3.00 g of KCl is dissolved in 500.0 g of water to make an aqueous solution at 303 K. a. What is the concentration of KCl in ppm? b. What is the freezing point of this solution if 2.00 L of 0.100 M KCl (ρ = 1.05 g/mL) is added? The cryoscopic constant for water is 1.86 °C·kg/mol. Assume ideal behavior of the ions.

c. What is the vapor pressure in torr of the solution described in (b) at 303 K? You will need to look up the vapor pressure of water at this temperature.

Follow the steps provided in the simulation to add water to the graduated cylinder, select one of the three samples (copper, silver, or gold), set its mass to the values given in the statements below, and calculate its density. here is a summary of the steps required: add water by clicking and holding prepare a known volume of water button. until the desired volume of water has been added. if more than the desired volume is added, click the reset button. button and redo the procedure. a single click will add about 21.0 ml of water. to set the mass, click and hold weigh out metal button. until the desired amount of metal is added to the weighing pan. once the desired mass of the metal is added, release the button. transfer the metal to water and then click on calculate density button. to see how the density is calculated using water displacement to measure the volume of the solid. to save time you can approximate the initial volume of water to â±1 ml and the initial mass of the solid to â±1 g. for example, if you are asked to add 23 ml of water, add between 22 ml and 24 ml. which metals in each of the following sets will have equal density? check all that apply.

How does the motion of particles in a gas change as the gas cools

Sulfuric acid is a polyprotic acid. write balanced chemical equations for the sequence of reactions that sulfuric acid can undergo when it's dissolved in water.