At temperature 63.50 °c, the vapour pressures of pure h20 and pure ethanol, c2h5oh
are 175.00 and 4.00 x 102 torr, respectively. a solution is prepared by mixing equal masses
of h20 and c2h5oh.
a) calculate the mole fraction of ethanol in the solution.
b) what is the vapour pressure of the solution at 63.50 °c?
c) determine the mole fraction of ethanol in the vapour phase above the solution.
( 0.28, 238.20 torr, 0.47)

Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?

Actual ingredients of lab (the cookies i am actually making) 1/2 cup sugar 1/2 cup brown sugar 1 1/3 stick margarine 1 egg 1/2 tsp salt 1 tsp vanilla 1/2 tsp baking soda 1 1/2 cup flour 1 1/3 cup chocolate chip can you answer the questions below ? discussion 1. suppose you are given the following amounts of ingredients: 1 dozen eggs 24 tsp. of vanilla 1 lb. (82 tsp.) of salt 1 lb. (84 tsp.) of baking soda 3 cups of chocolate chips 5 lb. (11 cups) of sugar 2 lb. (4 cups) of brown sugar 1 lb. (4 sticks) of margarine a. for each ingredient, calculate how many cookies could be prepared if all of that ingredient were consumed. (for example, the recipe shows that using 1 egg- with the right amounts of the other ingredients- yields 24 cookies. how many cookies can you make if the recipe is increased proportionately for 12 eggs? ) b. to determine the limiting reactant for the new ingredients list, identify which ingredient will result in the fewest number of cookies. c. what is the maximum number of cookies that can be produced from the new amounts of ingredients?

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17