Explain complete dissociation of the solute

Reference no: EM13218570

At what temperature would a 1.85 m NaCl solution freeze, given that the van't Hoff factor for NaCl is 1.9? Kf for water is 1.86 C/m.

Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that freezes at -14.5 C? The freezing point for pure water is 0.0 C and Kf is equal to 1.86 C/m.

Express your answer to three significant figures and include the appropriate units.

Reference no: EM13218570

Questions Cloud

Explain what is the final energy and n value of the atom : A ground-state H atom absorbs a photon and makes a transition to n=4 energy level. It then emits a photon of energy 4.085 x 10^-19 Joules. What is the final energy and n value of the atom?

What is the cost function cw for the production technology : production of widgets (W) uses labor (L) as its only input. The production function is given by W=F(L)=8*L^.5 and the marginal productivity MPL=4/L^.5. If widgets sell for $10, the price of labor is $8/hour, and there is a fixed cost of $25.

State light beam through the sample and minimal light passes : If you shine a light beam through this sample, minimal light passes through ( assume no light passes through). What if your sample allows 50% of light to pass through? How many bacteria are in your sample.

How many hours of labor should be hired to maximize profits : Production of widgets (W) uses labor (L) as its only input. The production function is given by W=F(L)=8*L^.5 and the marginal productivity MPL=4/L^.5. If widgets sell for $10, the price of labor is $8/hour, and there is a fixed cost of $25.

Explain complete dissociation of the solute : Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that freezes at -14.5 C? The freezing point for pure water is 0.0 C and Kf is equal to 1.86 C/m.

What is the pdv of the net earnings under the plan : Suppose that college education raises a person's wage by $30,000 per year, from $40,000 to $70,000. Assume that the interest rate is 3 per cent and there is no growth in wages. Suppose you are a high school senior and deciding whether or not to go..

Define what is the molar mass of the compound : What is the molar mass of the compound? Express your answer to two significant figures and include the appropriate units

Compare and contrast the software development life cycle : Compare and contrast the software development life cycle approach and an Agile methodology approach and provide a real Australian application that successfully used an agile methodology

Find out the original mass of liquid placed in the container : Determine the original mass of liquid, G, that was placed in the container. (ignore the volume occupied by the liquid in these calculations.)

User Account

All Pages