) A pickpocket plans to steal the bar of gold from your purse and replace it with a sack of sand. Assume that the volume of the bar of gold(Au) and the bag of sand (silica oxide) are 641.9 mL.
[Density of gold is 19.32 g/cm3 ; Density of sand is 3.00 g/ cm3 and 1 mL= 1 cm3 ] (7marks)
A. Calculate the mass of each, the gold, and the bag of sand.

B. Would you notice the difference in the weight of the backpack?

C. Calculate the purse volume needed to hold an equivalent mass of sand, so it equals the weight of the
gold.

Predict the products butane (c4h10) + oxygen —>

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?

Given the following reaction: c3h8+5o2=3co2+4h20 how many grams of co2 will be produced 7 g of c3h8 and 98 g of o2