Q4: A 250 ml solution of 0.505 M NaOH is titrated until neutralised into a 700 ml sample of HCl. What was the concentration of the HCl ? *

Q: Find the pH of a 0.350 Maqueous benzoic acid solution. For benzoic acid, K, = 6.5 x 10-5. a) 4.64 b)...

A: The dissociation of benzoic acid is as follows:      C6H5COOHaq    ↔ H+aq+ C6H5COO-I       0.350    ...

Q: Poor energy efficiency is one of the causes for energy shortage. Select one: O True O False

A: The solution is given below - 

Q: 9. What 9. What is the difference between a molecular element and an atomic element? List the elemen...

A: Element is a substance which cannot be broken down into simpler unit.It is purest form any substance...

Q: For the reaction A(g) + } B(g) 2C(g), a. determine the expression for the rate of the reaction in te...

A: Rate of reaction: It can be defined as by saying a change in concentration of reactants and products...

Q: Complete Solution for No.1 only. Thank you

A: In a HCP unit cell, the number of atoms are 4. Write the relation between radius and edge length of ...

Q: Write whether it will be E1, E2, SN1, and/or SN2 Show the mechanism(s) Write the MAJOR product(s) St...

A: k) The given compound is a secondary alcohol. Alcohols, upon treatment with TsCl in presence of weak...

Q: Two solutions, 50.0 mL of 1.00 M BaCl2(aq) and 50.0 mL of 1.00 M Na2SO4(aq), both initially at 21.5 ...

A:

Q: Exclusive of stereoisomers, how many products are possible in the electrophilic addition of 1 mol of...

A: The products are possible in the electrophilic addition of 1 mol of bromine to 2-methyl-1,3-butadien...

Q: The minority carriers in p-type semiconductors are

A: Doping is the process by which conductivity of a semi conductor increases. When an element of group ...

Q: Which of the following orbitals are not possible in an atom: 3f,4p, 5d, and 6p?

A: Which of the following orbitals are not possible in an atom ( 3f, 4p, 5d, and 6p).

Q: omplete the following table. Be sure each of your answer entries has the correct number of significa...

A: Food Energy content when eaten   calorie (cal) kilo calorie (kcal) kJ a slice of cooked baco...

Q: A certain reaction has a rate given by -rA = 0.075CA2, mol/cm3.minIf the concentration is to be expr...

A:     In this question, we have to find out the correct answer of given problem by the help of the con...

Q: At several points in the electron transport chain, iron cations gain or lose electrons by reactions ...

A: Oxidation is the reaction which involves the loss of electrons. Reduction is the reaction which invo...

Q: HBr Et I) HO 1) но III) Br Br Et Et Et

A: 1. First the epoxide get protonated. 2. Nucleophilic attack takes place from more substituted positi...

Q: Click the "draw structure" button to launch the drawing utility. What cyclic product is formed when ...

A: In presence of base , diketone compound undergo intermolecular condensation reaction i.e. aldol cond...

Q: A chemist measures the enthalpy change AH during the following reaction: 2 HNO,) + Mg(s)→Mg (NO3),(s...

A: Given thermodynamical Chemical equation is - 2HNO3(l) + Mg(s) -----> Mg(NO3)2(s) + H2(g)     ∆H =...

Q: Chemistry Question

A: The question is based on the concept of solutions.   Molarity is a method of expressing concentratio...

Q: Calculate the molality of 2.50 M NaCl solution (density of solution 51.08 g/mL)

A: Molarity of a solution is used to express the concentration of the solution. It can be calculated by...

Q: Given a theoretical acid, HA, with a pKa of 6.52. Calculate the pH of 30.0mL of 0.400M HA, when it i...

A: The total number of HA acids in the solution is determined below. nHA=MHA×VHA=0.400 mol/L×30.0 mL100...

Q: What diene and dienophile could you use to prepare the compound shown?

A: When diene and dienophile reaction in the presence of heat then it forms a cyclic-alkene product. Th...

Q: To how many significant figures would you need to express the mass of an oxygen-16 atom in AMU to no...

A: The number of significant figures needs to express the mass of an oxygen-16 atom in AMU has to be gi...

Q: Provide the polymers derived from the following reagents. Polimerización 1,2 Polimerización 1,4

A: In this question, draw a final polymer Product via 1,2-addition and 1,4-addition polymerization mech...

Q: What is the product of the following reaction? NaOH H. Me H20 Meo Select one: o a.

A: Aldol Condensation: When aldehydes and ketones having at least one α-hydrogen are treated with dilut...

Q: Q- What is the pressure of 43.8 grams of argon in kilopascals (kPa), at 78.3 oC in a 22.04 L contain...

A: Mass = 43.8 g Volume = 22.04 L Temperature = 78.3°C = 78.3 + 273 = 351.3K  Gas constant = 0.082 atm....

Q: Define the term Combusion?

A: The term combustion has to be defined.

Q: Give the name that corresponds to each abbreviation: (a) GTP; (b) dCDP; (c) dTTP; (d) UDP.

A: Nucleoside is the one which contains nitrogen base and sugar unit. Nucleotide is the one which conta...

Q: What is the percentage by mass of the solution that contains 10.0 grams of Silver Nitrate that has b...

A: Solution:     Percentage by mass is defined as the number of parts that exist in every 100 parts of ...

Q: In a certain conductivity cell, the resistance of a 0.01 M KCl solution is 150 W. The known molar co...

A: Interpretation -  To determine the cell constant (Kcell unit is cm-1) when in a certain conductivity...

Q: Ochem quest

A:

Q: If you have an empty burette in a burette clamp, in what order do you do these steps to fill the bur...

A: Given that,  We have a burette in burette clamp. The sequential steps to fill the burette with liqui...

Q: Describe the structure of the atom in terms of protons, neutrons, and electrons and express the rela...

A: The atomic number defined as the number of electrons or number of protons present in a neutral atom....

Q: Please answer the following question and circle your answer in the ‘word search box’ below.

A:

Q: Draw the structure of each of the following: a. a purine base b. a nucleoside that contains 2-deoxyr...

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you. ...

Q: The fuel cell has moving parts. The syngas is a mixture of. o co and H2 o co and O2 O co, and H2 o c...

A: Fuel cells have no moving parts.     Fuel cells are voltaic cells in which the reactants are continu...

Q: Draw all intermediates formed in this reaction sequence, including all products of each step as well...

A: In this question, we will draw all the intermidiates are final product and also we can draw the mech...

Q: Differentiate open, close and isolated system. Give 2 example each system.

A: Thermodynamics deals with the study of flow of heat or other forms of energy. The change in heat is ...

Q: The lowest five energy states in the Helijum atom (Z=2) have the following energy levels (assuming a...

A: The transition probability from one eigenstate to another is defined by the selection rule. Accordin...

Q: Calculate the mass of titanium (0.125 cal/g × °C) that requires 75.5 cal to heat the metal from 20.5...

A: The heat required is given by q=m.C.∆T where m is the mass, C is the specific heat and ∆T is the cha...

Q: Determine ∆G° for a reaction when ∆G = -138.2 kJ/mol and Q = 0.043 at 298 K. (R = 8.314 J/mol ･ K)

A: ∆G = -138.2 kJ/mol = - 138.2 × 10³J/mol Q = 0.043  T = 298 K  R = 8.314 J/mol ･ K   We know there is...

Q: SOCI2 : heat

A: The order of reaction sequence is given below

Q: Which of the following statements is a scientific theory? (a) The energy in an atomic nucleus is fou...

A: To find: The statements which are scientific theory

Q: Identify the photon in each pair with the greater energy.a. green light or yellow  lightb. red light...

A: Frequency of a light is directly proportional to the energy of photon while wavelength of radiation ...

Q: Consider the following system at equilibrium at 1.15×103 K:2SO3(g) 2SO2(g) + O2(g) If the VOLUME of ...

A: According to Le-Chaltlier's principle, If decreases the volume of system at equilibrium,system will ...

Q: Calculate the quantity of energy required to change 7.72 mol of liquid water to steam at 100oC. The ...

A: Dear student I have given answer to your question in the image format.

Q: Why do pressure cookers save time in the kitchen? Explain the effect of pressure on boiling point.

A:

Q: What are the units of Ion mobility?

A: The term ion mobility means that the speed achieved by an ion while migrating through a gas under a ...

Q: 2,3-Di-tert-butyl-1,3-butadiene is extremely unreactive in Diels–Alder reactions. Explain.

A: Diels Alder reaction is the reaction between a diene and a dienophile. 

Q: Bio energy increases methane gases which are harmful to earth's ozone layer. Select one: O True O Fa...

A: Bioenergy refers to the gases that are generated from natural organic sources, usually called biomas...

Q: Which of the following correctly completes the reaction? AICI3 → ? 2AICI3 → 2Al + 3CI2 O AICI3 → AIC...

A: Given : Incomplete reaction of Aluminium chloride. To find : Complete balanced equation.  Solution :...

Q: Which of the following statements is true? A. NACN is a weak base that adds to an enone through a 1,...

A: Given: Different- different statements regarding NaCN. To find: True statement. Solution: As we know...

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.