kOH etand

Q: pH of the 2.5*10^3 M HA acid solution? ( Ka HA=1.8*10^-6)

A: Given, ka =1.8*10-6  Concentration of HA = 2.5*103 M 

Q: Solve this

A: What is isolated system?

Q: 3. In a William Ether Synthesis of Phenacetin experiment After being washed with 5% aq. NaOH, the or...

A: The saturated solution of sodium chloride in water is known as brine. Organic layer could be removed...

Q: If 50 ml 0.40 M HCl  is added onto the 40 ml 0.15 M NaCN solution, what is the final ph? (Ka HCN=4.9...

A:

Q: Find the pH of a 1.00-L aqueous solution containing 12.43 g of tris (FM 121.14) plus 4.67 g of tris ...

A: Introduction- The pH of a given solution is the hydrogen ion concentration in the acidic solution an...

Q: Hydrogen bond  form because water has a strong dipole? True or false

A: when more electronegative atoms of N,O,F are makes bonds with hydrogen then the bonding is known as ...

Q: Rank the following groups in order of decreasing priority. −CH=CH2, −CH3, −C≡CH, −H

A: −CH=CH2, −CH3, −C≡CH, −H Rank of the above groups in order of decreasing priority has to be given be...

Q: Balancing Chemical Equations STEP 4: Add in the coefficients LAl, +_C_N,→ _AI+ _(CN), STEP 1: Identi...

A: To balance the below chemical equation _Al2 + _C_N3 → _Al + _(CN)3

Q: A mixture of 6.00 g of O21g 2 and 9.00 g of CH41g 2 is placed in a 15.0-L vessel at 0 °C. What is th...

A: Dalton's law of partial pressures It states that the total pressure of a system containing mixture n...

Q: In 1997, at the United Nations Conference on Climate Change, the major industrial nations agreed to ...

A: As per our guidelines we have allowed to answer the first three subpart for you. Kindly repost the r...

Q: When 0.494 g of K3Fe(CN)6 is dissolved in 100.0 g of water,the freezing point is found to be 20.093°...

A: The number of ions  present in K3Fe(CN)6 has to be given, 

Q: Draw the condensed formulas for each of the following compounds:(a) dipropyl ether(b) 2,2-dimethyl-3...

A: Structural formulas of the compound given below: (a) dipropylether (b) 2,2-dimethyl-3-hexanol (c) 2-...

Q: Illustrate the following reactions giving a chemical equation for each :(i) Kolbe’s reaction(ii) Wil...

A: (i) Kolbe's reaction is a reaction of phenol with NaOH. This forms sodium phenoxide. This salt react...

Q: Now you know that vinegar, acetic acid containing, used as condiments for salad dressings. It is a w...

A: An acid which is dissociated to very less extent is called weak acid . For example :-  Acetic acid (...

Q: Determine the color and approximate wavelength absorbed most strongly by blue solution.

A: The electromagnetic spectrum specifies the rays from short wavelengths to long wavelengths. It shows...

Q: Hydrogen bond forms because water has a strong dipole 1. True  2. False

A: Hydrogen bonding :-  It is the strongest attractive  force among all intermolecular forces. Hydrogen...

Q: A container is filled with a gas to a pressure of 50.0 atm at 0°C. What pressure will develop within...

A: P1 = 50 atm T1 = 00C = 0 +273.15 K =273.15 K T2 = 200C = 20 +273.15 K =293.15 K

Q: Write and balance equations for the following acid-base neutralization reactions:

A: acid-base neutralization reaction: A neutralization reaction is when an acid and a base react to for...

Q: Question attached

A: Given,

Q: Electrophilic aromatic substitution usually occurs at the 1-position of naphthalene, also called the...

A: The reaction of cyclohexanol with Lewis acid BF3 would be given as, The above step is the first ste...

Q: Convert a speed of 221 mi/h to units of feet per minute.

A: Given, the speed = 221 mi / 1 h  We have to convert it in feet/minute. For this we have to know conv...

Q: Arsenic can be extracted from its ores by first reacting the ore with oxygen (called roasting) to fo...

A: Given information,           As4O6(s) + 6C(s) ⇌   As4(g) + 6CO(g) Addition of carbon monoxide Addit...

Q: Calculate the pH at the equivalence point when (a) 40.0 mL of 0.025 M benzoic acid (C6H5COOH, Ka = 6...

A: The pH at the equivalence point has to be given, Given, Addition of 20 mL of 0.05 M NaOH NaOH = 10-3...

Q: Draw a structural formula for each amine and amine derivative. Q.) Lithium diisopropylamide (LDA)

A: LDA or Lithium diisopropylamide is a amine derivative having molecular formula CH32CH2NLi which is u...

Q: Describe the Born–Haber cycle?

A: Born-Haber cycle is the method for measuring reaction energies.

Q: (а) Н (Б) Н (c) H Each of the monomers shown here can undergo free radical polymerization. For each ...

A:

Q: 2. In a William Ether Synthesis of Phenacetin experiment, the organic layer is washed twice with 5% ...

A: The structure of the acetaminophen is as follows: The acetaminophen contains an amide and a phenol ...

Q: Explain below statement ? The pKa of p-nitrophenol is lower than the pKa of m-nitrophenol (7.2 vs. 8...

A: The stability of a conjugate base decides the acidity of a compound.

Q: CAN YOU GIVE ME A SCIENCE UPDATE (RELATED TO CHEMISTRY) THAT IS MOST INTERESTING. PLEASE PROVIDE THE...

A: To find the new science update in the recent years

Q: After a proton is removed from the OH group, which compound in each pair forms a cyclic ether more r...

A:   After a proton is removed from the OH group, which compound in each pair forms a cyclic ether more...

Q: Explain what changes and what stays the same when 1.00 L of a solution of NaCl is diluted to 1.80 L.

A: Dilution is the process by which the concentration of a solution is decreased by the addition of sol...

Q: A solution of 0.34 M ZnBr is added to a solution of 0.76 M FeBr3. The Ksp of of -7 FeBr3 is 3. 55 x ...

A: 0.34 M ZnBr2 is added to a solution of 0.76 M FeBr3.We have to find the molar solubilityof FeBr3 in ...

Q: Question is attached

A: Given   In a __________ reaction, two or more elements or compounds form one product.

Q: The reaction SO2Cl2(g) → SO2(g) + Cla(g) is a first order reaction with a rate constant of 2.2 x 10-...

A: For the given reaction at T= 320℃ Rate Constant, k = 2.2 × 10-5 s-1 And the reaction follows the fir...

Q: 4 HCl(9)+O,(9) → 2H,O(g)+2Cl»(9) Of which reactant are there the most initial moles? Enter its chemi...

A: In a chemical reaction, reactants undergo reaction to form the products.  The quotient given in the ...

Q: Calculate the nuclear binding energies , in J/nucleon and MeV/nucleon of Boron.Proton ( 1.007825amu)...

A:

Q: What aldehyde or ketone gives this  alcohol upon reduction with NaBH4?

A:

Q: 10. Write all alternative (total of six) Lewis structures of CISO*. Calculate formal charges.n each ...

A: Lewis structure of a molecule furnishes information about the bonding between the atoms and the numb...

Q: What is the percentage of nitrogen, by mass, in calciumnitrate?(a) 8.54% (b) 17.1% (c) 13.7% (d) 24....

A: Calcium nitrate is a compound of formula CaNO32. One mole of calcium nitrate contains two moles of n...

Q: 53 For the following reaction, ll of the reactants and products are in their standard states/standar...

A: The reaction of zinc with tin(II)bromide furnishes zinc bromide and tin metal. The standard electrod...

Q: According to VSEPR theory, what determines the geometry of a molecule?

A: According to VSEPR theory, what determines the geometry of a molecule

Q: How much sodium does one need to prepare 1 kg of polystyrene of molecular weight 300,000 b anionic p...

A: In anionic polymerizations a counterion is always there which is derived from Sodium Anionic polymer...

Q: Which of the following statements about hydrogen bonds is NOT correct? OA. Hydrogen bonds act inside...

A:

Q: Use the standard entropy data to determine the change in entropy for each of the reactions listed in...

A: Note - Since you have posted a question with multiple sub-parts, we will solve first three sub - par...

Q: Each of the following compound  is either an aldehyde or a ketone  . Which line-angle formulas repre...

A:  

Q: Find the mass of water when 876 000 joules of heat was needed to raise the temperature from 25 to 75...

A: 1) Energy required to raise the temperature of water (Q)=876000 J 2) Initial temperature=25 degree C...

Q: Practice chemistry question

A: ∆G° = -RTlnk  ∆G° = Standard free energy change  R = universal gas constant  T = temperature  K = eq...

Q: How many grams of CO are needed to react with 3.02 g of Fe2O3?

A:

Q: Which one of these net ionic equations represents the reaction of a strong acid with a weak base? G...

A: Ionic equation is a chemical equation in which the electrolyte supplements in aqueous solution are i...

Q: Differentiate between qualitative analysis and quantitive analysis?

A: The overall articulation Qualitative Analysis alludes to examinations in which substances are distin...

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.