Homework Answers
Add Answer to:
Questions 1. Calculate the mass percent of a) potassium and b) sulfur in alum. 2. If...
SYNTHESIS OF ALUM If 500g of laboratory grade aluminum potassium sulfate cost $8.25, is it cost...
SYNTHESIS OF ALUM If 500g of laboratory grade aluminum potassium sulfate cost $8.25, is it cost effective to make the aluminum potassium sulfate yourself? Consider the following data and the percent yield(68.6%) when determining the answer. Al foil cost $1.69 for 20 sq-ft and 1 square foot weighs 3.75g. Sulfate acid solution, 3M cost $9.80 for 500mL. Potassium hydroxide solution, 3M costs $12.80 for 250mL. When calculating the answer, only consider the amount of chemical needed and not the capital...
Synthesis of Alum (Potassium Aluminum Sulfate) from Aluminum Aluminum cans can be recycled to make potassium...
Synthesis of Alum (Potassium Aluminum Sulfate) from Aluminum Aluminum cans can be recycled to make potassium aluminum sulfate dodecahydrate, KAK(SO)12H20, which is abbreviated to "alum". The 12 waters are part of the overall formula. Alum can be used to make dyes, printing fabrics, making paper, adhesives, pickling of food and vets use it to induce a dog to throw up. x 1 rxn 2 run 3 The following are the four reactions that lead to alum: Al(s) + 2 KOH...
Alum is a compound used in a variety of applications including cosmetics, water purification, and as...
Alum is a compound used in a variety of applications including cosmetics, water purification, and as a food additive. It can be synthesized from aluminum metal, sulfuric acid, water, and potassium hydroxide. 2 Al(s) + 2 KOH(aq) + 4H2SO4 (aq) + 10 H20(1) — 2 KAI(SO2)2 · 12H40(s) + 3H2(g) Alum Using the provided data, determine the theoretical and percent yield for this alum synthesis. Note that aluminum is the limiting reactant. Mass bottle mass bottle with aluminum pieces final...
Experiment 7 Preparation of Alum PURPOSE oF EXPERIMENT: Prepare KAI(So,)2 12H20, an aluminum alum...
CHEM 101 LAB 7 PRELAB QUESTIONS B C AND D
Experiment 7 Preparation of Alum PURPOSE oF EXPERIMENT: Prepare KAI(So,)2 12H20, an aluminum alum, from aluminum metal. (Note: ExPERIMENT 8 describes the gravimetric analysis of the sulfate content in alum.) Alums have the general formula MM(So) 12HO, where M* is commonly Na". K', Tl., NH,., or Ag, and Mt''is A广, Fe". Cr". Ti". or Co. . Samples of these compounds have a variety of uses in our everyday lives. Sodium...
Calculate the molar mass of alum, KAI(SO4)2·12H20 (potassium aluminum sulfate dodecahydrate). Type the molar mass without...
Calculate the molar mass of alum, KAI(SO4)2·12H20 (potassium aluminum sulfate dodecahydrate). Type the molar mass without units, to the nearest whole number.
2. Potassium alum, synthesized in this experiment, has the formula KAI(SO) 12H:O; written as a double...
2. Potassium alum, synthesized in this experiment, has the formula KAI(SO) 12H:O; written as a double salt, however, its formula is K.SO AL(SO) 24H O. Refer to Table 14.1 and write the formula of ferric alum as a double salt. 3. Answer the following: a. What is the technique for securing a piece of filter paper into a funnel for gravity b. What is the technique for securing a piece of filter paper into a Buchner funnel for c. Why...
OD) A procedure for purifying solid product compounds. Question 8 (1 point) Alum is a compound...
OD) A procedure for purifying solid product compounds. Question 8 (1 point) Alum is a compound used in a variety of applications including cosmetics, water purification, and as a food additive. It can be synthesized from aluminum metal, sulfuric acid, water, and potassium hydroxide, as seen in the following equation: 2 Al(s) + 2 KOH(aq) + 4H2SO4(aq) + 22 H20(1) - 2 KAl(SO4)2-12H2O(s) + 3 H2(g) Using the data below, determine the theoretical yield for this alum synthesis. Assume that...
Alum [KAl(SO4)2·xH2O] is used in food preparation, dye fixation, and water purification. To prepare alum, aluminum...
Alum [KAl(SO4)2·xH2O] is used in food preparation, dye fixation, and water purification. To prepare alum, aluminum is reacted with potassium hydroxide and the product with sulfuric acid. Upon cooling, alum crystallizes from the solution. (a) A 0.4711−g sample of alum is heated to drive off the waters of hydration, and the resulting KAl(SO4)2 weighs 0.2564 g. Determine the value of x and the complete formula of alum. Value of x: Complete Formula: (b) When 0.7339 g of aluminum is used,...
-Lab_A for Synthesis The Synthesis of Alum DATA TABLE Mass of Al Used 116 40,5607 Mass...
-Lab_A for Synthesis The Synthesis of Alum DATA TABLE Mass of Al Used 116 40,5607 Mass of empty watch glass Mass of watch glass and Alum sample Mass of Alum Obtained Show calculations and/or discuss the following in your lab report Determine the theoretical yield of the alum. Use the aluminum foil as the limiting reagent and presume that the foil was pure aluminum. 1. 2. Calculate the percent yield of your alum crystals. 3. Discuss the factors that affected...
Calculate the experimental value for percent sulfate in alum. Calculations for Part 2 1. Experimental value...
Calculate the experimental value for percent sulfate
in alum.
Calculations for Part 2 1. Experimental value for percent sulfate in alum Results and Data Analysis Table 1: Determination of the Water of Hydration in Alum Crystals 42.565g Mass of crucible +cover+ alum 41.44292 Mass of crucible + cover Mass of alum Mass of crucible + cover + alum after heating 41.95279 0.50189 Mass of anhydrous alum 58.10 Moles of anhydrous alum til 0.6123 Mass of water of crystallization Moles of...
Synthesis of Alum (Potassium Aluminum Sulfate) from Aluminum Aluminum cans can be recycled to make potassium aluminum sulfate dodecahydrate, KAK(SO)12H20, which is abbreviated to "alum". The 12 waters are part of the overall formula. Alum can be used to make dyes, printing fabrics, making paper, adhesives, pickling of food and vets use it to induce a dog to throw up. x 1 rxn 2 run 3 The following are the four reactions that lead to alum: Al(s) + 2 KOH...
Alum is a compound used in a variety of applications including cosmetics, water purification, and as a food additive. It can be synthesized from aluminum metal, sulfuric acid, water, and potassium hydroxide. 2 Al(s) + 2 KOH(aq) + 4H2SO4 (aq) + 10 H20(1) — 2 KAI(SO2)2 · 12H40(s) + 3H2(g) Alum Using the provided data, determine the theoretical and percent yield for this alum synthesis. Note that aluminum is the limiting reactant. Mass bottle mass bottle with aluminum pieces final...
CHEM 101 LAB 7 PRELAB QUESTIONS B C AND D
Experiment 7 Preparation of Alum PURPOSE oF EXPERIMENT: Prepare KAI(So,)2 12H20, an aluminum alum, from aluminum metal. (Note: ExPERIMENT 8 describes the gravimetric analysis of the sulfate content in alum.) Alums have the general formula MM(So) 12HO, where M* is commonly Na". K', Tl., NH,., or Ag, and Mt''is A广, Fe". Cr". Ti". or Co. . Samples of these compounds have a variety of uses in our everyday lives. Sodium...
Calculate the molar mass of alum, KAI(SO4)2·12H20 (potassium aluminum sulfate dodecahydrate). Type the molar mass without units, to the nearest whole number.
2. Potassium alum, synthesized in this experiment, has the formula KAI(SO) 12H:O; written as a double salt, however, its formula is K.SO AL(SO) 24H O. Refer to Table 14.1 and write the formula of ferric alum as a double salt. 3. Answer the following: a. What is the technique for securing a piece of filter paper into a funnel for gravity b. What is the technique for securing a piece of filter paper into a Buchner funnel for c. Why...
OD) A procedure for purifying solid product compounds. Question 8 (1 point) Alum is a compound used in a variety of applications including cosmetics, water purification, and as a food additive. It can be synthesized from aluminum metal, sulfuric acid, water, and potassium hydroxide, as seen in the following equation: 2 Al(s) + 2 KOH(aq) + 4H2SO4(aq) + 22 H20(1) - 2 KAl(SO4)2-12H2O(s) + 3 H2(g) Using the data below, determine the theoretical yield for this alum synthesis. Assume that...
-Lab_A for Synthesis The Synthesis of Alum DATA TABLE Mass of Al Used 116 40,5607 Mass of empty watch glass Mass of watch glass and Alum sample Mass of Alum Obtained Show calculations and/or discuss the following in your lab report Determine the theoretical yield of the alum. Use the aluminum foil as the limiting reagent and presume that the foil was pure aluminum. 1. 2. Calculate the percent yield of your alum crystals. 3. Discuss the factors that affected...
Calculate the experimental value for percent sulfate
in alum.
Calculations for Part 2 1. Experimental value for percent sulfate in alum Results and Data Analysis Table 1: Determination of the Water of Hydration in Alum Crystals 42.565g Mass of crucible +cover+ alum 41.44292 Mass of crucible + cover Mass of alum Mass of crucible + cover + alum after heating 41.95279 0.50189 Mass of anhydrous alum 58.10 Moles of anhydrous alum til 0.6123 Mass of water of crystallization Moles of...
Most questions answered within 3 hours.
-
You're examining some of the tiny printing on one of the newer
twenty-dollar bills. A 1.5...
asked 2 minutes ago -
Discuss several common sources of secondary data coming from
government sources.
asked 4 minutes ago -
This is a basic java program where you convert units using only
loops, control statements and...
asked 5 minutes ago -
A sample survey at a supermarket showed that 204 of 300 shoppers
regularly use cents-off coupons....
asked 50 minutes ago -
1. Find the area under the standard normal curve that lies
outside the interval between z=...
asked 21 minutes ago -
In ________ mode, the interpreter reads the contents of a file
that contains Python statements and...
asked 37 minutes ago -
1.
The second-order rate constant for self-reaction of hydroxyl
radicals
2 OH → H2O + O...
asked 27 minutes ago -
What is the most important factor leading to improved resource
efficiency over the long run?
asked 23 minutes ago -
Defend the effectiveness of teamwork in an organization.
(Use no more than 30 words)
asked 25 minutes ago -
Promotional strategies can assist in moving a product through
the channel of distribution. (a) Briefly explain...
asked 25 minutes ago -
Discuss why new and improved security measures are not enough to
stop online crime, What is...
asked 31 minutes ago -
A person whose weight is 516 N is being pulled up vertically by
a rope from...
asked 44 minutes ago