UV - spectra of two Bomers of cinmamic auld g dentify the is amer 2016|| The absorb at 272 nm & 268 mm. noith Justification.

Q: ne specific heat o

A:

Q: thermometer A 58.2 g sample of polystyrene is put into a calorimeter (see sketch at right) that cont...

A:

Q: 5分 From the following sets, what starting materials and reagent(s) are best used to make the followi...

A:

Q: 2. Calculate the solvation free energy AG of Mg? using the Born theory. Given that the ionic radius ...

A: To Find out Solvation enthalpy,we can assume the solvent is with uniform dielectric medium.It is pol...

Q: Calculate the number of nitrogen atoms in a 120.0 g sample of dinitrogen tetroxide (N,04). Be sure y...

A: Mass of nitrogen dioxide (N2O4) = 120.0 g  Number of nitrogen atoms = ? 

Q: Draw the condensed formula or skeletal structural formula for the following compounds: (a) 2-methyl...

A: (a) 2-methylpentanoic acid (b) Ethyl butanoate

Q: ALKENE/ ALKYNE REAGENTS(S) AND MAJOR PRODUCTS(S) CONDITIONS Br2 ? da А. H Br Br В. Br, Br Or if you ...

A:

Q: Name the highlighted chemical group in each molecule. Lewis structure name of highlighted group :N=C...

A:

Q: Calculate AH° and AE for the following reactions at 25 °C. Use standard enthalpies of formation from...

A:

Q: MOLAR MASS

A:

Q: Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium b...

A: Percentage yield is the ratio of actual yield to theoretical yield multiplied by 100.   To find the ...

Q: Calculate AH and AE for the following reactions at 25 °C. Use standard enthalpies of formation from ...

A: ∆Horxn = ∆Hoproduct - ∆Horeactants    ∆E = ∆H - ∆ngRT         

Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gas...

A: Given data :- Amount of energy absorbed = 393 KJ Work done by the piston on the system = 194 KJ  

Q: ppm mean that 100 100 kg per liter. 100 g per liter. 100 mg per liter. O

A: ppm refers to parts per million concentration.

Q: Aqueous hydrochloric acid (HCI) reacts with solid sodium hydroxide (NAOH) to produce aqueous sodium ...

A:

Q: Procedure of separating salt from sand

A: Salt and sand both are present in the solid form at room temperature. If both of the compounds are m...

Q: A 1.00 L solution contains 3.50×10-4 M Cu(NO3)2 and 2.500×10-3 M ethylenediamine (en). The Kf for Cu...

A: Given data : 

Q: itrogen (N, gas and hydrogen (H, gas react to form ammonia (NH, gas. Suppose you have 5.0 mol of N, ...

A: N2(g) + 3H2(g) ----> 2NH3(g) Number of moles of N2 = 5 moles Number of moles of H2 = 2 moles  

Q: A mixture of nitrogen and hydrogen gas is compressed from a volume of 85.0 L to a volume of 83.0 L, ...

A: Initial Volume, V1   = 85.0 L Final volume, V2 = 83.0 L Pressure = 73 atm

Q: .required components in an electrochemical corrosion cell . Two. Four. O Three. O

A:

Q: For a process, 153 J of heat was released by the system and 267 Jof work was done on the system. Cal...

A: Given,  Work done on the system = 267 J  Heat realised by the system = 153 J   

Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gas...

A:

Q: major product

A:

Q: OEt HO H. carry our ietrosynthesis of T. Analysis Must be aretrosyntheticioute snowing cne cusconnec...

A:

Q: Use the Henderson-Hasselbach equation to perform the following calculations. The K, of acetic acid i...

A: Molar mass of sodium acetate trihydrate = 136.08 g/mol

Q: What is the largest difference between the Arrhenius and Bronted Lowry acid/base definitions? explai...

A: Largest difference between Arrhenius & Bronsted lowry acid and base concept = ?   

Q: 1. Given that the formation enthalpies and entropies of the selected ionic compound, cation, and ani...

A:

Q: When connect between cupper and iron strips the state of corrosion is very rusty. O slightly rusty. ...

A: Among iron and copper, iron has less standard reduction potential than copper, due to which copper i...

Q: Nitrogen (N,) gas and hydrogen (H,) gas react to form ammonia (NH,) gas. Suppose you have 5.0 mol of...

A:

Q: Chemical reaction in primary batteries is. * O Reversed. O Not reversed.

A: Primary battery is designed to be used once and then diacarded. 

Q: Try Again Your answer is incorrect. Solid aluminum (Al)and chlorine (Cl,) gas react to form solid al...

A:

Q: The reaction 8 CO2(g) + 10 H20(g) 2 C4H10(g) + 13 O2(3) has AG° = -5407 kJ. Determine the value of A...

A:

Q: Solve the following problems and show complete solutions. The final answers must be reported in prop...

A:

Q: A 6.50 g of solid compound X was dissolved in 100 g water. The freezing point of the solution was fo...

A: The molecular weight of the solute can be calculated by using the colligative properties, depression...

Q: A. Weight of urea B. Weight of water C. Boiling point of distilled water D. Boiling point of urea so...

A: Molecular weight of urea can be calculated using colligative property of elevation in boiling point ...

Q: A 12.3 g sample of an alloy of Mg (35%) and Al (65%) produces H2 when added to 25 mL of 1.21 M HCI. ...

A: Given,  Total mass of the sample = 12.3 g  Mass percent of Mg = 35%  Mass percent of Al = 65%  Volum...

Q: Gaseous butane (CH;(CH,) CH,) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide ...

A:

Q: A certain liquid X has a normal boiling point of 135.80 °C and a boiling point elevation constant K,...

A: We have to use concept of elevation boiling point. From that we will calculate the molality. As mass...

Q: Which of the following structural formulas represent identical compounds and which represent constit...

A: Identical compounds are those having the same molecular formula and structure. Structural isomers ar...

Q: one greener approach for synthesising succini

A:

Q: *.Types of corrosion are Eight. O Nine. Seven. O O

A: Types of corrosion:

Q: .Cathode is . . terminal Positive. Negative. O

A: In an electrochemical cell, there are two electrodes - cathode and anode.

Q: Q1\ Answer with (True ) or (False) of the following : -innoring utical 6- Burettes, pipettes item fo...

A: 6. False..Burettes used in chemical analysis and pipettes used in manual method.  7 True 8.False. 9....

Q: blö 5 How many grams of Na3PO4 required * ?to prepare 8 N in 500 ml 323.6 gm. 218.6 gm. O 656 gm. O

A: Given that , Normality of the solution = 8N Volume of solution is = 500 ml. we have to calculate how...

Q: Calculate the mass of glucose (C,H,20,) that contains a billion (1.00 x 10') hydrogen atoms. Be sure...

A: No. of H atoms = 1.00×109 atoms mass of glucose = ? molar mass of glucose = 180 g mol-1 #of H in glu...

Q: red cabbage solution

A: In this question we have to explain that how can exercise affect the required time for the red cabba...

Q: Which of the following processes represent a decrease in entropy for the system described? Select al...

A: A multiple choice question based on chemical thermodynamics that is to be accomplished.

Q: Describe the following gel matrices used in gel filtration chromatography and discuss the types of s...

A:

Q: Calculate the number of nitrogen atoms in a 70.0 g sample of dinitrogen tetroxide (N,0.).

A: Given :- mass of N2O4 = 70.0 g  To calculate :- number of nitrogen atoms 

Q: A compound contains only carbon, hydrogen and oxygen. Combustion analysis of a 0.2010 g sample gives...

A: Empirical formula is the simplest whole number ratio of elements in a compound.  Molecular formula i...

Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.