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Calculate the molar mass of alum, KAI(SO4)2·12H20 (potassium aluminum sulfate dodecahydrate). Type the molar mass without...
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...
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...
muy 2A Lab 12: Synthesis of Alum 1. Calculate the formula mass of NaAl(SO4)2 12H20. 2....
muy 2A Lab 12: Synthesis of Alum 1. Calculate the formula mass of NaAl(SO4)2 12H20. 2. Calculate the moles of 1.00 gram aluminum. 3. Using the answer from question 2, calculate the moles of NaAl(SO4)2 12H20 that can be produced given the following balanced chemical equation: Nat! + A1*3 + 28042 +12H20 → NaAl(SO4)2 12H20 4. Calculate the grams of NaAl(SO4)2 12H2O from the answer in question 3. 5. If 14.34 g of NaAl(SO4)2 12H20 was produced from the reaction,...
One useful method for recycling scrap aluminum converts some of it to common alum [potassium...
One useful method for recycling scrap aluminum converts some of it to common alum [potassium aluminum sulfate dodecahydrate, KAl(SO4)212 H2O], an important dyefixative and food preservative. 4 significant figures.(a) How many moles of potassium ions are in 356 g alum?(b) What is the mass % S in alum (to 3 significant figures)?(c) What is the maximum amount of alum (in metric tons) that can be prepared from 24.3 metric tons of scrap aluminum (1 metric ton = 1000 kg)?
Prelab Questions: Name 1) What is the molar mass of KAl(SO4)2 12H20 ? (the 12 waters...
Prelab Questions: Name 1) What is the molar mass of KAl(SO4)2 12H20 ? (the 12 waters are part of the molecule) 2) Calculate the mass of alum that can be produced from 14.471g of Al 3) Calculate the mass of alum that can be formed from 0.724 moles of KOH 4) Calculate the mass of alum that can be formed from 1.10 mole of H2SO4 5) a) Based on the data above which reactant is the limiting reactant? b) What...
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...
theoretical value for percent sulfate in alum 2. Theoretical value for percent sulfate in alum Results and Data Anal...
theoretical value for percent sulfate in alum
2. Theoretical value for percent sulfate in alum Results and Data Analysis Table 1: Determination of the water of Hydration in Alum Crystals Mass of crucible + cover + alum 43.10509_-l water Mass of crucible + cover 4.09959 Mass of alum 1.00559_ Mass of crucible + cover + alum after heating 42.65019 Mass of anhydrous alum 0.55069 Moles of anhydrous alum 0.55063 Alun 0.002132 mol nem 3 351 21) Mass of water of...
In the final reaction, aluminum sulfate reacts with potassium sulfate to generate alum. The bal- anced...
In the final reaction, aluminum sulfate reacts with potassium sulfate to generate alum. The bal- anced chemical equation is given in the table below. Identify the reaction type(s) and record your observations for this step. 4. Unbalanced Chemical Reaction 2 KAI(SO2 12 H20(s) AL(SODs(aq) + K2SO (aq) + 24 H20(0) Reaction Type(s) Observations 5. Combining each of the four individual reactions give the overall reaction for the four-step process. Write the balanced chemical reaction for the overall reaction. Unbalanced Chemical...
b. What is the molar mass of aluminum ammonium sulfate dodecahydrate? Use the periodic table in...
b. What is the molar mass of aluminum ammonium sulfate dodecahydrate? Use the periodic table in the back of the lab manual to answer this question. Formula: Molar mass of one mole of atoms x # of each species = total molar mass per element N: H: Al: S: O: Molar mass of NHAI(SO4)2·12H2O =
Chemical Conversion (Stoichiometry): Aluminum Scrap to Alum Data mass of aluminum - 0.54g mass of water...
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...
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...
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...
muy 2A Lab 12: Synthesis of Alum 1. Calculate the formula mass of NaAl(SO4)2 12H20. 2. Calculate the moles of 1.00 gram aluminum. 3. Using the answer from question 2, calculate the moles of NaAl(SO4)2 12H20 that can be produced given the following balanced chemical equation: Nat! + A1*3 + 28042 +12H20 → NaAl(SO4)2 12H20 4. Calculate the grams of NaAl(SO4)2 12H2O from the answer in question 3. 5. If 14.34 g of NaAl(SO4)2 12H20 was produced from the reaction,...
Prelab Questions: Name 1) What is the molar mass of KAl(SO4)2 12H20 ? (the 12 waters are part of the molecule) 2) Calculate the mass of alum that can be produced from 14.471g of Al 3) Calculate the mass of alum that can be formed from 0.724 moles of KOH 4) Calculate the mass of alum that can be formed from 1.10 mole of H2SO4 5) a) Based on the data above which reactant is the limiting reactant? b) What...
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...
theoretical value for percent sulfate in alum
2. Theoretical value for percent sulfate in alum Results and Data Analysis Table 1: Determination of the water of Hydration in Alum Crystals Mass of crucible + cover + alum 43.10509_-l water Mass of crucible + cover 4.09959 Mass of alum 1.00559_ Mass of crucible + cover + alum after heating 42.65019 Mass of anhydrous alum 0.55069 Moles of anhydrous alum 0.55063 Alun 0.002132 mol nem 3 351 21) Mass of water of...
In the final reaction, aluminum sulfate reacts with potassium sulfate to generate alum. The bal- anced chemical equation is given in the table below. Identify the reaction type(s) and record your observations for this step. 4. Unbalanced Chemical Reaction 2 KAI(SO2 12 H20(s) AL(SODs(aq) + K2SO (aq) + 24 H20(0) Reaction Type(s) Observations 5. Combining each of the four individual reactions give the overall reaction for the four-step process. Write the balanced chemical reaction for the overall reaction. Unbalanced Chemical...
b. What is the molar mass of aluminum ammonium sulfate dodecahydrate? Use the periodic table in the back of the lab manual to answer this question. Formula: Molar mass of one mole of atoms x # of each species = total molar mass per element N: H: Al: S: O: Molar mass of NHAI(SO4)2·12H2O =
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