Calculate the amount of heat needed to boil 143. g of hexane (C,H14), beginning from a temperature of - 5.3 °C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol.

Q: 9. Draw the structures for two products in (a) + HBr (b)

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Q: Use the data in the table to decide which is more serious: an accident involving radiation exposure…

A: Now 1 rem= 0.01 Sv so 1 Sv= 100 rem Given, in the accident, the person receives 3.70 x 10-4 Sv =…

Q: Consider the following reaction at 298K. Fe2+ (aq) + Cu (s) Fe (s) + Cu2+ (aq) Which of the…

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Q: glass container was containing 1.50 moles of a gas sample at 5.00 atm and 21.7 °C was heated to…

A: Given,  Mole (n1) =  1.50 moles  Pressure (P1) =5.00 atm   Temperature(T1)=273 + 21.7 = 294.7 K…

Q: What mass of solute  (in grams) is present in 303.6 mL of 2.28 M nitric acid solution? Enter only…

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Q: Calculate the mass of 1.40 ✕ 1024 molecules of SO3. Use a molar mass with at least as many…

A: Given: The number of molecules of SO3 is 1.40 X 1024.

Q: 5. Write the products of the following reactions. If there is no reaction write NR. Br, and light…

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Q: The preparations of two aqueous solutions are described in the table below. For each solution, write…

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Q: Substance X is known to exist at 1 atm in the solid, liquid, or vapor phase, depending on the…

A: Initially the sample is below the melting point, therefore, it is in solid state, we calculate how…

Q: A chemistry graduate student is given 450. mL of a 0.70M chlorous acid (HCIO,) solution. Chlorous…

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Q: 2. a) Below are the compounds (A) Codeine, (B) Methadone and (C) morphine. What would be the…

A: HPLC is based on the principle where the sample (analyte) is distributed between a mobile phase…

Q: 3. Consider the following acids Acid Acetic Acid, H CCO-H Trichloroacetic Acid, Cl-CCO,H…

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Q: Fill in the nuclide symbol for the missing particle in the following nuclear equation. -1

A: Consider the given equation is as follows;       ?             →    e-10   +   Pb82210

Q: Fluorescent compound

A: Answer: the reaction product of thiochrome  formation is fluorescent compound.

Q: Q 3: Which of the following alcohols could undergo oxidation test: Ethanol, n-butanol, isopropanol,…

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Q: Consider the hydrolysis of pure water (an electrolytic cell): Anode:    2 H2O(l ) → O2(g ) + 4…

A: Answer: For the reaction to be spontaneous, cell potential must be greater than zero because when…

Q: What volume  (in mL) of 2.85 M potassium sulfate solution would contain 30.8 g of solute? Enter…

A: Given - - > Mass of solute = 30.8 g Molarity of potassium sulfate solution = 2.85 M Molar mass of…

Q: an experiment tells us that the following reaction is first order with respect to H2 and third order…

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Q: There are a number of pharmacokinetic strategies available to change the absorption of a lead…

A: Polarity of a molecule can be decreased either by polar groups or introducing non-polar groups

Q: Enter the atomic symbol, including mass number and atomic number, for iodine-127. Express your…

A: The atomic number of an atom is the number of protons present in the atom. For a neutral atom, the…

Q: 5) When you consider the voltammetric techniques, how is polarography different than the others?…

A: 5. THE SHAPE OF THE POLAROGRAPHY IS OF SIGMOID SHAPE IT IS ELECTROANALLY TECHNIQUE THAT IS APPLIED…

Q: Consider the following half-reactions and E• values: Ag+(aq)+e-→Ag(s) E• = 0.80V…

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Q: 3. Which wavelength is the most energetic? Which is the least energetic? 4. What do you notice about…

A: We know that, E=h ×cλ Where, E= energy of the radiation, h= Planck's constant, c= speed of light, λ=…

Q: The reaction mechanism involves an intermediate A: AこA+A (far) A+B P k (slow) Deduce the rate law…

A: The rate law of a reaction gives the relation between rate constant and concentration term which is…

Q: NI = 12037 N2 d2= 9.24x1o 6 year! iニ 2.83 X 106 yeari! You have to determòne t value from the…

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Q: The lattice enthalpy of RbBrO3 is measured to be 610 kJ/mol. Calculate the thermochemical radius of…

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Q: When the Cu2+ concentration is 1.47 M, the observed cell potential at 298K for an electrochemical…

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Q: 4. Name the following compounds: (a) d (6) (c) H- (d)

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Q: Consider the spectral data for 3-nitrophthalic acid. a. In the functional group region of the IR…

A: 3-nitro pthalic Acid has two -COOH group,one nitro group and a benzene ring.

Q: Please answer all, draw major products

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Q: Consider a radio active material with a half-life time of 30 years following first order reaction.…

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Q: A sample of 0.262 mol of a metal M reacts completely with excess fluorine to form 20.5 g of MF2.…

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Q: For the cell shown, the measured cell potential, Ecell, is -0.3521 V at 25 °C. Pt(s) | H,(g, 0.785…

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Q: In your own words, why the storage bottle should be a dark or AMBER-colored reagent bottle in the…

A: Potassium Permanganate is a photosensitive compound. The solution of potassium permanganate (KMnO4)…

Q: draw and label block diagram of UV - Vis and IR

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Q: When the Ag+ concentration is 5.60×10-4 M, the observed cell potential at 298K for an…

A: Given-> Concentration of Ag+ = 5.60 × 10-4 M Ecell = 2.972 V

Q: Please answer it ASAP and CORRECTLY for an upvote. Thank you. Benzoic acid is 9 times more soluble…

A: 13. Benzoic acid 9 times more soluble in chloroform than in water y = 9x If 1mole of benzoic acid…

Q: How many joules are required to heat 200 grams of water from 25°C to 125°C?

A: The mass of the water sample is = 200 g The initial temperature of the water is = 25oC The final…

Q: Draw the nucleophilic attack of the thiamine ylide on a molecule of benzaldehyde. Use proper…

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Q: how much pressure in kPa does 4.0 moles of nitrogen gas at 30°C Exer on a container that holds 55.0…

A: Given, moles of Nitrogen gas (n) = 4.0 mol Temperature (T) = 30°C = (30 + 273.15) K = 303.15 K…

Q: CHi2Og+ 6 O,→ 6 CO, + 6 H,0

A: Number of sugar molecules = (Number of O2 molecule)/6 = Number of CO2 molecules/6 = Number H2O…

Q: Substance X is known to exist at 1 atm in the solid, liquid, or vapor phase, depending on the…

A: Initially the sample is below the melting point, therefore, it is in solid state, we calculate how…

Q: What quantity of heat (in kJ) will be released if 1.20 mol of SrO is mixed with 0.567 mol of CO, in…

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Q: Consider the following reaction: 2CH4(g) C2H2(g) + 3H2(g) Kc= .154 at 2000K If you start with…

A: Given data : Balance chemical equation : 2CH4(g) <---> C2H2(g) + 3H2(g) Kc = 0.154 at  2000K…

Q: A sample of gas at 52°C and 1.75 atm occupie a volume of 2.38 L. What volume would thi gas occupy at…

A: Given,  Temperature, T1 = 52 oC = 325 K Pressure, P1 = 1.75 atm Volume, V1 = 2.38 L Temperature, T2…

Q: The preparations of two aqueous solutions are described in the table below. For each solution, write…

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Q: What mass of ammonia gas (NH3) contains 2.81 ✕ 1024 hydrogen atoms?

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

A: The Diels–Alder reaction is the reaction between a conjugated diene and  dienophile to form…

Q: 22 D. Isotopes Nuclear Symbol Protons Neutrons Electrons Ca 20 20 20 24 20 "Ca 20 38

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Q: A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: 2vo, (aq) +…

A: Given-> Concentration of VO2+ = 3.63 M Concentration of H+ = 1.38 M Concentration of VO2+ = 0.607…