Homework Answers
Add Answer to:
OD) A procedure for purifying solid product compounds. Question 8 (1 point) Alum is a compound...
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...
This question has to do with an alum synthesis experiment from aluminum, KOH, and H2SO4. The...
This question has to do with an alum synthesis experiment from aluminum, KOH, and H2SO4. The overall reaction is given in equation (1-1): (1-1) 2Al(s) + 2KOH(aq) + 22H2O(l) + 4H2SO4(aq) ---> 2KAl(SO4)2.12H2O(s) + 3H2(g) Note: we used 0.045 moles of H2SO4 and 0.0175 moles of KOH in the experiment. Question 1: Given that KAl(OH)4 was limiting, how many moles of H2SO4 were actually used to form the maximum possible amount of KAl(SO4)2 (Hint: Moles of Al used in this...
Mass of aluminum - 0.54g mass of water + filter paper - 42.84g mass of alum product + watch class...
Chemical Conversion (Stoichiometry): Aluminum Scrap to Alum Data mass of aluminum - 0.54g mass of water + filter paper - 42.84g mass of alum product + watch class + filter paper - 43.70g Calculate the mass of your alum produce - this is the actual yield of you synthesis??? Calculate the molar mass of alum [KAl(SO4)2 * 12H2O] - round the result to the nearest 0.1 gram/mol??? Calculate the theoretical yield in grams for this reaction. Assume the aluminum is...
2Al(s)+2KOH(aq)+4H2SO4+22H2O(l)→2KAl(SO4)2⦁12H2O(s)+3H2(g) What is the limiting reactant, theoretical and percent yield of this equation? 1.03 grams of...
2Al(s)+2KOH(aq)+4H2SO4+22H2O(l)→2KAl(SO4)2⦁12H2O(s)+3H2(g) What is the limiting reactant, theoretical and percent yield of this equation? 1.03 grams of Al foil 35.10 grams of KOH 15 grams of Sulfuric acid 20 grams of water the mass of the product is 24.88 grams
During a "Synthesis of Alum" experiment, with 24.9mL of 1.4M KOH. After cooling the mixt Given...
During a "Synthesis of Alum" experiment, with 24.9mL of 1.4M KOH. After cooling the mixt Given the following balanced equation: OF Alum" experiment, a student uses 0.500g of aluminum foil and disson NOR. After cooling the mixture, the students adds 11.9mL of 9.OM H2SO4. 2 Al(s) + 2 KOH(aq) + 4 H,SO(aq) + 22 H200) — 3 H2(g) + 2 KAl(SO4)2-12 H20 a. Calculate the theoretical yield of alum. Show the process of finding the limiting reactant. [Molar Mass (Alum)...
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...
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...
Post La DUI LUI U UUDLUNS What is the biggest factor that causes vields of alum...
Post La DUI LUI U UUDLUNS What is the biggest factor that causes vields of alum in this experiment to be low? using too much Hasoy whold cause the yield to be in 2. A student reacted 1.01 g of Al with 25.0 mL of 2.00 M KOH according to the following reaction: 2Al(s) + 2KOH(aq) +6H2O(0) ► 2KAI(OH)4 + 3H2(g) a. How many moles of KOH were required to react with all of the aluminum? b. How many moles...
4.30. Using solubility rules, predict the solubility in water of the following ionic compounds. a. AI(OH) b. CaN...
4.30. Using solubility rules, predict the solubility in water of the following ionic compounds. a. AI(OH) b. CaN C. NH4CI d. KOH 4.32. Using solubility rules, decide whether the following ionic solids are soluble or insoluble in water. If they are soluble, write the chemical equation for dissolving in water and indicate what ions you would expect to be present in solution. (NE SO b. BaCO c. Pb(NOs)2 d. Ca(OH) 4.34. Write net ionic equations for the following molecular equations....
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...
During a "Synthesis of Alum" experiment, with 24.9mL of 1.4M KOH. After cooling the mixt Given the following balanced equation: OF Alum" experiment, a student uses 0.500g of aluminum foil and disson NOR. After cooling the mixture, the students adds 11.9mL of 9.OM H2SO4. 2 Al(s) + 2 KOH(aq) + 4 H,SO(aq) + 22 H200) — 3 H2(g) + 2 KAl(SO4)2-12 H20 a. Calculate the theoretical yield of alum. Show the process of finding the limiting reactant. [Molar Mass (Alum)...
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...
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...
Post La DUI LUI U UUDLUNS What is the biggest factor that causes vields of alum in this experiment to be low? using too much Hasoy whold cause the yield to be in 2. A student reacted 1.01 g of Al with 25.0 mL of 2.00 M KOH according to the following reaction: 2Al(s) + 2KOH(aq) +6H2O(0) ► 2KAI(OH)4 + 3H2(g) a. How many moles of KOH were required to react with all of the aluminum? b. How many moles...
4.30. Using solubility rules, predict the solubility in water of the following ionic compounds. a. AI(OH) b. CaN C. NH4CI d. KOH 4.32. Using solubility rules, decide whether the following ionic solids are soluble or insoluble in water. If they are soluble, write the chemical equation for dissolving in water and indicate what ions you would expect to be present in solution. (NE SO b. BaCO c. Pb(NOs)2 d. Ca(OH) 4.34. Write net ionic equations for the following molecular equations....
Most questions answered within 3 hours.
-
The rise of online shopping and Amazon, in particular, has
created major dilemmas for large food/CPG...
asked 4 minutes ago -
Assuming that the wave speed varies little when sound waves are
traveling through a material that...
asked 5 minutes ago -
Is oxygen difluoride polar or nonpolar?
nonpolar
polar
ionic
none of the above
asked 16 minutes ago -
Starting from rest, a car accelerates at a constant rate of 2.6
m/s2 for a time...
asked 12 minutes ago -
A pharmaceutical company wants to answer the question whether
time for a drug in pill form...
asked 15 minutes ago -
) Assume that in the market for widgets, demand is highly
elastic compared to supply. If...
asked 26 minutes ago -
Why is a personal interview the most important step in the sales
selection process? What are...
asked 36 minutes ago -
In Python rOverlap (x1, y1, w1, h1, x2, y2, w2, h2) A rectangle
is axis-aligned if...
asked 36 minutes ago -
If we observe in a protein solution that DNA is causing a
mixture 260/280 ratio ~0.9,...
asked 46 minutes ago -
Explain the steps involved in making cDNA from mRNA, and how you
would create a cDNA...
asked 47 minutes ago -
A beta (β) particle is described by which of the following?
Select the correct answer below:...
asked 50 minutes ago -
A new machine costs $150,000, lasts 10 years, has an annual
O&M cost of $50,000, and...
asked 53 minutes ago