how to find q rxn and H soln

Q: Concentrated aqueous ammonia contains 1.14 mol NH3 dissolved in 2.47 mol

A: Given, Concentrated ammonia solution contains 1.14 moles of ammonia dissolved in 2.47 mole H2O.

Q: A 0.1 mol L-1 HClsolution  A 0.1 mol L-1 NaFsolution A 0.1 mol L-1 NaOHsolution A 0.1 mol L-1…

A: Given: To identify in which solution, calcium hydroxide is more soluble than pure water. The…

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

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Q: Which one is an example of a standard solution? 1. Sugar solution 2. Basic solution 3. Acidic…

A: A homogeneous mixture of two or more substances is known as a solution. The species which present in…

Q: The solutions listed below are in two arms of a tube and are separated by a semipermeable membrane.…

A: The solutions listed below are in two arms of a tube and are separated by a semipermeable membrane.…

Q: e enthalpy of neutralization in Joules/mmol for a solution resulting from 19 ation and 19 mL of a…

A: Mmol = Molarity × volume  Mmol of HCl = 0.80 ×1₹9 = 15.2 mmol Mmol of NaOH(n) =0.8 ×19 =15.2 mmol…

Q: a. What is the value of X? ( b. What is the value of Y? ( c. What is the value of Z? (

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

Q: Q5: Calculate the approximate rise in solution temperature if 1 liter of 1 N of HCl is mixed with 1…

A: Enthalpy of neutralization = -13.67 kcal/eq. q = 13.67 kcal mass of solution , m = 2 kg = 2000 g (…

Q: The names and chemical formulae of some chemical compounds are written in the first two columns of…

A: Like dissolves like i.e. polar compounds are soluble in polar solvents while the non-polar compounds…

Q: When 2.45 g of a certain molecular compound X are dissolved in 80. g of formamide (NH₂COH), the…

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Q: When 4.92 g of a certain molecular compound X are dissolved in 30. g of formamide (NH,COH), the…

A: Given : Mass of compound X i.e solute = 4.92 g Mass of formamide i.e solvent = 30 g = 0.030 Kg…

Q: A 1.6M NaOH basic solution has a density of 1.52g/mL. Calculate the mole fraction of the solvent.

A: Given data, Molarity of NaOH = 1.6M Density of Solution = 1.52g/mL The molar mass of NaOH = 40g/mol

Q: Determine the NO2−/NO3- ratio for a neutral surface water that is saturated with oxygen. What is the…

A: The electron activity for the conversion of nitrate (NO3-) to Nitrite (NO2-) can be calculated…

Q: How would you make 500 mL of 0.100 M NaOH(aq) solution? How would you standardize this NaOH…

A: Standardizing a solution is the process of determining its concentration by titration against a…

Q: Predict the relative enthalpy of hydration, hydration number, and solubility. Which of the following…

A: Largest magnitude enthalpy of hydration = Cr3+Largest hydration number = Cr3+Entropy-favored to…

Q: g the products of dissolution chemical formulae of some chemical compounds are written in the first…

A: Let's start by considering the solution formed by dissolving sucrose in water.

Q: 11) What ions, atoms, or molecules (in addition to the water molecules) are present after solid…

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Q: 12.39 g12.39 g sample of a weak acid (HA) is dissolved in 501.0 g501.0 g of water. The freezing…

A: Given mass of weak acid is 12.39 g and mass of water 501.0 g.Molar mass of weak acid is 93.0…

Q: In the standardization of HCl solution, a pale pink end-point using phenolphthalein indicator was…

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Q: Which of the following most likely describes surface water? Has a very high concentration of Ca2+…

A: Surface water is found on surface of the earth like river Lake Ocean rain etc

Q: Divers who go to great depths in the ocean experience large differences in pressure between the…

A: There are several factors that can affect the solubility of gases in blood in water: Pressure: The…

Q: i =

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Q: The Henry’s law constant for argon gas in water at room temperature is 5.4 × 105 torr/M.  What is…

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Q: Dispersion methods for obtaining colloidal systems. For which sols are these methods applicable?

A: Dispersion methods are the methods which are used for the preparation of colloids. The particles of…

Q: When 2.43 g of a certain molecular compound X are dissolved in 65. g of formamide (NH₂COH), the…

A: As we know,  Depression in freezing point,    Tf° - Tf = i * Kf * mWhere Tf° & Tf are freezing…

Q: When 1.13 g of a certain molecular compound X are dissolved in 75.0 g of formamide NH2COH , the…

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Q: Each row of the table below describes an aqueous solution at about 25 °C. Complete the table. That…

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Q: Use the References An aqueous solution of trichloroacetic acid, that is 3.00 percent by weight…

A: Given the weight percent of trichloroacetic acid(CCl3COOH) = 3.00 % w/w So 100 g of the solution has…

Q: Repeat the calculation for the value of the K in Part 1b, only this time, do not subtract the [H3O+]…

A: Concept based on the acid dissociation constant of weak acids and finding out the acid dissociation…

Q: Which salt would have the least effect on the freezing point of the solvent? a 15M Naci b. 0.5M…

A: Formula: ∆Tf= i×kf×m  Assume there is same solvent for each.

Q: The names and chemical formulae of some chemical compounds are written in the first two columns of…

A: Iron(III) iodide (FeI3) insoluble in water and it won't dissociate into ions.

Q: 2. Calculate the [I] (after dilution in the 50.00 mL flasks) for the four standard solutions you…

A: With dilution concentration of a substance decreases.

Q: 1- What is the significance of water solubility of chemical materials? 4 7:41 PM

A: Water solubility is a measure of amount of chemical substance that can dissolve in water.

Q: Determine the enthalpy of neutralization in Joules/mmol for a solution resulting from 19 mL of 0.9 M…

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Q: A 1.37 M solution of an acid with the formula C6H₂O7 has a density of 1.10 g/ml. Calculate the mass…

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Q: Sort and explain the degree of miscibility of 3 molecules in water: CH3COOH (acetic acid); C2H5OH…

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Q: Y Part A A solution contains 0.119 mol H₂O and an unknown number. moles of sodium chloride. The…

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Q: What is meant by Reversible sols.

A: The colloidal solution in which dispersed phase is solid and  dispersion medium is liquid is known…

Q: Identify which compound experiences solvation but not dissociation. Br Br K к Br

A: The compound which experiences solvation but not dissociation has to be identified.

Q: When 50.7 g of a certain molecular compound x are dissolved in 100 g of formamide (NH, COH), the…

A: Depression of freezing point is a colligative property. Colligative property depends on the number…

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.