Question 1 Tries Marked out of 2.50 P Flas question What is the volume (in mL) of 0.723 mol of carbon disulfide (MM = 76.13 g/mol) at 20°C? The density of carbon disulfide is 1.263 g/mL at 20°C. Your answer should have 3 sig figs. Answer: Check
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According to mole concept
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- ECT NOTEBOOK AND 290) NISYNISOL Aktiv Chemistry - Numeric Entry x → C + tab 01 esc app.aktiv.com A chemist has a block of gold metal (density is 19.3 g/mL). The block weighs 3.10 g. What is the volume of the gold block in ml? H 9 a Content/24SSEM BIO_112_0 x | + 2 W #m Sin Question 19 of 36 5 10 8 1 4 7 +/- 2 LO 5 8 | mL 3 6 9 0 ☆PT McGraw Hill Campus Cn [11 O ATOMS, IONS AND MOLECULES Finding atomic mass from isotope mass and natural abundance isotope 74°F 100. Calculate the Molar Mass of Acet X+ https://www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNslkr7j8P3jH-liG1Sp4C1qHE9vg-2-exSXq493r_tJ2gZs0a-_xkRSR8a7T-... A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar System. Mass-spectroscopic analysis produced the following data on the isotopes of molybdenum in these samples: Mo 99.91 Mo 95.90 x A ALEKS - Elizabeth Galaz - Learn x mass relative (amu) abundance Mo 0 96.2% Explanation 3.8% Use these measurements to complete the entry for molybdenum in the Periodic Table that would be used on 98765 ALEKS. Round your entry for the atomic mass to 3 significant digits. Caution: your correct answer will have the same format but not necessarily the same numbers as the entry for molybdenum in the Periodic Table we use here on Earth. X Check A A AB Search 3/5 hp A @ 0 LE Elizab…d' II ALEKS- Courtney Wh x New Tab X Lab 11-Atomic Finge G pericdic table-Goog x ALEKS rate Ex X lab 10 empirical form www.awu.aleks.com/alekscgi/x/lsl.exe/1o_u-lgNslkr7j8P3jH-lijulplKKWv4bwenmyrLYoBHbAAsJtmzj53GErnx_viTdHbIGMF9jvgkSu_nrizREmdQXHPJbMzq0mOrXJcuonZITQhB66q?1oBw7QYjb Courtne 45 O CHEMICAL REACTIONS Theoretical yield of chemical reactions reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO,) and gaseous water (H,0). What is the (CH,(CH.),CH) Gaseous butane theoretical yield of carbon dioxide formed from the reaction of 5.81 g of butane and 28.5 g of oxygen gas? Be sure your answer has the correct number of significant digits in it. Terms of Use Privacy Center Accessibility ©2022 McGraw Hill LLC. All Rights Reserved. Check Explanation 1I0 -> $4 4. 8. 23 51 3. k 00 S a. u q ctrl 145 alt
- Determine the volume of a sample of copper in (m³) with a mass of 2.2 x 105 tons and a density of 8.96 g/cm. (1 ton = 2205 lbs, 1 lb = 16 ounces, 1 kg = 2.20 lbs,1 kg = 1000g. 100 cm = 1m) %3D %3! %3DFind New equation 3 no 00 2 e Peyo co lel-2e )0o, ia SmECO Sml CO 2 m Fe Look for the conversion factor that contains the 2mt Fe Smt CD 3 ma C Fe,O Im co 1m a 1 Fa New question Tm P units "mol23" on top and "mol CO" on the How many meles of carben mondde (CO)re equired treact completely with 1.75 moles of on ) onide FeO 1 co Tmel Oy bottom. Drag the tile containing this factor down 44 00 s mote Co 1 mol Fe 1ml C0 1malCO Problems sclved0 to the green strip at the bottom. .00-10 te 2241L CO Show units Flip tile 22.41 LCO Reset Tools SHORT ANSWER Question 9 Fe O 3? According to the tile, how many moles of CO react with one mole of Answer in a complete sentence. BIUS X2 x? E E A Vx H. Enter your answer here Continu All Changes SavedA districtims.seattleschools.org/common-assessment-delivery/start/4832899123?action3Donresume&submissionld%3D490555142 Element A Element D Element X Element Z Mixture 750 700 650 600 550 500 450 400 Wavelength (nm) Use the picture above to determine what is in the mixture. Choose all the elements that are present in the mixture. V Element A OElement D O Element X O Element Z 1. 2.
- es-2021S2 Allison.E CHEM X 2.ga.us/d21/Ims/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=2593077&isprv=&drc%3D1&qi=2478023&cfql=0&dnb%3D08fi lancer O Khan Academy E DeltaMath musictheory.net - E. Ca Desmos | Scientific. g Final Exam Ciara Smith: Attempt 1 D View hint for Question 18 Question 19 (3 points) Explain how OCompound A and Compound B will dissolve in water using the correct vocabulary including solvation, dissociatic n, ionic, and covalent. O Mg Cl CH Compound A Compound B hp 二Time required to elute substance Z when N = 1000 = when N = 2000 The two quantities cannot be compared due to insufficient information. when N = 1000 > when N = 2000 %3D when N = 1000 < when N = 20009. The following are three sets of data for the atomic mass on antimony (Sb) from the work of Willard and McAlpine. Set 1 Set 2 Set 3 121.771 121.784 121.752 121.787 121.758 121.784 121.803 121.765 121.765 121.781 121.794 a) Determine the mean and standard deviation of each data set. b) Determine the 95% confidence intervals for each data set. c) Determine whether the 121.803 value in Set 1 is an outlier for that set. d) Pool the data and determine the overall mean and the pooled standard deviation. e) Compare the overall mean of the 11 data points with the currently accepted value. Report the absolute error and the percent relative error, assuming the currently accepted value is the true value.
- What is the key equation for spectrometry experiments? O q rxn = -q_cal %3D O d=m/V O A= ebC O at endpoint, mol acid = mol base4:02 PM Sun Nov 8 * 99% A cdn.inst-fs-iad-prod.inscloudgate.net WORKSHEET 10: BALANCING EQUATIONS ΡΟINTS: NAME: DUE DATE: Balance the following chemical equations. Then identify the type of equation for each: combination, decomposition, single replacement, double replacement, or combustion. 1. с Н, _C,H, + O,→ _CO, + _H.O 2. K + F, → KF 2 Al +_0, → _Al,0, 4. _N, +_H, → NH, Fe,O3 Fe,+_co Kample 5. CO → (g) _Fe+ CO, (s) 2(g) H,SO̟ + Вa(ОН), > BaSO,+ _H,0 6. 7. _Al + HCl → AICI, + _H, _H,PO, Н. РО, + HCl → _PCl,+ _H,O 8. NaHCO, > _Na,CO, + _ Н,0 + 3. 9.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