chemist carries out the reaction below and obtains 3.28g of zinc oxide(ZnO, FW= 81.39g/mol). Fill in the blanks to determine the percent yield of the reaction when 5.75g of ZnS (FW= 7.455g/mol) and 2.30g of O2 (MW= 31. 998g/mol) were used in the reaction. 2ZnS(s)+ 3O2(g)= 2ZnO(s) + SO2(g) Note that for two of the blanks, you will be entering the same answer. 1. What would be the mass in grams of ZnO produced based on the mass of ZnS used? answer: (blank) 2. What would be the mass in grams of ZnO produced based on the mass of O2 used? answer:(blank) 3. What is the theoretical yield of ZnO in grams?answer:(blank) 4. What is the limiting reagent? Enter the formula of compound. answer:(blank) 5. What is the percent yield of this reaction?answer:(blank)
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
A chemist carries out the reaction below and obtains 3.28g of zinc oxide(ZnO, FW= 81.39g/mol). Fill in the blanks to determine the percent yield of the reaction when 5.75g of ZnS (FW= 7.455g/mol) and 2.30g of O2 (MW= 31. 998g/mol) were used in the reaction.
2ZnS(s)+ 3O2(g)= 2ZnO(s) + SO2(g)
Note that for two of the blanks, you will be entering the same answer.
1. What would be the mass in grams of ZnO produced based on the mass of ZnS used? answer: (blank)
2. What would be the mass in grams of ZnO produced based on the mass of O2 used? answer:(blank)
3. What is the theoretical yield of ZnO in grams?answer:(blank)
4. What is the limiting reagent? Enter the formula of compound. answer:(blank)
5. What is the percent yield of this reaction?answer:(blank)
Thanks so much for your help.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
