Which of the statements is TRUE about these balloons at STP? 01 II and III OI and IV O II

Q: Exercise 39. Draw the products formed in each reaction. 1. NH3 CH2CH2CI excess 2. 1) КОН NH 2)…

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Q: 6. Calculate AH for the reaction 4NH3 (g) + 502 → 4NO (g) + 6H,0 from the following (g) (g), data.…

A: here we are required to find the enthalpy of the reaction  oxidation of ammonia using Hess's Law.

Q: Use the observation in the first column to answer the question in the second column. observation…

A: Vapor pressure is the pressure exerted by the vapor above the liquid on that liquid. Boling point is…

Q: determine whether each reaction is spontaneous under standard conditions. If a reaction is not…

A: Spontaneity of the Reaction depends on Gibbs free energy change value. If the value of ∆G is…

Q: 1. The half-life. of a radioactive isotope a) displays 1st order kinetics b) is independent of the…

A: Characteristics of Radioactive materials

Q: 1.) Which of the following is the correct equilibrium constant for the following reaction? KCIO4 (s)…

A: Question 1. Equilibrium constant is the ratio of( product of) concentration of products  to the…

Q: What the weight of drug must be added to 50 g of 2% "ointment" to produce a 3% ointment?

A: Mass of ointment= 50 g  Initial w/w %= 2% Desired w/w%= 3% The mass of drug required has to be…

Q: In ATP synthase, which subunit helps to prevent a and 3 sub units from rotating as protons move…

A: The F0 region of ATP synthase consists of three main subunits a, b, and c. Six c subunits make up…

Q: C. Propose a stepwise synthesis for the following substance using the indicated starting materials.…

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Q: Compound ΔHf, (kJ/mol) Al2O3(s) − 1675.7 CO(g) −110.5 Al(s) 0 CO2(g) −393.5 Use standard…

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Q: lonic bonds are the interactions between a cation and an anion. Metals tend to form cations giving a…

A: Metal donate the electron and nonmetal  accept the electron. Tables are given here.

Q: Which of the pairs is the stronger acid?  Why is that?            a.  carbonic acid (H2CO3)   or…

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Q: 2. One method for the destruction of ozone in the upper atmosphere is: 03 + NO NO₂ + O₂ (slow) NO +…

A: This question is related to chemical kinetics which is branch of chemistry that deals with rate of…

Q: Classify the pericyclic reaction and indicate how many bonds broken/formed. + Cycloaddition

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Q: What is the difference between endo and exo thermic reactions

A: between endo and exo thermic reactions is given below

Q: Consider the following hypothetical atoms: 130 64 1X has 62 electrons and 1Y has 78 electrons.…

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Q: 2. In the Experiment3, "Specific Heat of Aluminum", one student set up the apparatus as a. Find out…

A: In this experiment we need a Glassware stand with a test tube grip arm and the arm is attached to…

Q: 3. 1. NaOEt, E1OH 2. Hзо* 4. NaCN HCI

A: Detail mechanistic pathway is given below to find out the product

Q: How many formula units of sodium chloride are present in a 3.500 mol sample

A: We have to predict the number of formula units.

Q: Which of the following is a strong acid? O acetic acid Ohydrochloric acid hydrofluoric acid…

A: The strong acid among them is given below

Q: d, what is the pH?

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Q: Arrange Au(s), Al(s), and C(s) in order of increasing entropy. Assume the three solids are at the…

A: The correct order of entropy is given below

Q: rate law ar

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Q: Which of the following aqueous solutions would form a precipitate after adding 5.0 mL of 6.0 M HCI?…

A: To check which solutions form precipitate we would write the reaction of each Compound with HCl and…

Q: @) Tawo inomeric compounds with molecular formula GHgO display the folloraring peaks at the…

A: The molecular formula of the isomeric organic compounds A and B are C7H8O.

Q: 17.) Calculate the change in the Gibbs energy if one mole of a perfect gas is allowed to expand…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: IR isoamyl alcohol 100 95 90 85 80 75 70 65 60 55 50 45 40 4000 3500 3000 2500 2000 1500 1000 500…

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Q: Exercise 38. What amide(s) can be used to prepare each amine by reduction? a. b. С. (CH3CH2)2NH NH2

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Q: How would you synthesize the following compound starting with optically pure (R) or (S)-2-butanol? H…

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Q: 6. Write "most" under the member of each trio which is most stable. Write "least" under the member…

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Q: Enthalpy change for one mole, (AH) -58.3 kj mol Density 1 M NaCl, (4) 1.037 g mL Specific heat of 1…

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Q: 91 The rotational spectrum of Br Br has lines 0.154 cm apart. Each line corresponds to a transition…

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Q: Chemistry 1. For each of the reactions below, give the structure(s) of the product(s), and be sure…

A: Here we have to write the major product formed in the following reactions.

Q: Circle the 4 weak Brønsted-Lowry bases NaNO, CsH;N КОн LINO, NaH HBr HNO2 HCIO2 NazCO3 KF

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Q: .) Refer to the following equation: 3Cu(s) + 8HNO3(aq) → 3Cu(NO;);(s) + 2NO(g) + 4H,0(1)

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Q: EXPLAIN HOW POLYCARBONATE WILL BE RECYCLED, MIXED, AND MOLDED AGAIN TO CREATE THE DESIRED SHAPE

A: When polycarbonate is heated to its melting point, it melts to a liquid form which can be shaped…

Q: Coumarins are prepared in the lab by treating resorcinol with ethyl acetoacetate according to the…

A: Given data,Percent yield=55.0%Mass of 4-methylumbelliferone (experimental yield)=2.33 gMolar mass of…

Q: OH

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Q: В. Propose a mechanism to account for the following reaction. Hint: Start by removing the most…

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Q: . Differentiate Benedict's test from Barfoed's test b. Can the Seliwanoff's test be used to…

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Q: When does phenolphthalein turn pink?      when the concentration of H+ ions is very low in the…

A: Phenolphthalein has pink color in ionized form and colorless in unionized from. HPh.    < --->…

Q: 4. Carbon activated by steam generally has a fine pore structure, ideal for adsorbing both liquid…

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Q: 2. Now draw an Energy diagram for the following atoms making sure to label the shell and subshell.…

A: We have to make energy diagrams for silicon and arsenic.

Q: Write the name of the following compound. CI CI

A: In this question we have to tell the name of the compound.

Q: A solution is made using 29.9 percent by mass CH₂Cl₂ in CHCI,. At 30 °C, the vapor pressure of pure…

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Q: Propose a mechanism to account for the following reaction. Hint: Start by removing the most acidic…

A: The reaction is based on the phosphorus ylide.  Phosphorus ylide converts carbonyl into alkene.

Q: B C EtO. H 2. H3O* & Heat Ninhydrin NH3 COO NH3 COO Aq. HCI & Heat NH3 + CO₂ + purple compound ?+ ?…

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Q: Using the trendline from your plot, calculate the absorption of a solution with a concentration of…

A: Equation of the trendline is y = 16.88x - 0.0054 where y is absorbance and x is concentration.

Q: Draw the most stable chair conformation of (cis) 1,3-dipropylcyclohexane

A: Here we are required to draw the most stable chair conformation of cis 1,3dipropylcyclohexane

Q: Therefore, the rate of reaction is 0.005 mol/s 1. Iron reacts with oxygen as shown in the balanced…

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.