Give an example of Calcination?

Q: Molybdenum is BCC and has an atomic radius of 0.14nm. Calculate a value for its lattice constant a…

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Q: Define the term desalination?

A: Water is one of the most important resources of earth. Fresh water sources are very limited to serve…

Q: Which of the following statement(s) is/are correct? a. Pressure has little effect on the solubility…

A: Solubility is defined as the ability of a solid, liquid, or gaseous chemical substance to dissolve…

Q: XB Based on the liquid-vapor equilibrium figure above, answer the following questions. a. Label all…

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Q: State whether the entropy of the system increases or decreases in each of the following…

A: More is the disorderness present in the atoms of a substance more will be its entropy.

Q: What is the heat of dissolution? Write the expression that gives the change of molar heat of…

A: Solution :     Heat gained or lost by the system is calculated by the amount of heat transfer during…

Q: Explain the terms selective solubility and sublimation.

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

Q: Match each term to the appropriate definition   homogeneous mixture: solute: solvent: saturated:…

A: Homogeneous mixture: It can be defined as the a solution which is a mixture of two or more compounds…

Q: identify percipitate include the phases  Ba(NO3)2+Na2SO4→BaSO4+2NaNO3

A: A precipitate is said to be formed when two solutions containing soluble salts are mixed and the…

Q: 200g of iron) ntrate (MW= 241.86g/mole) is added to 225.0g of watel (MVV determine the mole fraction…

A: Iron (II) nitrate dissolved in the water to give ferric ion and nitrate ion. The balanced equation…

Q: calculate the w/v percentage of 4.39g of sucrose in 293ml of water

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Q: . Considering the hydration spheres of sodium and potassium,would you expect lithium ions to easily…

A: When the amount of solute is dissolved in a solvent to make a homogenous mixture are known as…

Q: Define the term Osmatic pressure?

A: Osmotic pressure is a colligative property. The properties of dilute solutions which depend only on…

Q: The molar concentration of 290 ppm of Cs+ (132.91 g/mol) in a solution that has a specific gravity…

A: We have given that  The molar concentration of 290ppm of Cs+ in a solution has specific gravity of…

Q: What is a marine calcifier and what are the effects of acidification on marine calcifiers?

A: Marine calcier : Biodiversity in ocean eco-system, is quite large. Starting from a very small…

Q: Determine the molality of LiBr if 9.6141 g of LiBr was dissolved in 284.65 g of H2O. MW(LiBr) =…

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Q: How could you distinguish solution of sodium chloride (table salt) from a solution of sodium iodide…

A: A question based on writing chemical equation, which is to be accomplished.

Q: 1. What is volatilization? Explain two practices that would minimize volatilization.

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Q: Where is the mineral oil contained in the set-up for the determination of atmoshperic gases? A ID…

A: Displacement of the liquid height in the glass tubing (contained in D) is essential for the…

Q: Which one statement in italics is NOT correct?  Other given information is correct.   a. The…

A: As there are more than three parts of this question, we have solved the first three parts for you,…

Q: 3. The vapor pressure of methanol (1) at 298 K is 16.94 x 10³ Pa. Calculate A, G° (CH30H, g) –…

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Q: Give one application of the concept of freezing point depression

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Q: Identify the compound that can form hydrogen bonding? O A. CC14 O B. NO2 OC. CH4 O D. HF QUESTION 38…

A: H-bond is the bond formed between the opposite poles of polar molecules which contain hydrogen…

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

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Q: The latent heat of vaporization of water at 100 oC is 539 kcal/kg. Calculate the boiling point of…

A: Here we are required to find the boiling point of water at 600 mm of Hg

Q: 6. Describe each variable of the equation below: AHrxn = E(Hproducts)-E(Hreactants)

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Q: what is the effect of metals and alloys freezing range on the fluidity of the molten metal ??

A: Fluidity is a measure of distance up to which a molten metal or alloy will flow inside the mould…

Q: Discuss the basic thermodynamic concept behind freezing point depression.

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

A: Liquid ammonia is a solvent.

Q: Does the entropy of the system increase, decrease, or stay the same when a solid sublimes?

A: Entropy is the measure of randomness. When the randomness increase entropy increases.

Q: a. n b. M c. N d. X e. m 1. Which symbol expresses the concentration used for volumentric analysis?…

A: Here we need to first know what the symbols in the solution means:- a. n = no. of moles b. M =…

Q: How many grams of the solute is needed to prepare a 0.5 molal solution of Ba(OH)2 (MW = 171 g/mol)…

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Q: The volume of pure alcohol present is a 750 mL bottle of wine that is 11% (v/v) alcohol in water is

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Q: Calculate the mean ionic molality for 0.25m LaCls. [Ans. 1.1914 m] S70 nsmes

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

Q: How does this temperature dependence affect the amount of oxygen available for fish and other…

A: It is known that fishes and other aquatic animal’s gets oxygen from water for respiration.

Q: Calculate the normality of 0.2M Na2CO3 (M.wt = 106).

A: Normality is a measure of concentration  equal to the gram equivalent weight divided by volume of…

Q: Calculate the w/v percentage of 4.39 g of sucrose in 293 mL of water?

A: Answer: 1.5 % w/v

Q: What is the molality of a solution labeled "8.6% glucose (C6H12O6) by weight?" (glucose MW: 180.156…

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Q: ercentage by volume,% v/v

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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: What is the molality of the solution when 0.75 mol NaCl is dissolved in 1.23 kg water?   a. 0.095 m…

A: Molality - It is defined as the number of moles of solute per kilogram of solvent. Its SI unit is…

Q: If 2.00 g of helium gas and 5.29 g of oxygen gas are mixed together, what is the mole fraction of…

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Q: A 20.0-g sample of methyl alcohol (CH3OH, molar mass = 32.04 g/mol) was dissolved in 31.5 g of…

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Q: During the cooling of the aqueous KNO3 solution, you will be asked to record the temperature when…

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Q: Whilst investigating the combustion of hydrocarbon fuels, a student collected the gases released and…

A: Hydrocarbons are molecules composed of hydrogen and carbon only. Combustion reaction is a reaction…

Q: What is vapor pressure? Explain this by discussing the effects or application of vapor pressure in a…

A: This contains a string of three different questions which are not related to each other. Due to…

Q: Solubility of solids in liquids. In the assignment, you need to elaborate   the following points:…

A: The amount of solid that dissolves in liquid is called the solubility of solid in liquid. Solubility…

Q: I need help with question number 2

A: The vapour pressure of the liquid is calculated using Boyle's law.  It states that pressure is…

Q: decrease in entropy

A: Entropy is a measurement of disorderness. Entropy would increase if the disorderness is more and it…

Q: The normal freezing point of n-octane 1C8H182 is -57 °C. In what temperature range is it a…

A: The importance of Gibbs energy is that it gives information about the spontaneity of the reaction or…