Which of the following represents malonic ester ?

Q: if the pka1 is 4.80 what is the ka1  if the pka2 is 7.34 what is te ka2

A: Given- pka1= 4.80 pka = 7.34  

Q: Under certain conditions the rate of this reaction is zero order in dinitrogen monoxide with a rate ...

A: Given-> 2N2O(g) ---> 2N2(g) + O2(g)  Rate constant (K) = 0.0013 M.s-1 Volume = 3.0L Initial Mo...

Q: Bé sure to answer all parts. Consider the reaction X+ Y-Z Initial Rate of Disappearance of [X] (M) [...

A: Solution -

Q: 2. Aside from the experiments performed, give another five (5) examples of physical and chemical cha...

A: In the given question we have to write the examples of physical and chemical observed during the rea...

Q: Determine the ΔUoreaction at 25 °C (in kJ/mol) for the following reaction: 5PbO2(s) + 4P(s, white)→P...

A: As per bartleyby guidelines i answered only first question so please don't mind and post other quest...

Q: Calculate the HLB value for the surfactant shown below. Use equations specifically designed for non-...

A: In an amphiphilic molecule like surfactants, there exists a balance between their hydrophilicity and...

Q: What is the enantiomeric excess (ee) of a mixture of enantiomers that is 45% the (-)-isomer and 55% ...

A: Given- + isomer is 55% - isomer is 45%

Q: he equilibrium expression fo

A:

Q: .3 Solubility What is a solution? Describe the two medium of a solution. Describe how a substono

A: As per our guidelines we can only solve first question. Please resubmit the other questions as next ...

Q: How much heat is removed from the condensation of water at 25 °C? Given: S° H2O (1) = 69.9 J/mol·K a...

A: In condensation gas become liquid ∆S = Sproduct - Sreactant  ∆S =  69.9 J/ mol K - 188.7 J/ mol K ∆S...

Q: What mass of AgI (234.8 g/mol) can be produced from a 0.8093 g sample that is 47.6% MgI2 (278.11 g/m...

A: 0.8093 g of sample has 47.6 % MgI2 . Here, we have to calculate the mass of AgI that can be produced...

Q: What molar ratio of salt to acid would be required to prepare a buffer solution with a pH of 5.9? Th...

A: Since you have asked multiple question, as per our company guidelines we are supposed to answer the ...

Q: 6. A 7.85-g sample of a compound with the empirical formula C5H4 is dissolved in 301 g of benzene. T...

A:

Q: The rate of a certain reaction is given by the following rate law: rate = k[NO]°[0,] Use this inform...

A: Order of reaction is the power raised to the concentration.

Q: Explain in a few sentences and/or with a diagram all conditions that must be met for a chemical reac...

A: The solution is given below - 

Q: 20.0 g of sodium acetate (CH3COONa) to 500 mL of a 0.150 M acetic acid (CH3COOH) solution. Determin...

A: Given,  pKa of acid = 4.74 Mass of Salt = 20.0 g Molar mass of Salt = 82 g/mol Moles of Salt = mass/...

Q: Identify whether the statement is true or false. All exothermic phase changes have a negative value ...

A: Entropy is the measure of randomness or disorderness.

Q: Rep

A: Y=mx+c where m= slope and C= intercept on y axis ie. m=∆H/R    and C=∆S/R

Q: A 50.0 milliliter sample of 3.00×10–3 molar FeSO4 solution is added to 50.0 milliliters of 4.00×10-6...

A:

Q: 24. The oxidation number of phosphorous in the phosphate anion, PO43 is; а. -3 b. +3 с. +5 d. -5 e. ...

A:

Q: For problems (1-7) use the equation: 3 NaHCO, + H,PO, ----> 3 CO, + 3 H2O +NaPO4 1. Number of moles ...

A: 4.

Q: A chemist must prepare 0.500 L of 2.00 M aqueous calcium bromide (CaBr,) working solution. He'll do ...

A: To solve this question, use the formula which contains two molarities and volumes in it and solve fo...

Q: at rate

A:

Q: 1ΔΙΝΟ] A[02] _ 1A[NO2] rate = Δt Δt 2 At

A: We have given the rate equation. Negative sign represents the rate of disappearance of reactants and...

Q: te the standard reaction free energy a

A:

Q: Why is the concentration of the water neglected in the rate law for the reaction studied in this exp...

A: Generally the terms involved in equilibrium expression should undergo change in their concentration ...

Q: The pattern of sunny and rainy days on planet Rainbow is a homogeneous Markov chain with two states....

A: Compute the probability that April 1 next year is rainy on Rainbow. 

Q: nucleus was fused with another nucleus (by chance) to form heavier elements such as Cr, Ni, Fe. You ...

A:

Q: moles

A:

Q: 5. Two isomers of [Co(H,O),(NH,)>CI] are found to have the exact same polarity, color, and mag- neti...

A: Isomers: The existence of coordination compounds with the same formula but different arrangements of...

Q: Cl CI CI

A: Here the first ketene formation takes place :  This reaction is called the Schmidlin ketene synthesi...

Q: What is the percent composition of H in C9H20? Record your answer to 2 decimal spaces.

A:

Q: Be sure to answer all parts. The reaction of peroxydisulfate ion (S20g²-) with iodide ion (I ) is S,...

A: We can use initial rate to calculate rate law.

Q: OH CI NaOH Cl, CI CI CI CI

A: We have to predict the steps of reaction with name.  

Q: For the reactions below write out the overall reaction and the equilibrium constant expressions for ...

A: Chemical equilibrium is defined as the stage at which both reactant and product are in equilibrium. 

Q: How is a coffee cup calorimeter a "constant pressure" device? In this scenario, what is the "system ...

A: Given mass of barium = 2.50 gram Given mass of water = 100 gram Initial temperature = 22 ℃  Final te...

Q: Which alkyl bromide(s) can form the alkene under E2 elimination conditions

A:

Q: The rate of a certain reaction is given by the following rate law: rate = k[H,][L] Use this informat...

A:

Q: e moles

A:

Q: 6. A buffer is prepared by adding 20.0 g of sodium acetate (CH3COONa) to 500 mL of a 0.150 M acetic ...

A:

Q: . For the following consecutive first order reactions K =2.0s- K =2.0s →Y the time (in seconds) requ...

A: Here it is given a first order consecutive  reaction.we will find the time required for Y to reach i...

Q: The half-equivalence point of a titration occurs half way to the equivalence point, where half of th...

A: Given :  1. Moles of monoprotic acid = 0.540 mole 2. Ka = 1.7 × 10-5   

Q: Calculate the number of moles of He atoms present in 5.55 g of He.

A: Given that, mass of He= 5.55 g molar mass of He= 4 g mol-1 then,

Q: The reaction of peroxydisulfate ion (S,05) with iodide ion (1) is s,0g (aq) + 31 (aq) → 2s0, (aq) + ...

A: The sum of the exponent term in the rate law for a chemical reaction is known as the order of the re...

Q: 6. Enumerate and describe the types of precipitates. 7. How will you control the size of precipitate...

A: 6) Precipitation is the process of transforming a dissolved substance into an insoluble solid from a...

Q: At a certain concentration of N2 and H2, the initial rate of reaction is 2.0 x 105 M / s. What would...

A:

Q: using FMO (orbital coefficients and delta EHOMO-LUMO

A:

Q: What metal ion is responsible for the red firework? Justify your answer.

A: Since you have posted multiple questions, the answer for first question is given below. Kindly repos...

Q: Calculate the HLB value for the surfactant shown below. Use equations specifically designed for non-...

A: Answer - The correct option is (e) = 14.1 Solution - According to the question - Given - In the give...

Q: If 20.0 g of H, reacts with 40.0 g of CuO which reactant is limiting?

A: Limiting reactant is the reactant which is present in less amount and is consumed first in the react...