## Question

###### 53. A piece of zinc reacts completely with hydrochloric acid, HCltal to produce an aqueous solution of zinc chloride, ZnClzlwal and hydrogen ga5 Use the data shown below to determine the enthalpy of reaction per mole of zinc: AH", of HCloq) -167.2 kllmol AH , of ZnClzlaa) 488.2 kJlmol Znt) - ZHCIloq) + ZnClzlaq) Hzle)b. What mass of zinc must be used for 123 kJ ofheat to be given off?with according to the following unbalanced equation: 54. Ammonia reacts oxyben NHilal Ozla) $ NOlel + H;Olal

53. A piece of zinc reacts completely with hydrochloric acid, HCltal to produce an aqueous solution of zinc chloride, ZnClzlwal and hydrogen ga5 Use the data shown below to determine the enthalpy of reaction per mole of zinc: AH", of HCloq) -167.2 kllmol AH , of ZnClzlaa) 488.2 kJlmol Znt) - ZHCIloq) + ZnClzlaq) Hzle) b. What mass of zinc must be used for 123 kJ ofheat to be given off? with according to the following unbalanced equation: 54. Ammonia reacts oxyben NHilal Ozla) $ NOlel + H;Olal tofind the enthalpy of reaction for this reaction; Use standard molar enthalpies of formation

## Answers

#### Similar Solved Questions

5 answers

##### Bullet m # 302 with hits speed 3o0m/s and mass length ballistie pendulum with in it. 4m1 and When mass Skg and lodges swings the bullet hits the pendulum and up from the equilibrium position reaches an angle 0 and height h at its maximum_ a) Determine the velocity of the whole h system after the collision. (Spts) 6) Determine the maximum height h of the system: (4pts) c) Determine the angle (Spts)Is) (01o3 ks)+ (o >5k9 0 > k9 4 5 k9

bullet m # 302 with hits speed 3o0m/s and mass length ballistie pendulum with in it. 4m1 and When mass Skg and lodges swings the bullet hits the pendulum and up from the equilibrium position reaches an angle 0 and height h at its maximum_ a) Determine the velocity of the whole h system after the col...

5 answers

##### Uso the Inlegral Test delermI U whother Ine Inhnule seties conveigont divergent De sure check Ihat Ine cond | or1s Ihe Inlegral Test &re sairsiied4k+7Selac iho coroct chake below and, Mucuntnttho Aneulamcomploto your choke(Iype eraci answel )Tha sertes conwverde; bccduSUClick to sclect and cnler Your answet(s) and Ihcn clck Clee

Uso the Inlegral Test delermI U whother Ine Inhnule seties conveigont divergent De sure check Ihat Ine cond | or1s Ihe Inlegral Test &re sairsiied 4k+7 Selac iho coroct chake below and, Mucunt nttho Aneulam comploto your choke (Iype eraci answel ) Tha sertes conwverde; bccduSU Click to sclect an...

5 answers

##### An 1865-kg airplane starts at rest on an airport runway at sea level:Part AWhat the change in mechanical energy of Ihe alrplane it climbs to cruising altilude of 2420 m and maintains constant speed of 95.5 m/8AZdXOnAE = 5.27 104MJSubmitPrevious Answers Request AnswerIncorrect; Try Again; attempts remainingPart B

An 1865-kg airplane starts at rest on an airport runway at sea level: Part A What the change in mechanical energy of Ihe alrplane it climbs to cruising altilude of 2420 m and maintains constant speed of 95.5 m/8 AZd XOn AE = 5.27 104 MJ Submit Previous Answers Request Answer Incorrect; Try Again; ...

5 answers

##### The height at time (in seconds) of mass_ oscillating at the end of spring- is s(t) 300 64 sin(t) cm_ Find the velocity and acceleration att = =cm/ seccm/sec2

The height at time (in seconds) of mass_ oscillating at the end of spring- is s(t) 300 64 sin(t) cm_ Find the velocity and acceleration att = = cm/ sec cm/sec2...

5 answers

##### Question 26Alternative splicing of an eukaryotic gene can occur if:If there more than one consensus sequence where the spliceosomeThere are multiple transcription factors affecting intron splicingThcre is at least one intronThere are more than two spliceosomes available

Question 26 Alternative splicing of an eukaryotic gene can occur if: If there more than one consensus sequence where the spliceosome There are multiple transcription factors affecting intron splicing Thcre is at least one intron There are more than two spliceosomes available...

5 answers

##### Evaluate the following limit, if it exists. 22 3x lim x-3 12 4x + 3

Evaluate the following limit, if it exists. 22 3x lim x-3 12 4x + 3...

5 answers

##### Assignment 4.1: Polynomial Functions (continued) 86) =x' 512 +x - 7flr) =15 31 _ 1 _ 7

Assignment 4.1: Polynomial Functions (continued) 86) =x' 512 +x - 7 flr) =15 31 _ 1 _ 7...

5 answers

##### 8JluFor the following tableJ4 Wpx AD plClassFreq2i0 uuslellipiii gpthe angle of dass' whenyou build a Pie chati5Jubui goolj1none126180

8Jlu For the following table J4 Wpx AD pl Class Freq 2i0 uuslell ipiii gp the angle of dass' whenyou build a Pie chati5 Jubui goolj1 none 126 180...

5 answers

##### To test this series for convergence4n + 1 5n n =1You could use the Limit Comparison Test, comparing it to the series n =where r=Completing the test, it shows the series: Converges Diverges

To test this series for convergence 4n + 1 5n n =1 You could use the Limit Comparison Test, comparing it to the series n = where r= Completing the test, it shows the series: Converges Diverges...

1 answers

##### Find an LU factorization of the given matrix. $$\left[\begin{array}{rrrr} 2 & 2 & 2 & 1 \\ -2 & 4 & -1 & 2 \\ 4 & 4 & 7 & 3 \\ 6 & 9 & 5 & 8 \end{array}\right]$$

Find an LU factorization of the given matrix. $$\left[\begin{array}{rrrr} 2 & 2 & 2 & 1 \\ -2 & 4 & -1 & 2 \\ 4 & 4 & 7 & 3 \\ 6 & 9 & 5 & 8 \end{array}\right]$$...

5 answers

##### Assume pizza rEstauranthas Mean dclivery time 0t 30 minutes Krilh Ihese (mnes follox an approximate normal dstrilsution; Stindard devlation 0*4 95 minules Furthermore, te rextaurani Ccunc? Eelic ! One delivery iS chosen at randomn anaus time /> erdmra| Find the probability Of cach; t0 4 decimal positionsThz ( delwvery toor more tan 32.535 minutes.The delivery tme vads betvreen 26 ana 32 106 minutes

Assume pizza rEstauranthas Mean dclivery time 0t 30 minutes Krilh Ihese (mnes follox an approximate normal dstrilsution; Stindard devlation 0*4 95 minules Furthermore, te rextaurani Ccunc? Eelic ! One delivery iS chosen at randomn anaus time /> erdmra| Find the probability Of cach; t0 4 decimal p...

5 answers

##### Part 1 (0.5 point)hi See Periodic TableDonot include spaces or multiplication signs in your answerWhat is the rate-law cxpression for thereaction? Do not add multiplication symbols to your answer or states of matterRatePart 2 (0.5 point)What Is the value ofthe rate constant at 1200 K?

Part 1 (0.5 point) hi See Periodic Table Donot include spaces or multiplication signs in your answer What is the rate-law cxpression for thereaction? Do not add multiplication symbols to your answer or states of matter Rate Part 2 (0.5 point) What Is the value ofthe rate constant at 1200 K?...

5 answers

##### IEMSSUMMARYYou have attempts remaining:Suppose f(t) = 2t ~ 8)-1/2(a) Find the derivative of f. f()(6) Find an equation for the cangent line to the graph of y f(t) ac the point (t,y) (33,2/5): Tangent line:

IEMS SUMMARY You have attempts remaining: Suppose f(t) = 2t ~ 8)-1/2 (a) Find the derivative of f. f() (6) Find an equation for the cangent line to the graph of y f(t) ac the point (t,y) (33,2/5): Tangent line:...

5 answers

##### 0,78M Hcllaql at 25*C and 06 atm wnat /stne UONmd of hydrogen gas praduced in Mers if the 1,55 g of Mgls} = are mlxed with 145 ML Jim hydrogen ga5} collected ver water? Mg(s) + 2 HCWaq) = MecI Zaq) 2(g) BHrxn 467 " Jtrtol 'KI (oQ} J

0,78M Hcllaql at 25*C and 06 atm wnat /stne UONmd of hydrogen gas praduced in Mers if the 1,55 g of Mgls} = are mlxed with 145 ML Jim hydrogen ga5} collected ver water? Mg(s) + 2 HCWaq) = MecI Zaq) 2(g) BHrxn 467 " Jtrtol ' KI (oQ} J...

5 answers

##### (f) The students return to the ground and fire the ball at different angles Fointa from ground level but with the same launch velocity: measuring the horizontal distance D on each trial: The students find that the distance D is short if the angle of launch is lose to zero, maximum at 45 degrees and short again if the angle close to 90 degrees: In clear; coherent; paragraph-length response that may include references to equations or physical principles; explain why the distance Dis short for lau

(f) The students return to the ground and fire the ball at different angles Fointa from ground level but with the same launch velocity: measuring the horizontal distance D on each trial: The students find that the distance D is short if the angle of launch is lose to zero, maximum at 45 degrees and...

5 answers

##### In the figure; point P1 is at distance R = 10.4cm on the perpendicular bisector of a straight wire of length L = 17.8 cm carrying current i =68.1mA (Notethat the wire is not long ) What is the magnitude of the magnetic fieldat P1 due toi?NumberUnits

In the figure; point P1 is at distance R = 10.4cm on the perpendicular bisector of a straight wire of length L = 17.8 cm carrying current i =68.1mA (Notethat the wire is not long ) What is the magnitude of the magnetic fieldat P1 due toi? Number Units...

5 answers

##### Chemicak engineer must Iculate the maximum safe operating temperature high-pressure gas reaction Vessel The vesse Measures wide and 37.2 cm high_ The maximum safe pressure inside the vesse has been measured to be 40 MPastainless-steel cylinder thatFor certain reaction the vessee may contain Up to 4.44 kg of sulfur hexafluoride gas. Calculate the maximum safe operating temperature the engineer should recommend for this reaction Write vour answer degrees Celsius_ Round vour answerto significant di

chemicak engineer must Iculate the maximum safe operating temperature high-pressure gas reaction Vessel The vesse Measures wide and 37.2 cm high_ The maximum safe pressure inside the vesse has been measured to be 40 MPa stainless-steel cylinder that For certain reaction the vessee may contain Up to ...

5 answers

##### Point) Solve the differential equation dy dx 9yFind an implicit solution and put your answer in the following form: constant: help (formulas)Find the equation of the solution through the point (x,y) = (3,1). help (equations)Find the equation of the solution through the point (x,Y) = (0, -5). Your answer should be of the form y = f(x)_ help (equations)

point) Solve the differential equation dy dx 9y Find an implicit solution and put your answer in the following form: constant: help (formulas) Find the equation of the solution through the point (x,y) = (3,1). help (equations) Find the equation of the solution through the point (x,Y) = (0, -5). Your...

5 answers

##### If the intensity of the sound by an engine is 10-2 Wm-2 and Iwhisper 10-12 Wm-2 then the noise of the engine in dB isa. 100b. 120c.140d.20

If the intensity of the sound by an engine is 10-2 Wm-2 and Iwhisper 10-12 Wm-2 then the noise of the engine in dB is a. 100 b. 120 c.140 d.20...