When 5.31 g of a certain molecular compound X are dissolved in 70. g of formamide (NH,COH), the freezing point of the solution is measured to be 1.9 °C. Calculate the molar mass of X. If you need any additional information on formamide, use only what you find in the ALEKS Data resource. Also, be sure your answer has a unit symbol, and is rounded to the correct number of significant digits. Oxto

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: The normal freezing point of a certain liquid X is -2.7 °C, but when 12.2 g of urea ((NH,),CO) are…

A:

Q: Calculate the molality of a solution prepared by dissolving 1.50 g of sodium hydroxide (NaOH) in 112…

A: molality is one of the ways to express the concentration of solution.

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

A:

Q: -4 At 25.0 °C the Henry's Law constant for nitrogen trifluoride (NF, gas in water is 7.9 x 10…

A:

Q: 25. Which of the following affect the amount by which the freezing point of liquid is lowered by the…

A: Depression in the freezing point is a colligative property. The value of colligative properties…

Q: Do you expect the freezing-point depression constant, Kf, to change when you change the solute? When…

A: The properties of the solution that depend on the number of moles of solute are termed as…

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: TRUE OR FALSE: The property of the solution remains constant even if its composition varies.

A: Given statement is :  The property of the solution remains constant even if its composition varies…

Q: but when 17.0 g The normal freezing point of a certain liquid x is 3.90 °C, benzamide (C,H,NO) are…

A: Given: The normal freezing point of liquid X = 3.90 oC When 17.0 g of benzamide are dissolved in…

Q: When 274. mg of a certain molecular compound X are dissolved in 100g of formamidethe freezing point…

A:

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

A:

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 certain substance X melts at a temperature of 7.4 °C. But if a 350. g sample of X is prepared with…

A: To calculate the molal freezing point depression constant Kƒ of substance X, we first need to…

Q: A 0.01 m solution of a weak electrolyte ionizes into 4 ions freezes at -0.062C. What is the apparent…

A: Solution is made up of two components which are solute and solvent. Solute is present in the minor…

Q: When 4.33 of a certain molecular compound X are dissolved in 30. g of benzene (c,H,), the freezing…

A: Given: The mass of compound X dissolved in 30 g of benzene = 4.33 g The Kf for benzene = 5.07…

Q: When  238.   mg  of a certain molecular compound X are dissolved in  90.0   g  of benzonitrile…

A:

Q: Some chemical compounds are listed in the first column of the table below. Each compound is soluble…

A: The compounds which are formed by the complete transfer of electrons from one species to other are…

Q: When 2.06 g of a certain molecular compound X are dissolved in 90. g of benzene (CH), the freezing…

A: mass of solute = 2.06 g mass of solvent = 90.0 g Solvent = benzene Freezing point = 3.5 oC

Q: The freezing-point depression of a 0.0425 m trichloroacetic acid solution is 0.147 K. Calculate the…

A: We will use colligative property to calculate vant hoff factor then calculate degree of…

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

A:

Q: When 188. mg of a certain molecular compound X are dissolved in 25.0 g of dibenzyl ether be 1.3 °C.…

A: Mass of compound X= 188 mg Freezing point of solution= 1.3°c Mass of dibenzyl ether= 25 g

Q: When 5.84 g of a certain molecular compound X are dissolved in 95.0 g of benzonitrile C6H5CN, the…

A: The depression in the freezing point of the solution is the multiplication of van't Hoff factor,…

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: The freezing point of a liquid will change when a solute is added. Explain how the addition of salt…

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

Q: When 4.10 g of a certain molecular compound X are dissolved in 80.0 g of dibenzyl ether…

A:

Q: When 173. mg of a certain molecular compound X are dissolved in 100 g of cyclohexane (C6H12), the…

A: Answer:For a non-electrolyte and non-volatile solute dissolved in a solvent, depression in freezing…

Q: One particular pungent gas is the toxic hydrogen sulphide (H2S). Hydrogen sulphide develops an odour…

A:

Q: 100mL of a 0.100M solution of NaCl is prepared (standard solution). This solution will be used to…

A:

Q: The addition of 0.125 g of an unknown, non-ionic compound to 100 g of cyclohexane lowered the…

A: Since lowering in freezing point is given by  lowering in freezing point = Kf X m…

Q: Benzene and toluene form nearly ideal solutions. At 40°C, a solution composed of 1 mol benzene and 1…

A: Vapor pressure of the solution at 40 0C = 110 mmHg Vapor pressure of solution when 1 mol of benzene…

Q: What is the composition of a methanol (CH, OH) - propanol (CH, CH, CH, OH) solution that has a vapor…

A: Given : Vapor pressure of solution = 192 torr.

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…

A:

Q: A solution made by dissolving 150.0 g of an unknown compound in 375.0 mL of benzene to make a…

A: Given that: Mass of unknown compound = 150.0 g Volume of benzene = 375.0 mL Freezing point…

Q: A solution is made by dissolving 0.656 mol of nonelectrolyte solute in 789 g of benzene. Calculate…

A: Given,  The moles of nonelectrolyte = 0.656 mol.  The mass of benzene = 789 g.  The boiling point of…

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

A: KCN KCN dissociate almost completely into its corresponding ions. Thus, the major species present:…

Q: The solubility of Mg(OH)2 in water at 25 °C is measured to be 0.0096 Use this information to…

A:

Q: The freezing point of a liquid will change when a solute is added. Explain how the addition of salt…

A: Given: Freezing point of water = 0.0 oC molality of CaCl2 solution = 2.80 m Van`t Hoff factor of…

Q: પાયલ બહેન

A: The number of moles of a weak acid can be calculated as: Moles = given mass/ molar mass…

Q: When 4.13 g of a certain molecular compound X are dissolved in 35. g of cyclohexane (C6H₁2), the…

A:

Q: aluminum hydroxide has a Ksp value of 2.0x10-32.  This indicates that aluminum hydroxide is…

A:

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

A: Iconic compounds are easily soluble in water and they can dissociate into respective ions in…

Q: Predicting the products of dissolution The names and chemical formulae of some chemical compounds…

A: We all know water is a universal solvent and most of the things are get dissolved in it. Water is a…

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: When 1.06 g of a certain molecular compound X are dissolved in 85.0 g of dibenzyl ether…

A: we need to calculate molar mass of the compound X

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.