Learning Task 3 Directions: Write v if the sample is matter and X if not. Write your answers on a separate sheet of paper. Sample a. Air inside the ball b. Flour c. Human Heart d. Light e. Leaves f. Smoke g. Sound h. Toy

Q: Show the mechanism and explain how the Ala-Val-Ile peptide bond is formed.

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Q: 24. Which of the following is the 1,4-addition product of Brz to the molecule given below? Br Br Br ...

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Q: 1. Name these aromatic compounda properly. a) b) NHz

A: (1) Given that -  Aromatic organic compounds -  (a) This compound contains acetophenone as a main co...

Q: For the following pair of reaction diagrams, identify which of the pair is catalyzed. Explain your r...

A: Catalysts are the substances that speed up biochemical reactions. These do not alter the enthalpy an...

Q: app. ledu.co Submit Question 16 of 25 A reaction was shown to follow second-order kinetics. How much...

A: Chemical kinetics is defined as branch of chemistry which is related to rates of chemical reactions.

Q: A signal for an allylic proton was found to come at 2.43 PPM using a 300 MHz NMR instrument. What wo...

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Q: Jamel is to receive Cleocin 275 mg IV for 6.00 hr. The concentration of the solution is 5.00 mg/mL. ...

A: Given :-  Amount/mass of drug = 275 mg  Concentration of solution = 5.00 mg/mL  To calculate :-  Vol...

Q: What is the vapor pressure of a solution comprised of 32.3g NH4NO3 in 3.5L of water with a density o...

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Q: Which diene and dienophile would react to give the following Diels-Alder product? OH O OH HO OH HO O...

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Q: radiation having a wavelength of 0.0711 nm was used. A) Determine whether this metal's crystal struc...

A: all details are shown below.  

Q: 14.48 A compound (C3H10O) has the IR and 'H NMR spectra presented in O Figure 14.51. What is its str...

A: The structure of the following is:  

Q: A certain catalyzed reaction is Known to have an activation energy Ea=29.0 kJ/mol. Furthermore, the ...

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Q: Calculate the change in the internal energy of a system if 50 kJ of heat is added to it and if the s...

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Q: Match each weak acid with the pH value at which it would buffer.

A: Weak acids are the acids that do not dissociate completely in aqueous solution. There exists an equi...

Q: Choose the appropriate techniques for degassing the mobile phase of HPLC. I. Ultrasonic II. Boiling ...

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Q: determine the number of atoms of 23.64g of Ce

A: Given, mass of Ce = 23.64 g Molar mass of Ce = 140 g.mol-1

Q: time can be used to ider aphy. Choose a parameter w omatography column. centration of the compound

A: Question 1: We know that, change in the temperature often causes a retention time shift of all the p...

Q: Calculate the number of moles of NaCl contained in 3.5L of a 4.2M solution

A: Given that, Molarity= 4.2 M  Volume= 3.5 L  Then,      

Q: Why is malonic acid a diprotic acid? Please explain using the two ionization equations using chemica...

A: Molecular formula of malonic acid is HOOCCH2COOH

Q: Draw the structure of a compound with the molecular formula CşH;0Oz that produces the following 'H N...

A: Number of signals in 1H NMR  ----> Number of sets of protons in different electronic environment ...

Q: Explain why carbon is such a unique atom. Include a discussion about molecular diversity of carbon-b...

A: Carbon has four electrons in the outer most shell.It has electronic configuration of 1s2 2s2 2p2, it...

Q: A 0.492 M solution of a weak base has a pH of 10.59. What is the base hydrolysis constant, Ko. for t...

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Q: Quntien 1 Using pka valves, ladicate the position of equilibeiam for eencticns aband e.

A: Pka is -log(Ka); Higher Ka,lower Pka. Ka will high when dissociation is easy.

Q: Explain in detail how you would make the solution from the previous question (50.00 mL a 300 ug/dL s...

A: We have to prepare 50.00 mL of a 300 μg/dL solution from a 1500 μg/dL stock solution. So, here the c...

Q: Complete and balance each of the following molecular equations (in aqueous solution). (Use the lowes...

A: Balanced chemical equation can be defined as the equation in which equal number  of  atoms of each e...

Q: 2. Would you predict more Zn or Al to dissolve in Cu? Justify your answer. Atomic Crystal Structure ...

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Q: Part A Given the following reaction at 298 K: 2 H2S(g) + SO2(9) → S8 (s) + 2 H20(g) Calculate A,G un...

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Q: What quantity of heat (in kJ) will be absorbed by a 47.1 g piece of aluminum (specific heat = 0.930 ...

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Q: Based on Valence Bond Theory, what happens when two atomic orbitals overlap? * O A single molecular ...

A: The 4th option is correct that is : The two atomic orbitals share a common region in space. Reason :...

Q: Paraphrasing ewriting Tool Car note Pirate Ship BLACKBOARD [Review Topics] [References) Indicate whe...

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Q: The following AG are for different reactions. Which reactions would be spontaneous if all conditions...

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Q: Carbon dioxide and water react to form methane and oxygen, like this: CO,(9)+2H,O(9) - CH(g)+20;(9) ...

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Q: Learning Task 2 Directions. Draw o if the sample occupies space and o if not. Write your answers on ...

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Q: Consider 3.00 mol3.00 mol of an ideal gas with a constant‑volume molar specific heat of 28.5 J/(mol·...

A: Given that, for a gas The number of moles is n = 3.00 mol, The initial pressure is P1 = 5.910×104 Pa...

Q: Calculate how much 1500 µg/dL stock solution is needed to make 50.00 mL a 300 ug/dL solution. Answer...

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of solute...

Q: What was the concentration of my stock solution if I used 26mL of it to make 116ml of a 1.5 M diluti...

A: Given that, V1= 26 mL , M1=? V2=116 mL , M2= 1.5 M  

Q: The osmotic pressure of a solution containing 1.15 mg of a sugar (342 g/mole) in 11.0 mL of the solu...

A: Given sugar weight is 1.15 mg

Q: Complete the table below by deciding whether a precipitate forms when aqueous formula in the last co...

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Q: Liquid octane (CH3(CH2)6CH3) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide (...

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Q: determine the number of moles of 76.57 atoms of Pu

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Q: 3. Using your knowledge of gas laws, explain the following a. Throwing an aerosol can into a fire ma...

A: Part A: The three basic physical parameters of a gas, its pressure (P), volume (V), and absolute tem...

Q: Explain the difference of an operational principle between flame atomic absorption spectroscopy (FAA...

A: Flame atomic absorption spectroscopy  Flame atomic emission spectroscopy  Amount of light absorbed...

Q: Consider this reaction: 2N,0, (g) → 2N,0, (g)+O, (g) At a certain temperature it obeys this rate law...

A: The rate law for the given reaction is as follows: rate = 3.0 M-1.s-1 N2O52The rate law states that:...

Q: Use this mechanism, to derive an expression for the rate law. Express the rate constant in terms of ...

A: First write the rate law on the basis of slow step and then eliminate all the intermediates to arriv...

Q: Which of the following statements is/are true about the Lewis bond theory? (a) It explains the stabi...

A: Lewis’s structure: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a simpl...

Q: Plastic sulfur is composed of a) S8 molecules c) S2 dimers O b) Sx polymers

A: The plastic sulfur is also called as x-sulfur.

Q: Gaseous butane (CH,(CH,), CH) will react with gaseous oxygen (O,) to produce gaseous carbon dioxide ...

A: Butane reacts with oxygen to form carbon dioxide and water. The equation for the balanced chemical r...

Q: Choose from the following gases which are unsuitable for use as a GC carrier gas? A. Helium B. Oxyge...

A: Gas chromatography (GC) can be defined as the type of chromatography that can be used in analytical ...

Q: Find the r

A: Ptotal = P (CH3CHO) + P (CH4) + P(CO) Also, P(CH4) = P (CO) So, Ptotal = P (CH3CHO) + 2 P (CH4) Now...

Q: For the following reaction K, = 10 at 300K: %3D H2g) + I25) →2HIG) You place 1 atm of H2, 1 atm HI i...

A: If reaction quotient ( Q ) is less than equilibrium constant ( K ) then, reaction will move backward...

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.