◄ Mail 3:11 PM Fri Sep 16<>M eBooks - My...<1.901.911.921.931.941.951.96AA●●●prod.reader-ui.prod.mheducation.comx Additional Pr... C | Chegg.com G Suppose tha...AnswerC Solved: Cha...↓C75%+The surfab AnswAaby mining gold from the ocean?Measurements show that 1.0 g of iron (Fe) contains 1.1 × 10²² Fe atoms. Howmany Fe atoms are in 4.9 g of Fe, which is the total amount of iron in the body ofan average adult?The thin outer layer of Earth, called the crust, contains only 0.50% of Earth's totalmass and yet is the source of almost all the elements (the atmosphere provideselements such as oxygen, nitrogen, and a few other gases). Silicon (Si) is the secondmost abundant element in Earth's crust (27.2% by mass). Calculate the mass ofsilicon in kilograms in Earth's crust. (The mass of Earth is 5.9 × 10²¹ tons.1 ton = 2000 lb; 1 lb = = 453.6 g.)Page 37The radius of a copper (Cu) atom is roughly 1.3 × 10−¹0 m. How many times canyou divide evenly a piece of 10-cm copper wire until it is reduced to two separatecopper atoms? (Assume there are appropriate tools for this procedure and thatcopper atoms are lined up in a straight line, in contact with each other. Round offyour answer to an integer.)AnswerOne gallon of gasoline burned in an automobile's engine produces, on average, 9.5kg of carbon dioxide, which is a greenhouse gas-that is, it promotes the warmingof Earth's atmosphere. Calculate the annual production of carbon dioxide inkilograms if there are 250 million cars in the United States and each car covers adistance of 5000 mi at a consumption rate of 20 miles per gallon.A sheet of aluminum (Al) foil has a total area of 1.000 ft² and a mass of 3.636 g.What is the thickness of the foil in millimeters? (Density of Al = 2.699 g/cm³.)AnswerFor each of the following, is the mixture homogeneous or heterogeneous: (a) air ina closed bottle, (b) air over New York City.Chlorine is used to disinfect swimming pools. The accepted concentration for thispurpose is 1 ppm chlorine, or 1 g of chlorine per million grams of water. Calculatethe volume of a chlorine solution (in milliliters) a homeowner should add to herswimming pool if the solution contams 0.0% chorne by mass and there are

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Answered: 1.90 Measurements show that 1.0 g of…

1.90 Measurements show that 1.0 g of iron (Fe) contains 1.1 × 10²2 Fe atoms. How many Fe atoms are in 4.9 g of Fe, which is the total amount of iron in the body of an average adult? Answer

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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- = T C 54°F Humid % Explanation O CHEMICAL REACTIONS Percent yield of chemical reactions 2 W |HC|HL| (@F11218HCHIHUSI https://www-awu.aleks.com/alekscgi/x/Isl.exe/10_u-IgNslkr7j8P3jH-IBMBkpcnaFu0F7Uj... FAX S Check بهر 3 * E $ X Gaseous ethane (CH₂CH3) reacts with gaseous oxygen gas (O₂) to produce gaseous carbon dioxide (CO₂) and gaseous water (H₂O). If 0.469 g of water is produced from the reaction of 0.90 g of ethane and 5.2 g of oxygen gas, calculate the percent yield of water. Round your answer to 2 significant figures. 4 0 d R DE C Ś 96 % 5 T 6 G H "4+ & 7 B N U 144 * 00 C | 141 | a A 8 1 D-II ( 9 r K M || a ✓ DDI O s ) B Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | | O F ▬▬▬▬▬▬ fo 1 11² a P MC - MC insert C + 3/5 = prt sc } ♡ 4 Privacy Center Privacy Center | Acces 1 0 Chisom Seve E d 11:10 10/22/20
O Grades | S b ichigo kur x : Parameter TU myTU | To x Content E Course Se x O Pearson MX I Course Ho X https://op x i openvellum.ecollege.com/course.html?courseld=17268703&OpenVellumHMAC=67fa50d4f674a1edc9e106b6c87d58d0#10001 Part A A certain compound is made up of one carbon (C) atom, two chlorine (CI) atoms, and one oxygen (O) atom. What is the chemical formula of this compound? Vote: You will need the periodic table for this question. Express your answer as a chemical formula.
ll T-Mobile Wi-Fi ? 2:31 PM @ 7 51% 23obrienm Fer... CHE222 Ch 9.2 Balancing & Classifying Chemical Reactions Types of Chemical Reactions Balancing Chemical Reactions 1)_ N, + H, - NH, 2) KCIO, → _ KCl + O, 3) NaCl + F, -__ NaF + Cl, 4) Н, + H̟0 5) _CH, + 0, →. СО, + H,O 6) _C,H, +_ 0, → __CO, + H,0 7) С,Н, + 0,- _CO, + H,0 8) P + _0, → __P,O, 9) Na + H,O → NaOH + H, 10) Ag,O → __Ag + _0, 11) S, + _SO, 12) K + MgBr,→ KBr + _Mg
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Vames and Ti... V At Your Service Inte... Sy log_{b}sqrt(b) - Sim... O (Last Day Promotio.. Kronos Workforce... Maame Acheampo.. MIDTERM MODER... [References] In a coffee-cup calorimeter, 100.0 mL of 1.1 M NAOH and 100.0 mL of 1.1 M HCl are mixed. Both solutions were originally at 20.3°C. After the reaction, the final temperature is 27.7°C. Assuming that all the solutions have a density of 1.0 g/cm" and a specific heat capacity of 4.18 J/°C g, calculate the ethalpy change for the neutralization of HCl by NaOH Assume that no heat is lost to the surroundings or to the calorimeter. AH= kJ/mol Submit Answer Try Another Version 1 item attempt remaining Previous Next, 8:31 PM 1へ梦口后会 12/5/2020 hing
Normal text Times New. - 12 BIUA + E- 1E = E - E - EEX ... .. 2 3 1 4 I I. c. Water from the sodium hydroxide solution 15 I . 16 ... I7 .. 6. Students collected the following temperature data for a coffee cup calorimetry experiment: Table 1. Temperature of solution with time for the reaction of baking soda with vinegar as measured in a coffee cup calorimeter. Time since start of reaction Temperatu re (°C) nent will (min) 24.6 0.5 20.9 1.1 20.1 1.4 19.3 1.7 18.5 2.1 18.4 2.5 18.3 2.9 18.2 3.5 18.4 a. Calculate AT and show your work. b. Is the reaction endothermic or exothermic? MacBook Air DII F6 80 F4 F3 &. $ 23 5 4 2 3 Y W K H G F S M V CO
2. Set the two equations equal and isolate In Ksp on one side of the equals sign by dividing both sides by (-RT). AG=RT'In Ksp=AH-TAS/-RT AG=In KSR=AH-TAS/-RT| 3. Create a graph using Excel plotting In Ksp on the y-axis and 1/T (make sure the units for temperature are Kelvin) on the x-axis. I In KSP 0 0.0029 -0.5 -1 -1.5 -2 -2.5 -3 -3.5 -4 -4.5 -5 0.003 0.0031 0.0032 1/T 0.0033 0.0034 0.0035 y=-2738x+5.075 R² = 0.9845 0.0036 a. Use the value obtained for the slope of the graph to solve for AH° using the equation derived in Question 2.
"Each pi-l c-ntains 12.5 - of act-ve -ngre-dient. Adm-i-ister thr-e tim-s -aily unt-l - ymptoms dimi-ish." ) to increase the volume of of Sample gas at room tempt.(25°C) from 1.50L to 2.50L under constant pressure conditions, what does tle temp of the .is the gas need to be raised t in °C ? AS
By HGG) +3029)-B20g6) + 3H20G) AH=-2035 kJ What is AH when 10-0g 82H6 is.mixed with 10-0g 02 ?
D²1 Quizzes - Spring 2023 SPE XQ Ch 12-14, 18 Public speakin x с app.101edu.co < + 1 Ch 12-14, 18 Public speakin x + Balance the following chemical equation (if necessary): V₂O(s) + HCl(aq) → VOCI (s) + H₂O(1) 2 04- Reset 0 ♡ 2 3 VOCI ( ) 4 D2L Quiz 10-12 - Spring 2023 C X Time's Up! H₂O □ 5 n 0₂ ☐3 04 05 06 л O) 6 + 2+ 7 07 V.O. 2 5 ल = (s) (1) y google - Yahoo Search Rest X ³+ 4+ 8 9 ☐8 • x H₂O 0 (g) (aq) HCI 口。 Delete Aktiv Chemistry G + Update: Submit
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