Preparation of HCl solution a. Measure 20.7 ml of concentrated Hcl (37% wt HCI) using the pipet and transfer into a 250 ml volumetric flask containing 50 ml of CO2-free distilled water. b. Swrl the solution and dilute with CO2-free distilled water up the mark c. Shake the solution d. Calculate the concentration of the HCI 4. Preparation of NAOH solution A. a. Measure 10g of solid reagent grade NaOH pellets using the analytical balance b. Dissolve the NAOH pellets in 100mL of CO2-free distilled water in a beaker c. Transfer the solution into a 250 mL volumetric flask and dilute to the mark d. Shake the solution e. Calculate the concentration of the NaOH Solution

Q: 2. How would our experimental results change if a less polar mobile phase was used such as butanol…

A: In a reverse phase chromatography, the solid stationary phase is non-polar in nature and the liquid…

Q: Please answer part b.

A: The hydrogen atom is a single electron atom. The energy in a hydrogen atom depends on the energy of…

Q: A 50.00-mL aliquot of 0.0700 M NaCN is titrated with 0.140 M HCI. The reaction is: CN' (aq) + H3O*…

A: The question is based on the concept of titrations.   we are titrating a strong hydrochloric acid…

Q: The Lennard-Jones potential describes the interaction between noble gas atoms and is given by 12 E…

A: The equation given is,

Q: answer part a

A: Cell Potential or EMF of a cell -The difference between the electrode potential of the two half cell…

Q: Write orbital diagrams (boxes with arrows in them) to represent the electron configuration of carbon…

A: Solution- sp³ hybridization - • In this type of hybridization one's' orbital of first atom combines…

Q: Why are hydrogen bonds considered a special class of dipole-dipole interactions? Choose one or more:…

A: Hydrogen bonding is a special type of interaction between molecules but not a covalent bond. It is…

Q: Consider a buffer solution that consists of two separate components: the weak acid, HF(aq), and its…

A: Given, OH- is from a strong base, therefore it should react with acid.  Given, HF is a weak acid,…

Q: Answer a and b since this is my last question left.

A: A question based on stoichiometry, which is to be accomplished.

Q: 8. A student conducts an acid-base titration to investigate the change in pH during a reaction…

A: pH meter is used to measure the changes in the pH values during titration.

Q: 3. For the following pairs of compounds, indicate which are identical and which are isomers of cach…

A: The answer of the above question is given in attached image.

Q: Nitrogen forms a surprising number of compounds with oxygen. A number of these, often given the…

A:

Q: Question 2 You heat a 54.2 g sample of hexanes using a heater using 223.3 W of power for 10.0…

A: Given that: mass of sample = 54.2 g Power = 223.3 W Time = 10.0 s Initial temperature = 21.1 oC To…

Q: An acidic solution is 5 mM in each of the following metal ions: Cu2+, Zn2+, Pb2+, Ba2+. See the…

A: [Cu2+] = 5(mM) = 5×10-3(M)  [Zn2+] = 5(mM) = 5×10-3(M) [Pb2+] = 5(mM) = 5×10-3(M) [Ba2+] = 5(mM) =…

Q: 13. Hydrochloric acid neutralizes sodium hydroxide, forming sodium chloride and water. NaOH (aq) +…

A: Enthalpy of neutralization defined as the heat released when one mole of acid reacts with one mole…

Q: Part A Measure and record the masses of all the metal strips you set out in front of the test tubes.

A: 1. molar mass of Magnesium is24.305 g/mol. 2. Zinc mass number of 65.39 g/mol. 3. Copper atomic mass…

Q: To carry out a particular reaction, you determine that you need 0.0500 moles of ammonium chloride.…

A: Given: moles of NH4Cl = 0.0500 mol molarity of NH4Cl = 0.916 M

Q: Chemistry Reaction Rates #2 Name: Per: 1. For the reaction: 2 A + 3B → 4C + 5 D, the rate of the…

A: Rate of reaction can be written as :

Q: What is the volume, in liters, of 4.00 moles of methane gas, CH4, at 17 °C and 1.30 atm? Express…

A: Ideal gas equation: The temperature, pressure, volume, and mole of the gas are related by the ideal…

Q: 2) Draw the most stable electron orbital diagram for a chromium atom. Provide a brief definition for…

A:

Q: 2. 340 mL of oxygen gas are collected by displacement of water at 33 °C and 742 torr, where the…

A: since you have asked for question 2 only, we are providing a solution for the second question only.

Q: General Chemistry 2 .. Activity 4.5 The study of the kinetics of the reaction NO. following data: +…

A: Rate of a reaction: It can be defined as by saying that the change in concentration of reactants and…

Q: Part B The molecular formula mass of this compound is 210 amu. What are the subscripts in the actual…

A:

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

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

Q: 2. Label each of the following as an oxidation or a reduction reaction. a. 2,3-Butanedione to…

A:

Q: 10. For each set of reactions, 1) identify the reaction mechanism as SN1, Sn2, E1, and/or E2 (write…

A:

Q: Redo the reaction, but used H,0 with H,SO, as catalyst. Compare the alcohol formed from both…

A: The reaction of alkenes in presence of water where acid acts as the catalyst give alcohol as the…

Q: Chemical Compounds English Name Chemical Bonding Chemical Symbol Chemical Name Ex. lonic Bonding…

A: Since you have asked a question with multiple subparts we will answer only first 3 subparts for you.…

Q: 2. Human beings take in about 550.0 liters (L) of oxygen, O2, each day by breathing. Use the Ideal…

A: The question makes use of ideal gas equation. we have been given volume, temperature and pressure.…

Q: In a gas mixture, the partial pressures are argon 440 mmHg, neon 70 mmHg, and nitrogen 130 mmHg.…

A:

Q: An archaeologist finds some ancient jewelry made from bone. The jewelry has a carbon mass of 482 g…

A: Nuclear decay follows 1st order reaction.  Given the half-life of C-14, t1/2 = 5730 year…

Q: When using EDTA to determine metal ion concentration in a solution, what is the best way to overcome…

A: Masking agent is used to protect some component of the analyte from the reaction with EDTA and thus…

Q: What is the molar mass of a gas if a 0.227 g sample occupies 135 mL at 25 °C and 68.5 kPa? * O 191…

A: Substituting the given values in proper units in the ideal gas equation, the number of moles of the…

Q: Exercise 1: You got a job as an adjunct instructor at a community college and want to make 320 ml of…

A:

Q: LAH 1. NaH Ph- A 2. PHCH Br он OH A Ph. B Ph- Ph Ph он 2. A Ph OH B Ph. Ph Ph он Ph 3. A Ph. B Ph-…

A:

Q: please answer part B

A: Part B)    A 1.0 Litre of flask is filled with 1.0 g of argon at 25°C. A sample of ethane vapour is…

Q: What volumes of 0.1M solns of glycine hydrochloride and glycine must be mixed to prepare IL of a…

A: The preparation of a buffer is governed by Henderson-Hasselbach equation which is written as…

Q: please answer part c

A: The given reaction is, Electron affinity of Cl = -349kJ/mol Ionization energy of Na = 496kJ/mol…

Q: 2. A weak acid has a Ka of 3.7x106. Calculate the pH of a 0.30M solution of this acid.

A:

Q: Illustrate the concerted pathway for the following reaction. H2 Pt

A:

Q: b. The solvent is above the line where the sample spots are

A: TLC is a chromatographic technique that can be used to isolate compounds using a thin plate where…

Q: b. For each pair of acids, 1) draw the conjugate base and 2) circle the acid that is more acidic.…

A: To draw the conjugate base of given acids and to identify the more acidic compound in each pair.

Q: Q2: ): Five reasonable structures for [ SnCl(CH3):Py] (Py = pyridine) are given below: Py Py Cl Ру A…

A: A point group cl num of ir bands 5,no of raman bands 4,num of coincident 3   B.py 4 3 2

Q: A solution contains 4.50 moles of water, 1.05 moles of sucrose (C12H2011), and 1.20 moles of…

A: Given Moles of water = 4.50 mol Moles of sucrose = 1.05 mol Moles of glucose = 1.20 mol Total moles…

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.