None Zinc metal reacts with hydrochloric acidaccording to the following balanced equation.Zn(s) + 2HCl(aq) -> ZnCl2(aq) + H2(g)When 0.104g of Zn(s) is combined with enoughHCI to make 54.5 mL of solution in a coffee - cupcalorimeter, all of the zinc reacts, raising thetemperature of the solution from 22.4 Celcius to24.7 Celcius.Find the delta Hrxn (in kJ/mol) for this reactionas written. (Use 1.0g/mL for the density of thesolution and 4.18 J/g *Celcius as the specific heatcapacity.)

The heat released by the reaction is used to increase the temperature of the solution. Given:Mass…

Answered: Zinc metal reacts with hydrochloric…

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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[Review Topics] [References] Use the References to access important values if needed for this question. Ethanol, C2H,O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. Ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to burn more efficiently in combustion engines. The heat of combustion of ethanol is 326.7 kcal/mol. The heat of combustion of hexane, C,H14, is 995.0 kcal/mol. How much energy is released during the complete combustion of 479 grams of hexane ? kcal Assuming the same efficiency, would 479 grams of ethanol provide more, less, or the same amount of energy as 479 grams of hexane? Submit Answer Retry Entire Group 9 more group attempts remaining
وچی NaOH, H2O, haat NaOH, H2O, heat پہلے 0 Na Na HO OH
1. Statement 1: beside its value for jewelries currency and electronics gold is also important in the health profession. Statement 2: Salts of Au+ is used in the treatment of certain types of rheumatoid arthritis2.Statement 1: Cellular restoration allows organisms to liberate the energy stored in the chemical bonds of glucose. Statement 2: C6H12O6 + 6O2 --> 6CO2 + 6H2O + 36 ATP, In this reaction glucose is reduce and oxygen is oxidized.3. Statement 1: The reaction of a metal with either an acid or a metal salt is called displacement reactions because the ion in the solution is to replace through reduction of an element. Statement 2: When metals undergo displacement reactions with acids, salts and hydrogen gas is produced. A - If the first statement is TRUE and the second statement is FALSE B - If the first statement is FALSE and the second statement is TRUE C - If both statements are TRUE D - If both statements are FALSE
[References] Use the References to access important values if needed for this question. Expressing amounts of energy in different energy units is necessary to solve many chemistry problems. For practice, complete the following table. The Joule (J) is the SI unit of energy. 1 calorie (cal) = 4.184 J J cal kJ 568 149 0.807 Submit Answer Try Another Version 10 item attempts remaining pt pt pt Previous Ne re to search DELL
500.0 mL of 0.100 mol·L HCl(aq) was added to a high quality insulated calorimeter containing 500.0 mL of 0.100 mol·LNaOH(aq). Both solutions had a density of 1.000 g·mL and a specific heat of 4.184 J·g ·K . The calorimeter had a heatcapacity of 850.0 J·K . The temperature of the entire system rose from 25.50 C to 26.05 C.Calculate the heat of reaction. Thank you!
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Endothermic has a -AH True False
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பட G H | J K L Σ N P Q R 139 140 141 138 15. A Consider two zero coupon bonds, S & L that represent a short-term and long-term maturity bond respectively. The two bonds have the following features: Bond S: Maturity = 3 years YTM = 6.73% YTM = 6.73% Bond L: Maturity = 15 years Par = Par = $1,000 $1,000 Price = Price = $822.51 $376.45 Which bond, the short-term bond S or the long-term bond L, exhibits a greater price change when both yields increase to 7.73%? 142 143 Price of Bond S when YTM = 7.73%: ? 144 Price of Bond L when YTM = 7.73%: ? Price change of S = Price change of L = ? ? Answer: 145 146 147 148 A B C D E 136 137 ? S T U V 150 151 152 149 16. A Consider two coupon bonds, HC and LC, with the same maturity but the different coupon rate. HC/LC represent a High/Low Coupon, respectively. Assume m = 1. The two bonds have the following features: Bond HC: Maturity = 10 years $40 Par = $1,000 $20 Bond LC: Maturity=10 years PMT = PMT = Par = $1,000 YTM = 7.00% YTM = 4.00% Price =…
510. In an experiment, liquid heptane, C₂H₁6(1), is completely combusted to produce CO₂(g) and H₂O(1), as represented by the following equation. zemina inst C₂H₁6) + 11 O₂(g) →7 CO₂(g) + 8 H₂O(1) The heat of combustion, AH comb, for one mole of C₂H₁6() is -4.85 x 10³ kJ. Determine the enthalpy of formation, AHºf, for C₂H16(1)

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