Science Chemistry Chemistry questions and answers At what temperature would a 1.00 mm NaClNaCl solution freeze, given that the van't Hoff factor for NaCl is 1.9? KfKfK_f for water is 1.86 ∘C/m∘C/m . Express your answer with the appropriate units. A 0.050 MM solution of AlCl3AlCl3 had an observed osmotic pressure of 3.85 atmatm at …

Ethylene glycol, the primary ingredient in antifreeze, has the chemical formula C2H6O2C2H6O2. The radiator fluid used in most cars is a half-and-half mixture of water and antifreeze. a. What is the freezing point of radiator fluid that is 50% antifreeze by mass? KfKfK_f for water is 1.86 ∘C/m∘C/m. Express your answer to three significant figures and include the appropriate units. b. …

Part A Assuming complete dissociation of the solute, how many grams of KNO3KNO3 must be added to 275 mLmL of water to produce a solution that freezes at −−14.5 ∘C∘C? The freezing point for pure water is 0.0 ∘C∘C and KfKfK_f is equal to 1.86 ∘C/m∘C/m. Express your answer to three significant figures and include the appropriate …

What is the freezing point of radiator fluid that is 50% antifreeze by mass? K f for water is 1.86 ∘C/ m. Express your answer to three significant figures and include the appropriate units. What is the boiling point of radiator fluid that is 50% antifreeze by mass? K b for water is 0.512 ∘C/ m. Express your answer to one decimal place and include the appropriate units.

Question: ¿A qué temperatura se congelaría una solución de NaClNaCl de 1,00 mm, dado que el factor de van't Hoff para NaCl es 1,9? KfKfK_f para el agua es 1.86 ∘C/m∘C/m . Exprese su respuesta con las unidades apropiadas. Una solución de 0,050 MM de AlCl3AlCl3 tenía una presión osmótica observada de 3,85 atmatm a 20 ∘C∘C. Calcule el factor de van't Hoff iii para

In addition to a before-and-after pictorial representation, in energy problems it is often useful to draw energy bar charts, as the ones shown below. Taking the initial state of the system to be the moment when the sled is released from rest and the final state to be the moment when the sled comes to a stop, let KiKiK_i, UiUiU_i, KfKfK_f, and UfUfU_f be …

Question: Part A At what temperature would a 1.90 m NaCl solution freeze, given that the van't Hoff factor for NaCl is 1.9? Kf for water is 1.86 ?C/m Part B A 0.050 M solution of AlCl3 had an observed osmotic pressure of 3.85 atm at 20 ?C . Calculate the van't Hoff factor i for AlCl3. .

Question: Cyclohexane has a freezing point of 6.50 ∘C and a Kf of 20.0 ∘C/m. What is the freezing point of a solution made by dissolving 0.925 g of biphenyl (C12H10) in 25.0 g of cyclohexane?

Question: Based on these data, what is the value of the formation constant, Kf, of [Cu (NH3)4]2+? [Cu2+]=6.47x10-15 kf=

Science Chemistry Chemistry questions and answers How many 3.5−L−L helium balloons can be filled from the helium in the tank? (Assume an atmospheric pressure of 1.0 atmatm and a temperature of 298 KK.) A) What is the freezing point of radiator fluid that is 50% antifreeze by mass? KfKfK_f for water is 1.86 ∘C/m∘C/m.