エZ 1ㄩ

Q: A 420.0ml volume of O2 gas is collected over water at 24*C and 750.0 Torr. The gas weighs 0.534g.  ...

A: Given that : The volume of O2 gas = 420.0 mL Temperature = 24°C The pressure of O2 gas = 750.0 torr ...

Q: 2. Grignard reagents are sources of "carbanion", a potent base and nucleophile. Write a reaction tha...

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Q: How many g of Aluminum are needed to react completely with 16.41 gram of Mn3O4, according to the che...

A: The molar mass of Mn = 54.938g/mol The molar mass of O = 15.999 g/mol The molar mass of Al = 26.981 ...

Q: What volume of 0.2456 M lead(II) nitrate solution would be required to reach the endpoint when react...

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Q: Describe the fractional distillation curve/graph

A: To describe the fractional distillation curve / graph.

Q: OH NH2 X Y .8 .6 .4 .2 .0 з000 2000 1000 Waven umber (cm-1) 00

A: The given ir spectrum is for benzophenone(Z) because the peak at 1701 cm^-1 is only possible for the...

Q: What could be the observe rotation of a 0.86 M solution composed of a sample which has a MW of 297.1...

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Q: Which are correct statements about exothermic and endothermic reactions? I. The bonds in the product...

A: Exothermic reaction is chemical reaction where energy is released during the reaction. Endothermic r...

Q: Consider a stereoisomer of 2,3,4-trihydroxybutanoic acid given below, HOH HO. OH HH OH 1. How many c...

A: Stereoisomers  differ in spatial arrangement of atoms i.e. orientation but not connectivity. Optical...

Q: Acetic acid (CH3COOH, abbrev. HA) is a very common weak acid with pKA = 4.75 (at 25oC and low ionic ...

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Q: For a given substance, which of the following has the same absolute value as its latent heat of vapo...

A: The latent heat of condensation is numerically exactly equal to the heat of vaporization but has the...

Q: Vol 6 No 6 S5 what is the issue number ?

A: Issues number is given below. 

Q: QUESTION 6 What could be the observe rotation of a 0.84 M solution composed of a sample which has a ...

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Q: A 109-L vessel containing Ar, 24.1 moles of He, and 26.7 moles of Ne has a total pressure of 20.5 at...

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Q: 1. Calculate a reflective loss when a 589 mm beam of radiation light passes through a piece of mediu...

A: 1. Solution -

Q: How many mL of 3% sodium chloride will be needed to complete the following compound? Sodium Bicarbo...

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Q: If 2.00 mL of 0.200 M NaOH are added to 1.00 L of 0.100 M CaCl2, will a precipitate form? Ksp Ca(OH)...

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Q: Predict the solubility product constant of the following: 1. Ag2CO3(s) ↔ 2Ag+(aq) + CO3-2(aq) 2. M...

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Q: A. O 2C2H6(g) + 702(g) 4CO2(g) + 6H2O(g) B. O C2H6(g) + 3.5014) → 2CO2(g) + 3H2O(g) C. O 2C2H6(g) + ...

A: Ethane having formula C2H6   

Q: A) It has a covalent double bond.

A: Iodine is 17th(VIIA)group element• it has 7 valence shell electrons• So required single electron to ...

Q: follow, calculate the standard enthalpy change for this reaction.

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Q: calories

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Q: Hemiacetals are formed by nucleophilic addition of a hydroxyl group to a carbonyl group. In the same...

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Q: True or False? Because a state function depends on the current equilibrium of the system, a set of r...

A: True.

Q: What is the relationship of the following two structures? HO HO HO он HO OH O Constitutional Isomers...

A: What is the relation between two structure ?

Q: b. Draw a Newman projection of the given compound H viewed from C-2 to C-3 orientated according to t...

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Q: Which has the sign for the enthalpy change different to the other three?

A: Enthalpy change is defined as the heat that passes into or out of the system during a chemical react...

Q: Assign the oxidation numbers to the elements in the following: Cr,S3. The oxidation number should be...

A: 1- We know that, Cr is chromium metal it's tendency to release electrons so that Cr metal have posit...

Q: 3. The radius of a hydrogen atom is 0.529 A. (1010 A = 1 m) Convert the radius of a hydrogen atom: (...

A: (3) Consider the given information is as follows; Radius of hydrogen atom = 0.529 A° 0.529 A° = ? m ...

Q: In a titration of 68.0 mL of a 0.750 M solution of a triprotic acid H₃C₆H₅O₇ (citric acid) with 0.50...

A: Given that -  Volume of triprotic acid, citric acid , H₃C₆H₅O₇  = 68.0 mL  Molarity of citric acid, ...

Q: Draw and name structures of all products expected from monobromination of the following and indicate...

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Q: a) Using s, p, d, f notations, write the electronic configuration of Chromium (III) ion Cr*3 b) Ment...

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Q: QUESTION 4 a) Identify all four possible isomers for C4HSBR2 b) Identify two structural isomers of C...

A: a.

Q: convert the following newman projection of compound a to a 3 dimensional line strcutre in given conf...

A: First draw the structure into sawhorse projection .

Q: When the use of 2D Thin layer Chromatography is better than normal TLC? Please shortly answer at yo...

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Q: 7. Predict the mono-bromination products formed in the following radical bromination reaction. 4 poi...

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Q: Suppose object A has triple the specific heat and double the mass of object B. If the same amount of...

A: Given: Object A has triple the specific heat and double the mass of object B. The amount of heat app...

Q: Q77. Which molecule would you predict to be the most hydrophobic? Briefly explain. Но OH OH ОН OH H,...

A: Hydrophilic : tendency to dissolve in water

Q: 1) NaH 2) CH3CH2CH2B. РСС, THF NazCr2O7

A:

Q: Consider the titration of 60.0 mt of 0.0400 M CHN (a weak base K170e-09) with 0.100 M HBr. Calculate...

A: When the volume of HBr solution is added, is lower than volume required to achieve equivalence point...

Q: NaF .CI i) Nal ii) .CI

A: In SN2 reaction, reaction rate depends on the 1) substrate 2) nucleophile  

Q: Vhat is the optical rotation based on the result below: (no need to put unit) 40 30 20 10 50

A: Optical rotation is called polarization rotation. Rotation of orientation of plane polarized light. ...

Q: *NH H*

A: Reactants are secondary amine and ketone, medium of reaction is acidic medium.     

Q: 5) Determine the molecular shape of PH3.

A: According to VSEPR Theory, atomic orbitals are combined together to form hybridized orbitals and und...

Q: A 49.7-mL sample of benzene at 35.7°C was cooled to its melting point, 5.5 °C, and then frozen at 5....

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Q: The osmotic pressure of a protein solution was measured at 25°C. The following data were obtained. c...

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Q: QUESTION 24 What volume (in L) would 7.1g of nitrogen gas (28 g/mol) )occupy at 38 °C and a pressure...

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Q: Calculate the molar heat capacity of iron in J-mol 1°C1. Its specific heat is 0.4498 J-g1.°C-1. i J-...

A: Molar heat capacity = Specific heat capacity × molar mass   Molar mass of iron = 55.845 g/mol  There...

Q: If you are using a secondary source, Vallejo, 2017, which presents the information in the paper belo...

A: The citation is very important when we use the published articles and work or second sources knowled...

Q: [References] When a 12.7 g sample of NaOH(s) dissolves in 349.0 mL water in a coffee cup calorimeter...

A:

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.