Answered: Enumerate the procedures/processes in…

Science

Chemistry

Enumerate the procedures/processes in the determination of water hardness.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 96QRT

See similar textbooks

Related questions

Q: Calculate the molality of a sulfuric acid solution (density = 1.230 g/mL) whose concentration is…

A: molarity is defined as defined as no of moles of solute devided by volume of solution in liter.

Q: what is the value of the hardness index for a 750 ml sample of water contains 0.020 g of Ca^+2 and…

A: Hardness in water is due to the presence of dissolved salts of calcium and magnesium. It is unfit…

Q: Calculate the amount of KCl which must beadded to 1 kg of water so that the freezing point is…

A: When a substance is added to to solvent, the freezing point of the solvent decreases and the…

Q: Calculate the mole fraction of the total lons in an aqueous solution prepared by dissolving 0.400…

A: The ionic equation can be written as: The concept is based upon the mole fraction. The term mole…

Q: What happens when hydrated ferric oxide and arsenious sulphide sols aremixed in almost equal…

A: SOLUTION: Step 1: The Hydrated ferric oxide is a positive metallic sol and arsenious sulphide sol is…

Q: Describe a method for purifying colloidal solutions.

A: Dialysis is the process which is used for the separation of colloidal solutions by filtration or…

Q: Explain the terms selective solubility and sublimation.

A: Interpretation: The terms selective solubility and sublimation are to be explained.

Q: Substance Appearance Melting Point Electrical Conductivity Solubility in Water X lustrous, malleable…

A: Given Substance Appearance Melting Point Electrical Conductivity Solubility in water X…

Q: Classify each substance in the table as either a metallic, ionic, molecular, or covalent network…

A: Compound X is metallic solid. This is because it is lustrous and malleable in nature. Only metals…

Q: Describe how properties of seawater illustrate the two characteristics that define mixtures.

A: Mixtures: When two or more substances or chemical compounds are combined, they will result in the…

Q: Make a general statement on the effect of solids upon the freezing point of liquid in which they are…

Q: Identify which ONE of the following statements is INCORRECT relating to the dissolution of ionic…

A: Dissolution is the process of mixing of solute into the solvent.

Q: elevation in boiling point depression in freezing point O elevation of vapour pressure O osmotic…

A: The question is based on the concept of solutions. we have to identify which of the given property…

Q: Determine the boiling-point elevation of a 2.5m water solution of MgCl2.

A: The elevation in boiling point (∆Tb )is calculated with the expression given below in which i is the…

Q: e molality of lithium hydroxide ins

Q: These following things are colloid properties, except- a) Composed of 2 phases b) stable c)…

A: as per my assumption it is option- C Homogenous as Colloid is of heterogenous nature not homogenous…

Q: Which concentration unit is used when calculating colligative properties relating to the boiling…

A: Solution boiling point (solvent+non volatile solute )higher than pure solvent ΔTb= Ts - To where…

Q: a) The addition of 100 g of a compound to 750 g of CCl4 lowered the freezing point of the solvent by…

A: Since you have posted multiple questions, we will solve only first question for you. Please repost…

Q: Calculate the amount of temporary and permanent hardness of a water sample in units of Degree…

A: We have to find the temporary and permanent hardness of a water sample in units of Degree Clarke’s,…

Q: Camphor, C10H16O may be used as a solvent in molar mass determinations by freezing point depression.…

A: 0.556 g of Naphthalene, C10H8 (solute) nsolute = given mass /molar mass = 0.556 g / 128 g/mol =…

Q: Why do raisins float in mineral water with salt compared to distilled water with salt (where it…

A: Given: raisins float in mineral water with salt compared to distilled water with salt (where it…

Q: Give some related literatures about colligative properties and freezing point depression phenomenon

A: Collegative Properties: A solution's clligative property is determined by the ratio of total number…

Q: The addition of 10.00 g of a compound to 250 g of naphthalene lowered the freezing point of the…

A: Depression of freezing point: When a non-volatile solute is added to the solvent, the vapor pressure…

Q: What is the freezing point depression when 155 g of iodine (I2) crystals is added to 1,200 g of…

A: Given data contains, Mass of iodine is 155 g. Mass of benzene is 1,200 g=1.2 kg. The moles of iodine…

Q: Distinguish between dispersion methods and condensation methods for preparing colloidal systems.

A: Dispersion methods: that is, by breaking down larger particles. For example, paint pigments are…

Q: 9. How do we compare dissolution times in room temperature water to that of hot water? A. greater B.…

A: Dissolution is generally the bond breaking phenomenon where the solute - solute bond breaks and…

Q: Why does the freezing point of a pure solvent remain as a constant value but the freezing point of a…

Q: Calculate the amount of KC1 which must be added to 1 kg of water so that the freezing point is…

A: Kf of water is molal freezing depression constant. To calculate what amount of KCl is added in…

Q: Write the chemical reaction for the incongruent dissolution of spodumene.

Q: Why is a large freezing point depression constant (Kf) advantageous when determining freezing point…

A: As we know, ∆Tf=Kf×m when determining freezing point depression, a large freezing point depression…

Q: Calculate the volume of 30.0 % (v/v) isopropyl alcohol in water to form exactly 500 mL of solution.

A: Since % (v/v) is defined as % (v/v) = volume of solute X 100 / volume of solution

Q: Calculate the boiling point of a solution in which 45.0 g of CaCl2 (formula wt. = 110.99 g) have…

A: Since the density of water is 1 g/mL Hence the mass of water = density X volume = 2000 X 1 = 2000 g…

Q: What is the expected solubility of true salts to liquid ammonia?

A: Liquid ammonia is a solvent.

Q: What is the freezing point depression constant of a solvent when a 1.50 m solution of NaCl causes a…

A: When a solute is dissolved in the water, the vapor pressure of the solution is lower than the pure…

Q: Does the solubility of most inorganic compounds in water increase or decrease with temperature?

A: Solubility: It is the maximum amount of solute that can be dissolved in the given solvent at…

Q: Calculate the number of moles of: sodium hydroxide in 100 cm³ of 0.1 mol dm³ sodium hydroxide…

A: The number of moles = Molarity×volume×10-3

Q: The mole fraction of potassium nitrite (KNO2) in a solution is 0.0194. The solution density is…

A: Solution Given that Mole fraction of potassium nitrite = 0.0194…

Q: Determine the volumes of phenol, chloroform, and isoamyl alcohol required to prepare 250 ml of a…

Q: WHY IS ALCOHOL MISCIBLE IN WATER, WHILE OIL IS IMMISCIBLE IN WATER?

Q: What is the ideal level of water hardness for sea water?

A: Water hardness is mainly due to salts of calcium and magnisum being dissoved in water. The two types…

Q: 1.a) Define the term molar conductivity. How is it related to conductivity of the related solution?

A: 1 a. The molar conductivity of the solution at a given concentration is the conductance of volume v…

Q: not totally dissolve in cold water?

A: Kinetic energy is the energy posses by molecule by virtue of its motion. It is directly proportional…

Q: Calculate the weight of solid NaOH needed for the preparation of 500ml of 0.25N NaOH solution

Q: Which of the Following increase the rate at which a solid dissolves in a liquid? grinding the solid…

A: The solubility of solute in a solution can be affected by the particle sizes of solutes and…

Q: Determine the appropriate quantity (in terms of volume) of 50 wt.% NaOH solution (Specific gravity:…

A: The question is based on the concept of mass percentage. amount of substance present in hundred…

Q: The formula for freezing point depression is AT = %3D a. Kfm O b. K/ws/mol O c. w/Ws m O d. MW/kw

Q: What process or processes accounts for the presence of arsenic in well water?

A: When the level of Arsenic in the human body increases, a person suffers from Arsenic poisoning. Its…

Q: Why is it necessary to dry the ice before adding it to the warm water?

A: To explain: Why is it necessary to dry the ice before adding it to the warm water?

Question

Enumerate the procedures/processes in the determination of water hardness.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

The normal freezing point of a certain liquid X is 0.10 °C, but when 18. g of potassium bromide (KBr) are dissolved in 400. g of X the solution freezes at -1.2 °C instead. Use this information to calculate the molal freezing point depression constant K, of X. Round your answer to 2 significant digits. K₁ = 1 °C kg mol 1 D
A substance suggested as a possible solvent for use in molecular mass determinations by freezing point depression is 1,4 dioxane. When 1.050 g of benzamide was dissolved in 22.77 g of 1,4 dioxane the freezing point of the solution was 99.7 degrees Celsius. The freezing point of 1,4 dioxane is 11.82. Calculate the molal feeezijgbpoint depression constant for 1,4 dioxane.
The normal freezing point of a certain liquid X is -0.70 °C, but when 19. g of sodium chloride (NaCl) are dissolved in 850. g of X the solution freezes at -3.4 °C instead. Use this information to calculate the molal freezing point depression constant K of X. Round your answer to 2 significant digits.
The normal freezing point of a certain liquid X is 1.60 °C, but when 18.2 g of benzamide (C-H₁NO) are dissolved in 350. g of X the solution freezes at -0.4 °C instead. Use this information to calculate the molal freezing point depression constant K of X. Be sure your answer is rounded to the correct number of significiant digits. K₁-0 = °C.kg mol □ x10
The normal freezing point of a certain liquid X is 4.60°C, but when 40.g of iron(III) nitrate (FeNO33) are dissolved in 350.g of X the solution freezes at 3.7°C instead. Use this information to calculate the molal freezing point depression constant Kf of X. Be sure your answer is rounded to the correct number of significiant digits.
The normal freezing point of a certain liquid X is –7.20 °C, but when 18. g of alanine (C,H,NO,) are dissolved in 550. g of X the solution freezes at -8.7 °C instead. Use this information to calculate the molal freezing point depression constant K, of X. Round your answer to 2 significant digits.
The normal freezing point of a certain liquid X is 4.70°C, but when 83.g of benzamide (C7H7NO) is dissolved in 850.g of X the solution freezes at 0.6°C instead. Use this information to calculate the molal freezing point depression constant Kf of X. Be sure your answer is rounded to the correct number of significant digits.
What process or processes accounts for the presence of arsenic in well water?
How do we compare dissolution times in room temperature water to that of hot water?
The vapor pressure at 20 °C of pure hexane is 120. torr, and pure 2-methyl pentane is 172 torr. Determine the vapor pressure (torr) of hexane in a mixture of 24.0 g of hexane and 44.0 g of 2-methyl pentane. The molar mass of both hexane and 2-methyl pentane is 86.0 g/mol.
The normal freezing point of a certain liquid X is -2.7 °C, but when 12.2 g of urea (NH,) CÓ) are dissolved in 500. g of X, it is found that the solution freezes at -5.0 °C instead. Use this information to calculate the molal freezing point depression constant K, of X. Round your answer to 2 significant digits. olo Ar - 1 II °C• mol · kg x10
Describe a method for purifying colloidal solutions.