is AG at this temperature? Print (b) If standard-state concentrations of reactants and products are mixed, in which direction does the reaction proceed? erences (c) Determine AG when [Ni(NH2),*1 = 0.010 direction will the reaction proceed to achieve equilibkum? [Ni?*] = 0.0010 M, and [NH3] = 0.0050 M. In which (a) 4.99 x 104 J/mol (Enter your answer in scientific notation.) (b) To the right. To the left. (c) x 10 J/mol (Enter your answer in scientific notation.) To the right. To the left. 19,357 26 étv MacBi
Step 3 of 8 Sum the equations for d[H] and d[Br] and solve for [Br]. (Use the following as necessary: [Br2], [H], [H2], [HBr], k1, k2, k3, k4, and k5.) dt dt [Br] = K5 2k1 [Br.] 2k [Br2] ks Step 4 of 8 Using the equation for I from Step 2, solve for [H]. (Use the following as necessary: [Br], [Br2], [H2], [HBr], k1, k2, k3, k4, and k5.) dt ky[ Br][H,] kg[Br] + k4 [HBr] [H] = k2[Br][H2] k3[Br2] + k4[HBr] Step 5 of 8 Substitute the equation for [Br] from Step 3 into the equation for [H] from Step 4 and simplify. (Use the following as necessary: [Br2], [H2], k1, k2, k3, k4, and k5.) k, k5 [Br.] [H] k3[Br2] + k4[HBr] Submit
2. An 84 kg University of Toledo groundskeeper who is spraying a 100 mg/L solution of the insecticide dieldrin (MW = 381; logP = 4.56) on some trees exposes 100 cm“ of his skin to the solution over a 4 hr period. Dieldrin has a half-life of about 6 months, a volume of distribution of about 40 L/kg, and a dermal permeability of about 3 x 10° cm/sec. (a) Estimate the absorption rate during the exposure period assuming the blood concentration is much lower than the skin concentration (i.e., take the blood level to be zero in the skin absorption equation). (b) Estimate how it takes after exposure begins for the groundskeeper's plasma dieldrin levels to reach 1 ng/L. (c) Estimate the maximum plasma dieldrin concentration in ng/L that will occur in this groundskeeper due to this exposure. (d) Estimate how long it will take after exposure ends for the groundskeeper's plasma dieldrin levels to drop back down to 1 ng/L. %3D
ALEKS - Chandni Singh My Questions | bartleby X 9 CHEM 1A General Chemistry 726 X NetTutor Tutoring https://www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IBd6bRWrqRgBHIfQgBpPcO88HtLzLSjbnicWjKNFwVA6GBjSaytD.. O CHEMICAL REACTIONS Chandni Percent yield of chemical reactions Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium bromide (NaBr) and liquid water (H,O). If 0.0311 g of water is produced from the reaction of 0.81 g of hydrobromic acid and 0.23 g of sodium hydroxide, calculate the percent yield of water. Be sure your answer has the correct number of significant digits in it. 圖 % olo Explanation Check © 2021 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility 12:06 AM 2 Type here to search 60°F Clear ^ Q») ENG 9/16/2021
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LIS 0 x Cee res te erE O Esoe 2011 O Empower 2021 A educate lindsay.k12.ca.us/iframe.aspx?Ctrl STUDENT BASE HOME CONTROL dsay Bookmarks A Classes O Google Sides O Empower 2020 E Google Docs t Lindsay High School R Phynics Safety & Sk E Guided practice 3L Flag for follow-up Group-12 )436 9 10 11 12 13 14 15 16 17 10 Irerlod The Perlodic Table of the Elements Elements in the same group tend to have similar characteristics, but some things like tendency to gain or lose electrons can still vary even within a group Which of the following is true regarding the elements in group 2? O A Be, Beryllium is the largest and has the greatest tendency to gain electrons. OB Be Beryllium and Ba, Barium will have the same tendancy to lose electrons OC Ra, Radium is the smallest and will have the greatest tendency to lose electrons. O D. Ba, Barium will have a greater tendency to lose electrons than Mg, Magnesium. DELL %23 E S A C
Student Name: 5.3 Electron Arrangement in Atoms Chemistry Problem Set Date: Per._ 15. Give the symbol for the atom that corresponds to each electron configuration and write the ending orbital diagram and the four sets of quantum numbers (n, l, m,, ms) for each of the elements below. a. 1s²2s22p63s23p6 b. 1s22s22p63s23p64s23d 104p65s24d' c. 1s22s22p63s23p64s23d 104p65s24d 105p66s25d14f7 d. 1s22s22p³ e. 1s22s22p63s23p64s23d 104p5 f. 1s²2s22p63s23p² g. 1s²2s22p h. 1s22s22p63s23p64s23d10 mulbos enorgeorg MO W.Cr
Ma 9 uta Bb Co Bb 70 Bb Or Ch O Int O Dr O Hc G pe b Se E Lal 4 Pa O Da B Cla G BH O Di + WP A education.wiley.com/was/ui/v2/assessment-player/index.html?launchld=28461bef-2a57-4092-8156-ef4e43a30d2a#/question/8 E Chapter 1 (modified) Question 9 of 26 0 / 1 Show Attempt History Current Attempt in Progress Incorrect. For the following, identify the most likely value for x: BHx X = eTextbook and Media Hint Savo forLator. Last saved 52 seccnds a0. Attemnts:2 of 4 used. Submit Ancwer 4:42 PM e Type here to search 86°F 24 +6, 9/10/2021 ENM 18)
Many common materials that we ingest, though quite safe in reasonable quantities, become toxic when taken in very large doses. A measure of toxicity is the LD50 value (Lethal Dose, 50%). It is the quantity of material, expressed in mg of material per kg of subject-body-weight that, if administered to a population of subjects, would cause 50% of the population to die. The LD50 value for FD&C Red Dye No. 40 is >10,000 mg/kg in rats. Assume that the LD50 value for humans is the same as for rats. Calculate the number of mg of Allura Red present in an 8 fluid ounce glass of the beverage you used in this lab. Assume that the concentration of Allura Red in the beverage is 0.000054 M. The molar mass of Allura Red is 496.42 grams/mol 1 fl oz = 29.5735 mL Do not include units with your answer.
2 Automobile air bags inflate following a serious impact. The impact triggers the following chemical reaction. 2NaN3 (8)→ 2 Na(s) + 3N₂ (9) S W stry.com/myct/itemView?assignmentProblemID=213377858&attemptNo=2&offset=next X 7 # 3 E D 80 C $ 4 R 888 F V % 5 FS T Y G A Part A 6 B If an automobile air bag has a volume of 11.2 L, what mass of NaN3 (in g) is required to fully inflate the air bag upon impact? Assume STP conditions. IVE ΑΣΦ Provide Feedback m = Submit MacBook Air F6 Y H & 7 Request Answer N 40 U J * 8 @ C PwC FB I M ( 9 K DD ? O ) O g L command 3 F10 P . : ; Review I Constants I Periodic Table I { + [ option = 11 ? 1 I 323) Next > 1 delete