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##### E. Titration calculations 1. A 25.0-ml sample of 0.100 M HCl is titrated with 0.125 M...

E. Titration calculations 1. A 25.0-ml sample of 0.100 M HCl is titrated with 0.125 M NaOH. How many milliliters of the titrant will be need to reach the equivalence point? 2. A 25.0-ml sample of 0.100 M Ba(OH)2 is titrated with 0.125 M HCI. How many milliliters of the titrant will be need to reach ...

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##### Suspended from the ceiling of an elevator is a simple pendulum of length $L .$ What is the period of this pendulum if the elevator (a) accelerates upward with an acceleration $a,$ or (b) acceleratesdownward with an acceleration whose magnitude is greater thanzero but less than $g$ ? Give your answer in terms of $L, g,$ and $a$ .

Suspended from the ceiling of an elevator is a simple pendulum of length $L .$ What is the period of this pendulum if the elevator (a) accelerates upward with an acceleration $a,$ or (b) accelerates downward with an acceleration whose magnitude is greater than zero but less than $g$ ? Give your an...

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##### Question 41 ptsBalance the following skeleton reaction in acidic solution (if the coefficient is 1,put 1;if the coefficient is 0, put e 0).Ag20 (s)I(aq}Ht(aq)HzO () ~Ag (s)HzO ()Cu(sOH(2alCul (s) -OH (2q)

Question 4 1 pts Balance the following skeleton reaction in acidic solution (if the coefficient is 1,put 1;if the coefficient is 0, put e 0). Ag20 (s) I(aq} Ht(aq) HzO () ~ Ag (s) HzO () Cu(s OH(2al Cul (s) - OH (2q)...

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##### Find the inverse of the matrix A, if it exists.A=2 3 2 5 31 1 2 A-1 = 0 2 5 8 3 30 B. 0 -8 A-1 , -2 -3 -2 -5-40 16 13 -50 D. A-1 does not exist.A-1 =

Find the inverse of the matrix A, if it exists. A= 2 3 2 5 3 1 1 2 A-1 = 0 2 5 8 3 3 0 B. 0 -8 A-1 , -2 -3 -2 -5 -40 16 13 -5 0 D. A-1 does not exist. A-1 =...

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##### How do you simplify #cot4theta-cos2theta# to trigonometric functions of a unit #theta#?

How do you simplify #cot4theta-cos2theta# to trigonometric functions of a unit #theta#?...

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##### Hundreds of different reactions can occur in the stratosphere, among them reactions that destroy the earth's ozone layer. The table below lists several (second-order) reactions of Cl atoms with ozone and organic compounds; each is given with its rate constant. $$\begin{array}{ll}\hline & \text { Rate Constant } \\\text { Reaction } & \left(298 \mathrm{K}, \mathrm{cm}^{3} / \mathrm{molecule} \cdot \mathrm{s}\right) \\\hline \text { (a) } \mathrm{Cl}+0_{3} \longrightarrow \mathrm{Cl}

Hundreds of different reactions can occur in the stratosphere, among them reactions that destroy the earth's ozone layer. The table below lists several (second-order) reactions of Cl atoms with ozone and organic compounds; each is given with its rate constant. $$\begin{array}{ll}\hline & \t...

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##### Why should a firm shutdown if both its average total costs and average variable costs exceed the market price?

Why should a firm shutdown if both its average total costs and average variable costs exceed the market price?...

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##### Please help with 5.34 , 5.35 , 5.36 and 5.45 4. Problem 5.34 5.34 For each...

please help with 5.34 , 5.35 , 5.36 and 5.45 4. Problem 5.34 5.34 For each of the cases below, determine if the heat engine satisfies the first law (energy equation) and if it violates the second law. a. Qu = 6kW, 0. = 4kW, W = 2 kW b. Qu = 6kW, = 0kW, W = 6kW c. Qu=6kW, 2. = 2 kW, W = 5kW d. Qu=...

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##### Sample of 500 students selected Irom afinite population of 15,000 students avcrage SAT score What correction Iactor should be used construct 9970 canfidence Interval for the compute the standard error? 0,9832 0.9499 2,5760 Cannot be derermined

sample of 500 students selected Irom afinite population of 15,000 students avcrage SAT score What correction Iactor should be used construct 9970 canfidence Interval for the compute the standard error? 0,9832 0.9499 2,5760 Cannot be derermined...

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##### So the question is: What is the difference between an ionic bond and a covalent bond

So the question is: What is the difference between an ionic bond and a covalent bond? My answer is: In an ionic bond, the electrons are moved from one atom to another. In a covalent bond, the electrons are shared. Is this OK? Thanks-MC...

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##### Consider continuous random variable X that is uniformly distributed with the probability density function given below random sampling of size N 89 is collected for this random variable determine the probability that the mean of this sample is between 0.9 and 2.1_{0.35 1 <x < 3.86 f(x) elsewhere

Consider continuous random variable X that is uniformly distributed with the probability density function given below random sampling of size N 89 is collected for this random variable determine the probability that the mean of this sample is between 0.9 and 2.1_ {0.35 1 <x < 3.86 f(x) elsewhe...

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##### Problem(25 points Tast Iha series for convergence divergence1.5.9 7 . 9 . 111.0.0. 13 7 . 0 . 11 . 137 . 9Use ihe Selectevaluale:lin(Note" Use INF for an infinite limit )Since Ihe limiit is SelectSelectNote: You can eam parial credit on this problem:

Problem (25 points Tast Iha series for convergence divergence 1.5.9 7 . 9 . 11 1.0.0. 13 7 . 0 . 11 . 13 7 . 9 Use ihe Select evaluale: lin (Note" Use INF for an infinite limit ) Since Ihe limiit is Select Select Note: You can eam parial credit on this problem:...

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##### Jeremy has a fish tank that has a 40-cm by 70-cm rectangular base

Jeremy has a fish tank that has a 40-cm by 70-cm rectangularbase. The water is 25 cm deep. When he drops rocksinto the tank, the water goes up by 2 cm. What is the volumein liters of the rocks...

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##### While working at the bench, you forgot to label two tubes of DNA strands. You know...

While working at the bench, you forgot to label two tubes of DNA strands. You know the sequences of each DNA strand and that they contain different amounts of G:C base pairs, but you do not know which strand is in which tube. Describe how you can use spectrophotometry to properly label your two tube...

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##### Luke’s Lubricants starts business on January 1. The following operations data are available for January for...

Luke’s Lubricants starts business on January 1. The following operations data are available for January for the one lubricant it produces: Gallons Beginning inventory 0 Started in January 159,000 Ending work-in-process inventory (70% complete) 11,000 C...

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##### Areason for the general preference of probability sampling methods is thatNone of the answers iS correctprobability sampling methods are less likely than nonprobability sampling methods to introduce sampling errorprobability sampling methods are less likely than nonprobability sampling methods to introduce nonsampling EffOrprobability sampling methods are less Lkely than nonprobability sampling methods to introduce target crror

Areason for the general preference of probability sampling methods is that None of the answers iS correct probability sampling methods are less likely than nonprobability sampling methods to introduce sampling error probability sampling methods are less likely than nonprobability sampling methods to...

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##### 5. 10 points Two energy levels Ej and E2, with A = E2 - E1, are...

5. 10 points Two energy levels Ej and E2, with A = E2 - E1, are populated by N distinguishable non-interactive particles at temperature T. a) Find the average energy of the system. (3 pts) b) Consider the limits T – 0 and T - and find the average energy per particle in these two limits to the ...

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##### U8 HW Question 11 - Challenge UnansweredWhen potassium iodide reacts with lead(Il) nitrate, yellowprecipitate of lead iodide Pblz and potassium nitrate areproduced_ Consider this reaction to answer the questionsbelow:When properly balanced the coefficient in front of potassiumiodide isthe coefficient in front oflead(Il) nitrate isthe coefficient in frontof lead iodide isand the coefficient infront of potassium nitrate isIf 0.78 g of lead(Il) iodide was produced and you had anexcess of potassium

U8 HW Question 11 - Challenge Unanswered When potassium iodide reacts with lead(Il) nitrate, yellow precipitate of lead iodide Pblz and potassium nitrate are produced_ Consider this reaction to answer the questions below: When properly balanced the coefficient in front of potassium iodide is the coe...

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##### If fs,y) = 9x2 +4x2y2_ y2 , find fx (1,1) A [ 3 B.None of these C.18 0.2 6 E.[0

If fs,y) = 9x2 +4x2y2_ y2 , find fx (1,1) A [ 3 B.None of these C.18 0.2 6 E.[0...

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##### 3. (1, ~I) is in cylindrical coordinates_ Convert it to cartesian aIdspherical coord Im((S_

3. (1, ~I) is in cylindrical coordinates_ Convert it to cartesian aIdspherical coord Im((S_...

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##### Dr. Warren's colleagues did not believe there were bacteria inthe stomach. Why do you think other pathologists did not believebacteria were in the stomach biopsies?A. Bacteria are never found inside the human body.B. The pH of the stomach is too acidic for any bacteria tosurvive.C. No one else had reported seeing bacteria in their biopsysamples.D. Ulcers and stomach cancer are caused by age, stress and diet-bacteria have nothing to do with the problems the patients came tothe hospital for.

Dr. Warren's colleagues did not believe there were bacteria in the stomach. Why do you think other pathologists did not believe bacteria were in the stomach biopsies? A. Bacteria are never found inside the human body. B. The pH of the stomach is too acidic for any bacteria to survive. C. No one...

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##### Provide: a) moment diagram for the primary structure for the applied loads b) moment diagrams for...

Provide: a) moment diagram for the primary structure for the applied loads b) moment diagrams for the primary structure for each virtual load used to find flexibility coefficients c) a table indicating the segments you would use and the limits of each (you do not need to write M and m equations) d) ...

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##### Which are true about direct repair of DNA? O The damaged base is excised and a...

Which are true about direct repair of DNA? O The damaged base is excised and a new segment of DNA is synthesized to fill in the gap. Error-prone DNA polymerases are used to insert a nucleotide opposite to the damaged base. O A damaged base is restored to its correct structure without removing it fro...

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##### A person 2.1 m tall stands 0.75 m from a reflecting globe in agarden.If the diameter of the globe is 15 cm, where is the image of theperson, relative to the surface of the globe?Express your answer using two significantfigures.How large is the person's image?Express your answer using two significantfigures.

A person 2.1 m tall stands 0.75 m from a reflecting globe in a garden. If the diameter of the globe is 15 cm, where is the image of the person, relative to the surface of the globe? Express your answer using two significant figures. How large is the person's image? Express your answer using two...

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##### Display the graphs of the given functions on a graphing calculator. Use appropriate window settings.$$y=x^{4}-2 x^{3}-5$$

Display the graphs of the given functions on a graphing calculator. Use appropriate window settings. $$y=x^{4}-2 x^{3}-5$$...

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##### Aresearcher wanled detemine if carpeted uncarpcled HIJS- contain more bacteria . The table shows the results (or Uie number of bacteria cubic Iool lax bolh type s of roone; namal probability plot and boxplot indcate that the dala are appraximately normally distrbbuted with no outfiers Da carpeled rooms have more badetta Ihan uncarpeted rooms at the 05 level sigrificance?Ful data & UncupetedCarpeled73813.8clck te icon vicu the Student' 5 (-disubution tablaWhat are the null Jrid altemati

Aresearcher wanled detemine if carpeted uncarpcled HIJS- contain more bacteria . The table shows the results (or Uie number of bacteria cubic Iool lax bolh type s of roone; namal probability plot and boxplot indcate that the dala are appraximately normally distrbbuted with no outfiers Da carpeled ro...

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##### Assume that f (2) then Re(f(2)) and Im( f (2) )are 2+31-3 Re( f (2)) = (-3)+yIm(f (2)) = (= 3)7X+3 Re(f(2)) = (1+3)"Im( f (2)) =x+3 Re( f (2)) = 6+3)7Im( f (2)) = (x+3)"X+3 Re(f(2)) = (1+3)+yIm(f (2)) = 6+3)

Assume that f (2) then Re(f(2)) and Im( f (2) )are 2+3 1-3 Re( f (2)) = (-3)+y Im(f (2)) = (= 3)7 X+3 Re(f(2)) = (1+3)" Im( f (2)) = x+3 Re( f (2)) = 6+3)7 Im( f (2)) = (x+3)" X+3 Re(f(2)) = (1+3)+y Im(f (2)) = 6+3)...

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##### The probability that a disease- A diagnostic test for a certain disease is applied to individuals...

the probability that a disease- A diagnostic test for a certain disease is applied to individuals kronn to not have the disease. Let x = the number among then test results that are positive (indicating presence of the disease, so is the number of false positives) and free individual's test resul...

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##### (15 points) A 50 kg box is being 300 N pushed up 20" ramp with a force of 300 N parallel to the ramp (a) Draw free body diagram for the forces acting On the box. 209 () Clearly identify your coordinate system and resolve all the forccs into components. Make table t0 organize it alll Calculate the normal forcc; being clear to show how You were able to find it Words and mathl (d) Assuming that the box is moving ' up the rump with constant velocity, solve for the value of the coeflicient

(15 points) A 50 kg box is being 300 N pushed up 20" ramp with a force of 300 N parallel to the ramp (a) Draw free body diagram for the forces acting On the box. 209 () Clearly identify your coordinate system and resolve all the forccs into components. Make table t0 organize it alll Calculate t...

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##### Find the limit, Use L'Hopitals rule where appropriate.sin * lim-r"+2r-8 lim T-2 lim;lim"-'-hr' lim!-x+hxp cos7lim cosmx cosnxliml-1 xsin x lim_ cosr-1lim] xe= ~J lim 7 lim Vi+r-[ lim (b) limre"limsin 4x lim- tan 5x lim2x-sin 2r+coslime In xlim2x & In(cosx) lim X01-cos4h lim cos" 6h - 14" _ 3* limlim;_ r+25 cosbr-cos lim- sin" xtan x - sin * limAnswer :60, {62-m')-3.{.1,22,1.14.1.0,0,0,0,0,-}.-2,bG)_ -40, -4

Find the limit, Use L'Hopitals rule where appropriate. sin * lim- r"+2r-8 lim T-2 lim; lim"-'-hr' lim!-x+hxp cos7 lim cosmx cosnx liml-1 xsin x lim_ cosr-1 lim] xe= ~J lim 7 lim Vi+r-[ lim (b) limre" lim sin 4x lim- tan 5x lim2x-sin 2r+cos lime In x lim2x & In(cosx)...

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##### In reviewing a scatter plot for a set of data, no relation is visible among the...

In reviewing a scatter plot for a set of data, no relation is visible among the data points. Should linear regression be used to further analyze the data? Explain why or why not....

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##### Please help 10. Consider each of the following pairs of aqueous solutions being mixed. On the...

please help 10. Consider each of the following pairs of aqueous solutions being mixed. On the basis of the solubility rules: Either .Write a full balanced chemical equation for the double displacement reaction that takes place indicating the precipitate formed by adding the (s) state symbol in th...

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##### Find the arc length of the graph of the function y 16].3/2 10 over the interval [14 ,

Find the arc length of the graph of the function y 16]. 3/2 10 over the interval [14 ,...