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Answer the questions with reasonable details 21. For the reaction: Zn + 2HNOZn(NOs+H2, AH 100 kJ...
Consider the following reaction: CO(g) + 2 H2(g) → CH2OH (9) AH = -90.7 kJ Calculate the amount of heat transferred when 107.3 g of CH2OH is synthesized by the above reaction at constant pressure. Select one: oa. -90.7 kJ ob. 9.732 x 102 kJ O C. 3.037 x 102 kJ O d. -3.037 x 102 kJ o e. 9.732 x 10 kJ Consider the following reaction: CO(g) + 2 H2 (g) → CH3OH (9) AH = -90.7 kJ For...
Hydrogen gas can be prepared by reaction of zinc metal with aqueous HCl: Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g) How many liters of H2 would be formed at 680 mm Hg and 17 ∘C if 27.0 g of zinc was allowed to react? How many grams of zinc would you start with if you wanted to prepare 6.00 L of H2 at 400 mm Hg and 35.0 ∘C?
Hydrogen gas can be prepared by reaction of zinc metal with aqueous HCl: Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g) Part A: How many liters of H2 would be formed at 538 mm Hg and 16∘C if 22.0 g of zinc was allowed to react? Part B: How many grams of zinc would you start with if you wanted to prepare 5.65 L of H2 at 350 mm Hg and 34.5 ∘C?
The standard enthalpy change for the following reaction is -415 kJ at 298 K. Zn(s) + Ch(g) → ZnCl2() AH° = -415 kJ What is the standard enthalpy change for the reaction at 298 K? ZnCl(s) — Zn(s) + Cl2(g) The standard enthalpy change for the following reaction is -50.6 kJ at 298 K. N2H40 - N2(g) + 2 H2(g) AH° = -50.6 kJ What is the standard enthalpy change for this reaction at 298 K? N2(g) + 2 H2(g)...
Consider the following reaction: CH3OH(9) CO(9)+2H (9) AH = +90.7kJ AH = 130 kJ Previous Answers Correct Part For a given sample of CH,OH the enthalpy change on reaction is 185 kJ How many grams of hydrogen gas are produced? I AED ROO? Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part D What is the value of AH for the reverse of the previous reaction? AED ROO? AH. Submit Previous Answers Request Answer X Incorrect;...
Please answer questions from Q1 to Q5. Thank you.
Solve the following questions; show all your work details. NO credits will be added if short answers are submitted. Q1) Automobiles air bags are inflated by nitrogen gas generated by the rapid decomposition of sodium azide, NaN3: NaN3 (8) ► Na(s) + N2 © (NOT balanced) If an air bag has a volume of 50.0 L and is to be filled with nitrogen gas at 0.828 atm and 26°C, how many...
Chapter 5 and Chapter 10 Problem solving (please practice the following questions and make sure that you understand the principles behind: you can find Ar from textbook or website I. A 145 g sample of copper metal at 100.0°C is placed into 250.0 g of water at 25.0°C in a calorimeter. When the system reaches thermal equilibrium, the temperature of the water in the calorimeter is 28.8°C. Assume the calorimeter is perfectly insulated. What is the specific heat capacity of...
please answer the questions based on the reaction and the
result provided for the experiment.
reaction is:
Mg (s) + 2HCl (aq) —-> MgCl2 (aq) +H2 (g)
the first picture is the data collected for the
experiment.
Data: Trial O. o 344 36.00 mL 20.00 cm Trial #1 o.σ 39万 4o.81 m1 4.20 m Mass magnesiu n lume Height of wates Column (Cim) (Distance baborr wte eel wader temperature C) 22.6 22.2°c Baranetric pmesureH Post-Lab Questions (Please type your answers.)...
1) One hundred (100) ml of a 1.00 M solution of HCl is diluted with water to prepare a 0.200 M solution. What is the volume of the resulting 0.200 M solution? Or asked another way, to what volume must the original solution be diluted? (3 points) 2) Lithium hydroxide, LiOH, is used in spacecraft to absorb the carbon dioxide exhaled by astronauts. Given 1.3 kg of LiOH, how many kg of CO2 can be absorbed? (10 Pts. The reaction...
Need help with the following THREE questions (22,23, &
24)
22. A 20 gram iron block at an init 8°C 20 18 ifon block at an initial temperature of 20°C is placed in 20 grams of water at an temperature of 80°C. Assuming no heat is lost to the surroundings, what would be the final temperature of the system once you reach thermal equilibrium cron = 0.449 re 449 460 cwater = 4.18 8.98J 13.6) A. 74.2°C B. 80.0°C C....