URGENT Ejercicios de Descenso Crioscopico

1-Calcular el descenso crioscópico de una solución de ClNa 0,5 molal sabiendo que Kc: 1,87ºC/m.

2-Calcular el punto de congelación de una sc 2 m de glucosa en agua. TºCagua= 0ºC, Kc= 1,86º/m.

3-Calcular el punto de congelación de una sc compuesta por 86g de glucosa (C6H12O6) y 500 gs de agua. Kc=1,86ºC/m.

4-Calcular el descenso crioscopico de una sc de anticongelante 10%m/msv disuelto en agua (C2H4(OH)2).

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?

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

Avariable that is not being directly tested during an experiment should be