Exercise: Calculate the change in pH of pure water on heating from 25°C to 50°C (Kw = 5.47x10 -14) .

Q: What is the strength of the ionic interactions between an ion with 1 positive charges and an ion…

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Q: Exercise 2: When 20 ml. 0.1 M of EDTA is added to 50 ml. 0.05 M Ca, calculate the molar…

A: Given : Volume of EDTA solution = 20 mL = 0.020 L                         (Since 1 L = 1000 mL)…

Q: Additional Exercise 14.74 At 20 °C, an aqueous solution of HNO3 that is 35.0% HNO3 by mass has a…

A: (a) Solution contains 35.0% HNO3 by mass. Volume of solution = 2.24 L = 2240 mL Mass of solution is…

Q: Procedure Experiment Observation Inference A small quantity of the given unknown compound was added…

A: Functional group detection methods will help answering this question as:

Q: PLEASE ANSWER  1. What is the pH of the solution containing 0.20 M NH3 and 0.15 NH4Cl. 2.…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: EXERCISE 1: Preparation of a standard solution of copper(II) sulfate pentahydrate 1. Weigh out…

A: GivenMass of CuSO4.5H2O = 9.99 gMolar mass of CuSO4.5H2O = 249.69 g/molMoles of CuSO4.5H2O  = Mass…

Q: Exercise 2: In an experiment, 1.50 dm' of 0.30 mol dm NaCl were mixed with 2.50 dm of a 0.70 mol dm…

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Q: EXERCISE IT A 200 Mg sample ontains Fed3 & MgCl2. AMMonia Was added to the sample to precipitate the…

A: The chemical reaction FeCl3 + 3NH3 + 3H2O -----> Fe(OH)3(s) + 3NH4Cl  ................(1) MgCl2 +…

Q: Calculation ... What is the hydronium ion and hydroxide concentration in pure water at 100 °C where…

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Q: a) Using the following data that you collect from your experiment, determine the concentration of…

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Q: Calculate the pH of a 0.150 M ethylamine aqueous solution. (Kp = 5.6X10–4) Answer:

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Q: Exercise 5.0ml. sample of a pesticide containing chlorine was diluted to 25.0ml. Then nitric acid…

A: Note: Since you have posted a question with multiple independent parts, we will solve first part for…

Q: EXERCISE 12.9-VAPOUR PRESSURE OF SOLUTIONS, NON-VOLATILE SOLUTE A 35.0 g sample of ethylene glycol…

A:

Q: 1st attempt Feedback i See Periodic Table O See Hint Choose one or more: O C,Hg (g) + 50, (g) →…

A: A. Here, ∆n = nP(g) - nR(g) = 3-5-1 = -3  As ∆n = -ve, ∆S° is negative.  B. The order of disordeness…

Q: I Review I Constants A pure gold ring and pure silver ring have a total mass of 15.2 g. The two…

A: First calculate the mass of Water.

Q: Exercise# 1 Calculation of ascorbic acid in Vitamin C tablet: (i) Starch is used as an indicator:…

A: The moles of the solution is always constant. The number of moles is a ratio of the mass of a…

Q: Review I Constants Part A Burning of 15.5 g of propane: C,H, (9) + 502(9)→3 CO2(9) + 4 H20(1) AH°…

A: Given mass of propane = 15.5 g Molar mass of propane = 44 g/mol Number of moles of propane = 15.5/44…

Q: EXPERIMENT DETERMINATION OF PURITY OF SODIUMCARBONATE Show all of your calculations ! Mass of sodium…

A: The reaction will be, The formula of normality is,

Q: Exercise 4.6 Write molecular and net ionic equations for the successive neutralizations of each of…

A: Given, A successive neutralization reaction occurs between sulfuric acid and potassium hydroxide.…

Q: REPORT SHEET PROCEDURE A: Weight of Water needed (show calculations) Weight of Salt needed (show…

A: Mass of salt present in 100 g of salt solution = 10 g Mass of salt present in 1 g of salt solution =…

Q: EXERCISE 12.8- VAPOUR PRESSURE OF SOLUTIONS, NON-VOLATILE SOLUTE sume you dissolve 10.0 g of sucrose…

A: The given data: The mass of sucrose = 10.0 g The mass of the water = 225 g The temperature of the…

Q: Exercise 1 Ethanol and methanol form very nearly ideal solutions. At 20°C, the vapor pressure of…

A: First calculate mole fraction of each substance mole fraction is defined as ratio of mole of…

Q: Trial 1 Trial 2 M of NaOH(aq): Average M of NaOH(aq) from part I M of NaOH(aq): Average M of…

A:

Q: Exam .1. Compute the quantities of lime and soda required to soften raw water containing alkalinity…

A: Solution - According to the question - Given values - Alkalinity = 220 mg/l Hardness of CaCl2 =40…

Q: Activity 5: A pound of potato chips from Hailey's favorite brand costs $4.50. A 10 oz bag of the…

A: A common measurement system allows us to make direct comparison instead of having to know things…

Q: A solution of a fictitious silver salt, AgX, in pure water has a concentration of silver ions of…

A:

Q: ou have been given a sample of river water and have been asked to determine the concentration of…

A: Mass Of KOH =1.865 gMolar Mass of KOH = 56.1 g/moleNo of moles of KOH = Mass of KOHMolar Mass of…

Q: EXERCISE 1: Preparation of a standard solution of copper(Il) sulfate pentahydrate 1. Weigh out…

A: Molarity is defined as the number of moles solute in solvent in litre.  Number of moles =…

Q: Part A Calculate the solubility (in grams per 1.00 x 102 mL of solution) of magnesium hydroxide in a…

A: Solubility product for Mg(OH)2 is given by Ksp = 5.61×10−12 Part A: Given that: pH = 12 Calculate…

Q: Procedure: 1. Place few crystals of cupric sulfate pentahydrate, CuSO.•5H2O, in an evaporating dish.…

A: About copper sulfate pentahydrate:

Q: Flame Test of Known Samples Color of the flame: What color of the flame is Potassium? What color…

A: A flame test is an analytical procedure used in chemistry to detect the presence of certain…

Q: Procedure: Place 25 mL sample of vinegar, which contains acetic acid, CH3COOH, in a 250 mL…

A: Volume of vinegar used is 25mL Concentration of NaOH is 0.4600M Average volume of NaOH used for 3…

Q: Instruction Identify the type of analysis based on the description. More than answer is possible. 1.…

A: 1) L-ascorbic acid 500 medication contains L-ascorbic acid otherwise called ascorbic corrosive as a…

Q: Mass of empty 250-mL glass beaker: 100.7g Mass of 250-mL beaker and anhydrous citric acid…

A:

Q: EXERCISE 1: Preparation of a standard solution of copper(II) sulfate pentahydrate 1. Weigh out…

A: A numerical problem based on quantitative analysis, which is to be accomplished.

Q: The concentration of ammonia in a water sample can be measured by electrode. Why does the pH of each…

A:

Q: EXERCISE 2: Dilutions of Solution S Prepare dilute solutions of copper(II) sulfate pentahydrate from…

A: Concentration of diluted solution can be calculated using law of dilution: M2 × V2 = M1 × V1

Q: EXERCISE III - 5 1. A sample of feldspar weighing 1.500g is decomposed, and eventually there is…

A:

Q: Exercise 7. Compared to a solution at pH 5, a solution of the same volume at pH 9 has times…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: Activity # 2 Write at least 2 types of diseases that may be acquired by consuming products with the…

A: Diseases caused by nitrates and nitrites are 1) anemia, 2) matabolic diseases etc.  Diseases caused…

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

A:

Q: EXERCISE 1: Preparation of a standard solution of copper(Il) sulfate pentahydrate 1. Weigh out…

A: GivenMass of CuSO4. 5H2O = 9.99 gMolar mass of CuSO4. 5H2O = 249.69 g/molMoles of CuSO4. 5H2O = Mass…

Q: TRIAL ONE TRIAL TWO AVERAGE Concentration ime of Starch Disappearance (IN SECONDS) ime of Starch…

A: A rate of the reaction is described based on the speed in which the reactant decreases, or speed in…

Q: Self Assessment Exercise 3.1 - Enhanced - with Feedback 1 of 11 Part A Carbon monoxide and oxygen…

A: Initially, we have 5 CO(g) molecules and 2 O2(g) molecules.

Q: Exercise 5 The melting points of the 2-hydroxybenzoic and 4-hydroxybenzoic acids are respectively…

A: Hydrogen bonding is a type of dipole-dipole interaction of molecules when the hydrogen is bonded to…

Q: Reduce the formulation to make 10 pills. Show your complete handwritten solution (please insert a…

A: Since you have asked multiple questions, we will solve the first one for you. For remaining…

Q: Topic: Gravimetry Experiment Why is it necessary to filter 6N NH3 or NH3 in general when it is…

A: When performing the gravimetric analysis 6N NH3 or NH3 should filter before use because of following…

Q: Exercise 1: Standard Curve for Proteln Measurements: A standard curve for protein concentration is…

A: Since the protein concentration (mg/mL) is the independent variable, it will be taken on X-axis, and…

Q: EXERCISE 8 4/3/2, titration experiment NaoH was added dropwis e into a In at 25°C, 15 M conical…

A: This is a acid base titration.The pH of solution after adding 10ml of NaOH calculated as follows

Q: Data collected Experimental Procedure Weigh accurately about 0.51g of KHP and pour into a clean dry…

A: In a neutralization reaction, the moles of H+ ions by the acid is neutralized by the moles of OH-…

Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.