enthalpy change

Q: 7. What is the name of the amino that has an ɛ amino group on its side chain? What is the one letter...

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

Q: ONLY use the ICE table to solve! A student  prepares a 1.9 mM  aquous solution of 4-chlorobutanoi a...

A: Given,  [C3H6ClCOOH] in mM = 1.9 mM  Calculate the fraction of 4-chlorobutanoic acid that is in the ...

Q: Be sure to answer all parts. The reaction between aluminum and iron(III) oxide can generate temperat...

A: Given-> Weight of Al = 123 gm Weight of Fe2O3 = 601 gm    

Q: Provide a chemical formula (AmBn) for the product of the reaction below SH [0]

A: -SH functional group represent a thiol which undergo oxidation to form disulfide.

Q: 1. How many molecules of oxygen are in 50.0 g of oxygen?

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Q: Question 2 Assuming the dopant atom occupies the Ga-site. The doping of GaAs with Si gives (a) N-typ...

A: Semiconductors can be defined as the materials whose conductivity lie between conductors and insulat...

Q: The pH of an aqueous solution of 0.470 M hydrocyanic acid is

A: Given :- concentration of hydrocyanic acid = 0.470M  To be calculated :-  pH of solution  pH = -log[...

Q: How    do    you    prepare    25    mL    of    0.4%    (w/v)    cesium    chloride?

A: Dear student since you have asked multiple questions but according to guidelines we will solve 1st q...

Q: Calculate the standard entropy change for the following reaction at 25°C. S(rhombic) + O2(g) → SO;(g...

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Q: 2- Analytical chemistry : is a measurement science consists of a set powerful ideas and methods that...

A:       Analytical chemistry is a branch of chemistry, used in the determination of chemical compositi...

Q: Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous sodi...

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Q: How many moles of cobalt (Co) atoms are there in 2.00 x 10 (2.00 billion) Co atoms? x 10. mol Enter ...

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Q: Liquid hexane (CH3(CH2),CH3) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (...

A: Given, Liquid hexane (C6H14) react with gaseous oxygen (O2) to produce gaseous carbon dioxide (CO2) ...

Q: Pentaborane B5H9(s) burns vigorously in O2 to give B203(s) and H20(1). Calculate AHpxn for the combu...

A:   Heat of reaction: at particular temperature  the amount of heat released or absorbed during a che...

Q: Determine the empirical formula of a compound having the following percent composition by mass: K: 2...

A: Given value, %K=24.74% , MOLAR MASS= 39 g mol-1 %Mn=34.76 %, molar mass=54.938 g mol-1 % O = 40.50 %...

Q: Please type this, dont write it on a paper.

A: Here we have to give reasons for endothermic or exothermic to be more spontaneous. Which have more t...

Q: Calculate the average atomic mass of copper. The percentages denote the relative abundances. Isotope...

A: Calculation of average atomic mass of cu:

Q: 15) How many moles of 0 atoms are in 2.5.19 of CaSO,?

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Q: boron trifluoride: partial pressure: Your answer is incorrect. • Total pressure in tank: Your answer...

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Q: Tobramycin sulfate is a 7-ion electrolyte and has a molecular weight of 1425.45 g/mol. Assuming that...

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Q: 14. One 1iter of a solution contains 0.010 mole of AgNO and 2.0 mole of NHOH. (a) 0.010 mole of NaCl...

A: Solution -

Q: The decomposition of XY is second order in XY and has a rate constant of 7.00×10−3 L mol−1 s−1 at a ...

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Q: H. Draw a plot showing reaction velocity as a function of substrate concentration for Ks = , Vmax = ...

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Q: An analytical chemist is titrating 225.7 mL of a 1.100M solution of cyanic acid (HCNO) with a 1.100M...

A: Since you have posted multiple questions we will solve the only first question for you according to ...

Q: Be sure to answer all parts. The reaction between aluminum and iron(III) oxide can generate temperat...

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Q: Redraw the compound below and identify all the chiral center/s.

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Q: Determine the viscosity of diethyl ether at 77 degrees Celsius.  (Pa·s)

A: 1. From Dortmund data bank of diethyl ether, The viscosity of diethyl ether at 77°c = 350.15k is 0.1...

Q: Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic i...

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Q: Write an informative introduction about Matter.and Mixtures.

A: A substance can be defined as a material that has physical properties.It is basically a form of matt...

Q: Enter your answer in the provided box. The reaction between nitric oxide (NO) and oxygen to form nit...

A: 2NO(g) +O2 (g)  -----> 2NO2(g)   The question is based on molee concept  2 moles of NO react with...

Q: 2. How many signals in the 13C NMR spectrum would you expect for each of the two isomers of azulene

A: Azulene is an organic compound and an isomer of naphthalene. These both are aromatic compound. 

Q: Solution A has pH of 3.20, solution B pH of 12.50, solution C a pH of 7.00, and solution D a pH of 4...

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Q: Calculate the mass of excess reagent remaining at the end of the reaction in which 90.0 g of SO2 are...

A: To find the limiting/excess reagent,  • Convert the mass of reactants ( SO2 and O2 ) to moles.  •  D...

Q: H.

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Q: Enter your answer in the provided box. 12 The atomic masses of the two stable isotopes of carbon, 13...

A: Given,  12C6 isotope has 98.90 %  molar mass = 12 amu And 13C6 isotope has 1.100 %  Molar mass = 13....

Q: Precipitation gravimetry : In precipitation gravimetry , the analyte is converted to a sparingly sol...

A: The statement is True In the precipitation gravimetry the analyte is transformed into the moderately...

Q: What is the ph of 0.6M acetic acid?

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Q: 1- Chemistry is the science that 2- Type of chemistry that identification of substances present and ...

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Q: A chemistry graduate student is given 450. mL of a 0.60M propanoic acid (HC,H,CO,) solution. Propano...

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Q: 5. Consider the phase diagram of Cu-Be shown below. At 1000°C with an overall alloy composition of 1...

A: Given phase diagram:

Q: Select the correct product of the following reaction series. 1. NaOEt, EtOH 2. Br ? EtO OEt NHAC 3. ...

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Q: Which of the following statements is TRUE about elimination tests for anions? of Select one: SCN' in...

A: Here we have to write about correct statement for elimination tests for anions. Here no option is co...

Q: 6. Clearly and completely describe a simple, ONE step (a single reagent added) test that would allow...

A: a. NaOH is the single distinguishing reagent for Bi(OH)3 and Al(OH)3. Al(OH)3 reacts with NaOH to fo...

Q: 1.3 A gas is made up of the following components; 25 g of methane, 3 g of ethane and 1.5 g f propane...

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for you...

Q: Which of the following occurs when products are added to a chemical reaction in solution or the gas ...

A: -> when reactant or product added then it follow Le-chatelier principle.    

Q: A bicyclist is stopped at the entrance to a valley, as sketched below: E Where would the bicyclist h...

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Q: Practice Exercises 6.1 1. a. b. H,CO,(aq) = H,O(/) + CO,(g) H,O(g) + C6) = H,(g) + CO(8) 0,(g) + 4NO...

A: At equilibrium, the rate of the forward and the reverse reaction is the same and the concentration o...

Q: Enter your answer in the provided box. The reaction between nitric oxide (NO) and oxygen to form nit...

A: The given reaction is  2NO (g) + O2 (g) - - > 2NO2 Number of moles of NO2 produced = mass/molar m...

Q: Draw the structure of the product/s in each of the following rea Provide your final answers in the s...

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Q: 4- Titrimetric methods : are quantitative methods that are based on determining the mass of a pure c...

A: This is basically statement of gravimetric analysis