Although we usually think of substances as “burning” only in oxygen gas, the process of rapid oxidation to produce a flame may also take place in other strongly oxidizing gases. For example, when iron is heated and placed in pure chlorine gas. The iron “burns” according to the following (unbalanced) reaction: :math> Fe ( s ) + Cl 2 ( g ) → FeCl 3 ( s ) w many milligrams of iron(III) chloride result when 15.5 mg of iron is reacted with an excess of chlorine gas?
Although we usually think of substances as “burning” only in oxygen gas, the process of rapid oxidation to produce a flame may also take place in other strongly oxidizing gases. For example, when iron is heated and placed in pure chlorine gas. The iron “burns” according to the following (unbalanced) reaction:
:math>
Fe
(
s
)
+
Cl
2
(
g
)
→
FeCl
3
(
s
)
w many milligrams of iron(III) chloride result when 15.5 mg of iron is reacted with an excess of chlorine gas?
Automobiles are often implicated as contributors to global warming because they are a source of the greenhouse gas CO2. How many pounds of CO2 would your car release in a year if it was driven 110. miles per week? Gasoline is a complex mixture of hydrocarbons. In your calculations, assume that gasoline is octane (molecular formula C8H18) and that it is burned completely to CO2 and H2O in the engine of your car. Also assume that the car averages 27.3 miles per gallon and that the density of octane is 0.703 g cm-3.
Since the pandemic has hit, more people are growing their own gardens and processing the fruits of their work. One thing that is flying off the shelves are spices for canning, such as alum. From this lab, you have seen how easy it is to prepare an alum, and the ingredients to make this are not difficult to obtain. You are going to make a batch of pickles and the recipe requires 6.05g of alum for each quart jar of pickles and you plan on making 50 jar of pickles. The % yield of making alum is only 84.4%.
a. What is the actual yield of alum that you need to prepare to make your pickles?
b. What is the theoretical yield of alum required to prepare the pickles?
c. What mass of aluminum do you need to start with to make the required amount of alum for the preparation of the pickles?
As part of the aspirin synthesis lab the orgo students also had to perform the following calculation to demonstrate their knowledge. Are you able to help them work this out?
Saponification is a process in which soap is produced from the chemical reaction between animal fat (triglycerides) and a strong base such as KOH.
An example of such balanced chemical reaction is shown here:
C51H98O6 + 3KOH → C3H5(OH)3 + 3C16H31O2K
(Triglyceride) (Soap)
if during the saponification reaction 231.5 g of C51H98O6 is mixed with 231.5 g of KOH and 160 g of soap is produced.
Calculate the theoretical yield of soap C16H31O2K and indicate who is the limiting reactant. (Provide your answer to 2 decimal places)
Calculate the percent yield for this reaction (Provide your answer to 1 decimal place)
*Show ALL steps and mathematical equations involved in your calculations to help the orgo students. Remember to label all…
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell