MULTIPLE CHOICE QUESTION Dalton discovered that all compounds are made of elements molecules other compounds

Q: OH OH Na2Cr207 H3O* Select to Draw

A: Oxidising agent can be defined as a substance that oxidises other species and itself get reduced in ...

Q: Identify the compound based on the given spectra. Find the name of the molecule and its stretching f...

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Q: 3. Tina bought a drink that consists of 2.00 g aspartame (C14H18N2O5) dissolved in 250 g H20. Aspart...

A: Given mass of aspartame = 2g mass of water = 250 g

Q: Alkylation of acetylide ions with alkylhalides or i tosylates

A: alkylation

Q: Identify whether the mixing of each pair of solutions results in a buffer Check all that apply. 185....

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Q: 14 The reduction of iron(III) oxide to iron during steel-making can be summarized by this sequence o...

A: Answer of the question given below, 

Q: 2N,0, (g) – 2N,0, (g) +0, (g) At a certain temperature it obeys this rate law. -(3.0 M")[N,0, rate =...

A: 2N2O5(g) -----> 2N2O4(g) + O2(g) Rate = 3.0 M-1 s-1[N2O5]2 Initial concentration of N2O5. = 0.450...

Q: What was the concentration of my stock solution if I used 34mL of it to make 125ml of a 1.6 M diluti...

A: Given, Stock solution: Concentration of the stock solution (M1) = ? Volume of the stock solution (V1...

Q: Write the concentration equilibrium constant expression for this reaction. 3+ 3 L(s)+2Cr*(aq)+7H,0()...

A:

Q: The hydronium ion concentration in a solution of an unknown weak acid is 5.77 x 1011. What is the pK...

A: Pka value is depends upon concentration of H+ ions in the solution. 

Q: A buffer solution NaCsH3O3 (sodiu is present in the

A: Molarity of HC5H3O3 = 0.250 Molarity of NaC5H3O3 = 30.0ml Volume of HC5H3O3 = 0.220M Volume of NaC5H...

Q: Nitrogen and water react to form nitrogen monoxide and hydrogen, like this: N2(g) + 2 H2O(g) → 2 NO(...

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Q: The standard electrode potentials for the reduction of N2 to N2H4 and of O2 to H2O at 298 K are –1.1...

A: (i)    Cell Reactions             Anode: N2H4 + 4OH- →  N2  + 4H2O + 4e-                            ...

Q: A chemistry student needs 5.00 g of acetic acid for an experiment. She has available 250. g of a 15....

A: Given,  250 g of a 15.8% w/w solution of acetic acid in ethanol. And 5.00 g of acetic acid is needed...

Q: 1. Hg(ОАс)2, MEOH 2) NABH4

A: Major product  is obtained  by applying  reaction  mechanism  as per reagent  given  .

Q: Sketch a plot of the fraction of species, f, vs pH for Tyr. Show your calculations for several poin...

A: Answer -

Q: At a certain temperature, the equilibrium constant K for the following reaction is 5.36 × 10*": H,(g...

A: The equilibrium reaction given is, Given: K = 5.36 × 1011   

Q: 1. Select the incorrect statement. q is the symbol for heat q = mC;AT The unit for g is Joules q is ...

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Q: What is the test to identify the haloalkane functional group?

A: Test of haloalkane:- When hydrogen of alkane group is substituted by halogen, then the compound form...

Q: For urea-formaldehyde resins, measure the following properties for the condensation product ie. amin...

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Q: Q.2: Discus the kinetics of addition polymerization reaction

A: Polymers are the macromolecules composed of smaller repeating units caller monomers and have high mo...

Q: QUESTION 12 What is the osmotic pressure (1) of a 1.25-M solution of a nonelectrolyte solution at 25...

A: Osmosis pressure is the pressure applied to stop the osmosis.

Q: What is the systematic name of the structure shown? O 4-isopropyl-1-methylcyclohexene 2-methyl-5-iso...

A: We are given an compound and we have to write the Correct IUPAC NAME for this.

Q: Please answer with detailed mechanism, with all steps otherwise I'll downvote

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Q: Describe why parameters such as pH, conductivity, sodium, chlorides, fluorides, sulfates, hardness, ...

A: Low pH facilitates corrosion rate by providing H+ ions. This H+ increases corrosion rate drastically...

Q: Give handwritten answer- Write three characteristic features for Zieglar Natta polymerization.

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Q: What is the freezing point depression of a 1.50 m solution of sucrose in water? No need to include t...

A: Given :- molality of sucrose solution = 1.50 m  To be calculated :- freezing point depression

Q: Select the following statement that is not related to the principles of Atomic Absorption Spectrosco...

A: AAS technique is used for elemental analysis i.e., it help us to determine the amount of sample pres...

Q: Write the IUPAC names of the following organic compounds if given the structure. Draw the organic co...

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Q: Absorption What type of transition is induced by the electromagnetic radiation mostly absorbed by th...

A: A question based on UV-visible spectrum that is to be accomplished.

Q: Be sure to answer all parts. Calculate the number of cations and anions in each of the following com...

A: To calculate the number of cations and anions the number moles of the compound required. 

Q: When 1.006 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the temperatur...

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Q: QUESTION 8 Hydrogen bromide, HBr, is a strong electrolyte in water. What is the boiling point elevat...

A: The molality and elevation of boiling point can be calculated as 

Q: Select the following statement that is not related to the principles of Atomic Absorption Spectrosco...

A: Option A is incorrect since related to the principles of AAS. It allows the analysis of metals since...

Q: 2. Indicate whether the following balanced equations involve oxidation-reduction. If they do, identi...

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Q: Salt mixture: 2.64 g Mass of filter paper: 1.223 g Mass of filter paper and CaC2O4⋅H2O: 1.997 g M...

A: Mass percent is one of the ways to represent concentration of a solution or a mixture. Mass percent ...

Q: Column resolution is an indicator to identify the selectivities and efficiencies of the column abili...

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Q: Following AAS analysis, a graph of absorbance versus ppm nickel standard gave a best-fit line y = 0....

A: Given that, a calibration curve for the determination of aspirin is constructed from the known conce...

Q: A 3.682 g sample solution. What is the pK* of the solution? O 1.20 O 0.85 O 2.50 1.35 « Previous Nex...

A: Mass of K2CO3 = 3.682 g Volume of solution = 375 ml  

Q: how do we explain the behavior of gasses ?

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Q: QUESTION 5 Ethyl alcohol, C2H5OH, is a water-soluble nonelectrolyte. A solution is prepared by addin...

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Q: H H-C-C=C H H-C-H Give the systematic name of the structure shown U -U-エ エーUーエ エ

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Q: identify the mechanism

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Q: Carbon-hydrogen bonds exhibit a range of different chemical reactivity that depends on molecular str...

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Q: Given the following balanced equation, determine the rate of reaction with respect to [H2] N2(g) + 3...

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Q: ing statements is true of the detection limit of an instrument?

A: The first question is based on antiquity, so instead of solving it, solve the second question with t...

Q: Salt mixture: 2.64 g Mass of filter paper: 1.223 g Mass of filter paper and CaC2O4⋅H2O: 1.997 g M...

A: Limiting reactant is the one which is present is smaller amount in the reaction mixture and which de...

Q: Compare the rate of ESR in the given compound ÇH, Çi NH, (i) (ii) (iii) (iv)

A:  

Q: Consider the following exothermic reaction: C,H, (g) + C, (9) = C,H,Cl, (g) Part A If you were a che...

A: The chemical reaction :  C2H4(g) + Cl2(g) ----> C2H4Cl2(g)  Consider the exothermic reaction. To ...

Q: Explain the difference of an operational principle between flame atomic absorption spectroscopy (FAA...

A: