What is the boiling point elevation of a solution consisting of 125.1 g sucrose, C12H22O11, dissolved in 115.7 g of water, ? Kb = 0.512 °C/m

5) While making an inventory of the Chemistry Laboratory, Din Djarin found a dusty amber bottle hidden in one of the cabinets and the bottle has the following label: el "Compound R with empirical formula C3H302. (empirical Mw = 71 g/mol), in 50.0 g of ethanol" A preliminary test concluded that this solution boils at 79.03°C and after evaporating the ethanol it is found that there are 5.5 g of compound R. a) Calculate the molality of the solution. (Tb of alcohol = 78.4 °C, Kb = 1.22 °C/m). mol m= kg 01402 Mol b) Calculate the molar mass of the solute. c) What is its molecular formula?. b) qu e/ he el e l

What is the solubility of Cd₃(PO₄)₂ in water? (Ksp of Cd₃(PO₄)₂ is 2.5 × 10⁻³³)

A chemistry student is given 5.00 L of a clear aqueous solution at 25.° C. He is told an unknown amount of a certain compound X is dissolved in the solution. The student allows the solution to cool to 15.° C. At that point, the student sees that a precipitate has formed. He transfers the liquid to a clean new beaker and throws away the precipitate. The student then evaporates the water from the liquid in the new beaker under vacuum. It weighs 1.00 kg. Using only the information above, can you calculate the solubility of Xin water at 15.° C ? If you said yes, calculate it. Be sure your answer has a unit symbol and the right number of significant digits. 0 yes no ☐ x10 X Olo S U 2

a student mixes 20.0 g of salt in 100.0 g of water at 20°C and obtains a homogenous solution. which salt could this be and why? the solubility of KCl at 20°C in n 100.0 g of water is 10.0 g and the solubility of KNO3 at 20°C in 100.0 g of water is 30.0g

Suppose you are presented with a clear solution of sodium thiosulfate, Na2S2O3. How could you determine whether the solution is unsaturated, saturated, or supersaturated?

If 10 g sucrose (C12H22O11) is dissolved in 500 g water What is the boiling point of the resulting solution? Kb for water = 0.512°C/m and If 10 g sucrose (C12H22O11) is dissolved in 500 g water What is the freezing point of the resulting solution? Kf for water = 1.86°C/m?

Complete combustion of 8.653 g of a compound of carbon, hydrogen, and oxygen yielded 21.83 g CO₂ and 3.831 g H₂O. When 18.00 g of the compound was dissolved in 288 g of water, the freezing point of the solution was found to be -0.952 °C. For water, Kfp = = 1.86 °C/m. What is the molecular formula of the compound? Enter the elements in the order C, H, O molecular formula =

(Q67) What is the freezing point of a solution made from 771.4 grams of benzene to which 42.4 grams of the nonelectrolyte cycloheptene (C7H12) has been added? (Report freezing temperature to the hundredths place - two decimal places)

2. Density of AgBr is 6.47 x 10 kg/m. AgBr has fcc lattice and molecular weight of AgCl is 187.77 g/mol. Calculate lattice constant (a) for AgBr.