QUESTION 9 How many joules must be absorbed by 14.6g of manganese originally at 22.6°C to raise its temperature to 140.8°C? QUESTION 10 When the reaction N2 (g) + 3 H2 (g) → 2 NH3 (g) occurs at constant pressure in a system whose volume can change. no work will be exchanged between the system and the surroundings It is not possible to predict whether or not work will be exchanged between the system and surroundings work will be performed by the system on the surroundings work will be performed by the surroundings on the system

Q: Select all the compounds that exhibits a proton spectrum with only one signal.   Question 13 option...

A: The compounds that exhibit only one signal in proton NMR spectrum is given below

Q: the equilibrium concentration

A: Kp=Kc(RT)∆n

Q: For the hydrogenation reaction of (R,Z)-3-methylpent-3-en-2-ol shown below, which of the following s...

A: Option D is correct answer. a racemic mixture of enantiomers having stereo center at C2 and C3

Q: For the diprotic weak acid H2A, Kal = 3.1 x 10-6 and Ka2 = 5.6 x 10-9. What is the pH of a 0.0650 M ...

A: We have to predict the pH as well as equilibrium concentration.  

Q: 4.) For the following dienes A-G, please circle which organic molecules would not function as dienes...

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Q: For the successful synthesis of triphenylmethanol , 0.05 moles of methyl benzoate would require mole...

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Q: CH4(g) + CCI4(g) 2CH2C12(g) When she introduced 4.30x10-2 moles of CH4(g) and 7.96x10-2 moles of CCI...

A:

Q: Consider the following reaction: cocCl2(g) co(g) + Cl2(g) If 9.25x10-3 moles of COCI,(g), 0.607 mole...

A:

Q: A welder’s acetylene tank has a volume of 75.0 L. It is stored at a temperature of 23.24 °C and has ...

A:

Q: 19. The rate constant for the radioactive decay of 14C is 1.21 × 10¬4 year¯. The products of the dec...

A: Given :  Rate = k[614C]  Carbon - 14 content = 6.5 x 10-9 M  Rate constant = 1.21 x 10-4 year-1     

Q: The reaction A + B >C ill always be spontaneous, if AH° is and AS is a) +, + b) -,- c) -,+ d) +, - e...

A: Given the reaction is , A+B--------->C We have to find of delta H° and deltaS° when reaction will...

Q: What temperature (in °C) did an ideal gas shift to if it was initially at -20.50 °C at 4.620 atm and...

A: We need to use ideal gas law to solve this question. 

Q: 8. Predict the sign of the entropy change (positive or negative) for each of the following: a) 2 NaH...

A:

Q: A technical machinist is asked to build a cubical steel tank that will hold 510 L of water. Calculat...

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Q: 23. Nitrosyl chloride, NOCI, decomposes to NO and Cl2. 2NOCI(g) – 2NO(g) + Cl2(g) Determine the rate...

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Q: An excess amount of ZN (s) is added to 50 ml of 0.800 M HCl. What mass in grams?

A:

Q: Based on what you have learned so far in the Labster experiment, if a set of equivalent protons has ...

A: The number to which a signal splitts is related to neighbouring or adjacent number of hydrogen by N+...

Q: what is the oxidation number of S in H2SO4 ____ and S in H2SO4 b.) what is the element that is oxidi...

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Q: kJ per hour ?

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Q: HIN 2. Classify the following compounds as primary, secondary and ter CH2-CH3 CH3 a CH3-CH-NH CH3-C-...

A:

Q: 1-6. Give the IUPAC name for each of the following compounds 1. 2. 3. Br 4. Br

A:

Q: A supersaturated solution of CH3COO-Na+ will crystallize spontaneously. Predict the signs of AH,AS,A...

A:

Q: A light bulb consumes energy at a rate of 80.0 joules per second . How long in seconds will it take ...

A: Given ; rate = 80 j/s

Q: Calculate the pH of a buffer solution that contains 0.25 M benzoic acid (C,H5CO2H) and 0.15M sodium ...

A:

Q: 23. Nitrosyl chloride, NOCI, decomposes to NO and Cl2. 2NOCI(8) – 2NO(8) + Cl2(8) Determine the rate...

A:

Q: volume

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Q: A piece of solid bismuth weighing 28.3 g at a temperature of 257 °C is placed in 283 g of liquid bis...

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Q: Calculate the degree of unsaturation of the compound having molecular formula C2Cl6 (Write the answe...

A:

Q: e pH of

A:

Q: What are the solvents used in the fabrication of organic electronic devices today? In your words, wh...

A: The solution of the question is given below:

Q: HO H2SO4

A: In elimination reaction a species leave the substrate and double or triple bond is formed.

Q: Balance: HC2H3O2(aq)+ Al(OH)3(s)

A: In balanced reaction number of each atom on reactant side is equal to number of each atom on product...

Q: 22. Indicate which of the following molecules exhibits the weakest dispersion forces. a. CH3CH3 (mol...

A: 22.   The inter molecular force present between hydrocarbons are weak dispersion forces.    Greater ...

Q: 26. a. Calculate the the molecular weight of Na2SO4 Atom Number of atoms Atomic Mass Total mass Mola...

A:

Q: 35. Y =[co, – a//3) ¢,] represents normalised a molecular orbital constructed from two different ato...

A:

Q: which of the following compounds would be the most basic? A. p-methoxyaniline B. p-nitroaniline C. p...

A: Basicity means donate the lone pair of electron  Basicity depends on 1) + I and + R  

Q: Which of the following statements is incorrect regarding IR spectroscopy?   Question 24 options:  ...

A:

Q: QUESTION 7 If the temperature of a gas is increased and at the same time the volume of the gas is de...

A: Option C is correct answer. Must stay the same.    

Q: o: CH3OH2* H H. Select to Add CH3OH Select to Add Arrows Arrows CH3OH2* CH3OH CH3OH2* Select to Add ...

A: Detail arrow pushing mechanism is shown below

Q: What is predominant reaction type between 2- bromopentane with sodium ethoxide? O SN1 SN2 O E2 E1

A: 2-bromo pentane with sodium ethoxide  Reaction predominant type is ...  

Q: CH3 H3C `CH2 CH2

A: Concept: The number of NMR signals represents the number of different types of protons in a molecule...

Q: Write the chemical equation

A:

Q: A 0.6475-g sample of solid magnesium is burned in a constant-volume bomb calorimeter that has capaci...

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Q: Explain how you determine the 4 quantum numbers for the element Sb

A: A question based on structure of atom that is to be accomplished.

Q: Need help with this question. Thank you :)

A: Acetic acid has resonance in COOH group.  So due to resonance the bond order is 1.5

Q: Br OH IZ

A:

Q: Matti is given two bottles of copper(II) sulfate solutions in her senior high chemistry lab. She is ...

A: A saturated solution is the one in which there is maximum limit if solute has been dissolved in the ...

Q: In the synthesis of aspirin experiment, what information will you acquire when performing a melting ...

A: Melting point is the temperature at which a solid compound converts into liquid compound. For differ...

Q: n acid with K, n acid with K, = 3.2 × 10-7 n acid with K, = 2.5 × 10"* n acid with K, = 1.7 × 10-10 ...

A: As we know, buffer is the mixture of weak Acid/base with its conjugate base/acid. And pH range of ac...

Q: Derive an expression showing how entropy can be related to thermodynamic probability.

A: