SHOW YOUR COMPLETE 23) If potassium has a body centered cubic structure and an atomic radius of 0.280 nm, find thevolume fraction of the unit cell occupied by void spaces. [MW: K = 39]A. 0.52B. 0.32C. 0.74D. 0.68 SAMPLE SOLUTIONTantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. It has a density of 16.4 grams per cubic centimeter and a molecular weight of180.948 g/mol. What is the atomic radius of Ta if it adopts the body centered cubic unitstructure.Garen: Tantalum, TaBCC structureP- 16.4 /om?MW 180.948 9/molReg'd: at omic radius (r)So lu :BCC structureA atoms2 atoms# mwVe Na2 atoms (180.948)(10'na)(1 an)-23# Mwmot23 ovans(4.022 x10Yell3. 64 x1DCmP Na16.4 guinsCm0.0366 nm0.0366= 0. 3321 nmLo.9ラ2)0.144 nma

For any unit cell,volume occupied by the atoms per unit cell or packing fraction can becalculated by…

Answered: 23) If potassium has a body centered…

23) If potassium has a body centered cubic structure and an atomic radius of 0.280 nm, find the volume fraction of the unit cell occupied by void spaces. [MW: K = 39] A. 0.52 B. 0.32 C. 0.74 D. 0.68

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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AutoSave w Cinnamates DIR - Compatibility Mode OFF Home Insert Draw Design Layout References Mailings Review View Table Design Layout Tell me Share O Comments Times New... v 12 A A Аa v AaBbCcD AaBbCcDdE AaBb AаBbCcDdEe AaBbCcDdEe AaBbCcDdE E AaBbCcDdEe AaBbCcDdEe AaBbCcDdEe > Paste A • ev A No Spacing Title Subtle Emph... Normal Heading 1 Heading 2 Subtitle Emphasis Intense Emp.. Styles Pane B U v ab x, Dictate Sensitivity trans-cinnamic acid Work up your spectrum well, and fill in Table 1 below. Omit any impurities, solvents, or other elements that are not part of your compound. For the Figure, make a good drawing in ChemDraw (ACS-1996 settings), inserting the compound name in bold below the structure. Then using small, bold, lowercase letters to match the table, assign all of the 'H signals. Figure 1: Structure and 'H NMR assignments for trans-cinnamic acid. ОН Table 1: Experimental 'H NMR data for trans-cinnamic acid. Signal 8 (ppm) Mult. J-values (Hz) Int. a 11.3 1H b 1H 2H d 3H е…
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Ba(NO,l(aq) + K,SOlaq) Baso(s) + 2 KNOlaq) Volume Volume Trial 0.10 M Ba(NO)2 (ml) 0.10 M K,SO, (ml) Mass Baso4 (s) Limiting Reagent 50. 20. 0.46 50. 40. 0.92 3 50. 50. 1.15 4 50. 60. 1.15 50. 80. 1.15 • Question 8 Use the data to identify the limiting reagent for each reaction performed. V Trail 1 a. Neither/Both EV Trial 2 b. Baso4 EV Trial 3 C. KSO4 EV Trial 4 d. Ba(NO3)2 EV Trial 5 e. KNO3 Question Help: Message instructor I Calculator Submit Question • Question 9 Why is the amount of precipitate in the Data Table above the same in Trials 3 through 5? Edit Insert Formats B IVX x' A
All changes save 7. When two solutions are mixed, a color change occurs. The data tables show the time between mixing and the color change for two sets of conditions. For Condition One, the solution concentrations were constant and temperature varied. For Condition Two, the temperature was constant and concentrations varied. Condition One: Concentration Time for Temperature (°C) Sample Color to Change 1 10° 36 sec 22° 14 sec Condition Two: Temperature Time for Concentration Sample Color to % Change 1. 100% 15 sec 2. 50% 24 sec Which of these statements is true according to the data? O The reaction rate is greater at 22°C than at 10°C. O Reducing the temperature increases the rate of the reaction. The reaction is affected by changes in temperature not by changes in concentration. O Decreasing the concentration increases the reaction rate. PREVIOUS 17 of 25 NEXT SAVE & EXIT
Edit View History Bookmarks People Tab Window Help O Questi x L 2021-0 x M [EXTE! X Dashb x O Launc O Launcix S Class eto.mheducation.com/ext/map/index.html?_con%3con&external_browser=0&launchUrl=https%253A%252F%252 20 Problem Set Saved attempts left Check my work Enter your answer in the provided box. Find AG for the following reaction, at 25°C, using AH and S values. f NHẠCI(s) → NH3(g) + HCI(g) kJ Standard Thermodynamic Values at 298 K Substance or Ion AH (kJ/mol) (J/mol K) HCI(g) HCI(aq) NH3(g) • NH3(aq) NH,CI(s) -92.3 186.79 55.06 -167.46 -45.9 193 -80.83 110 -314.4 94.6 ( Prey 6 of 15
Help 100% 47 T. "ublic Health Ch HSC 258 - Major Projec x MindTap - Cengage Lea X C The Illustration To T =55750828934189288909969212&elSBN=9781305657571&id=D1061392007&nbld=21... * Q Search t Referonces Use the References to access important values if needed for this question. For the following reaction, 50.4 grams of sulfur dioxide are allowed to react with 17.9 grams of water. sulfur dioxide (g) + water (I) sulfurous acid (H2SO3) (g) grams What is the maximum amount of sulfurous acid (H,SO3) that can be formed? What is the FORMULA for the limiting reagent? grams What amount of the excess reagent remains after the reaction is complete? Submit Answer
AutoSave We hw OFF ... Home Insert Draw Design Layout References Mailings Review View O Tell me R Share O Comments Calibri (Bo.. v 11 v A A E vE v E v E E Aa v AaBbCcDdEe AaBbCcD AaBbCcDdE AaBb AaBbCcDdEe BIU V ab A • I v A v Paste х, х E= == No Spacing Normal Heading 1 Heading 2 Title Styles Pane Dictate Sensitivity C13 NMR Peaks Aldehydes RCO)R Aldehydes and ketones Carbaxylic R(CO)X Carbaxylic acid derivatives Ntrile Nitrile RCN CC C-C Alkyne Akyne R-CC-R RCH20 RCH2-O R4C RAC R3CH R3CH RCH2X X= C-C, C-O, Br, CI, N RCH2X R2CH2 RECH2 RCH3 RCH3 TMS TMS 220 200 180 160 140 120 100 80 60 40 20 Typical chemical shifts in 13c-NMR 9) Why do the peaks of associated with aldehydes (both in H NMR and C NMR) appear so much further downfield than other peaks? C13 NMR Peaks E Page 5 of 5 E English (United States) O Focus 295 words 白

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