4. Gold is reacted with Bromine gas according to the reaction 2Au + 3Br2 - 2AuBr3. Use the data table below to determine the percent yield of Gold Bromide.
Mass of Gold
39.49
(14 points)
Mass of Bromine
17.39
Theoretical Yield
?
Actual Yield
35.2*
97.29%
O 77.62%
89.5%
86.42%
5. Type your FIRST and LAST name *

The pressure inside a hydrogen-filled container was 2.10 atm at 21 ? c. what would the pressure be if the container was heated to 92 ? c ?

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation. 8. when a 2.5 mol of sugar (c12h22o11) are added to a certain amount of water the boiling point is raised by 1 celsius degree. if 2.5 mol of aluminum nitrate is added to the same amount of water, by how much will the boiling point be changed? show all calculations leading to your answer or use 3 – 4 sentences to explain your answer. 9. if 5.40 kcal of heat is added to 1.00 kg of water at 100⁰c, how much steam at 100⁰c is produced? show all calculations leading to an answer. 10. the freezing of water at 0⁰c can be represented as follows: h2o (l) ↔ h2o(s) the density of liquid water is 1.00 g/cm3. the density of ice is 0.92 g/cm3. in 3 – 4 sentences explain why applying pressure causes ice to melt.