Show your work, including units, for the following series of calculations: a. How many moles of...
Show your work, including units, for the following series of calculations: a. How many moles of Al are in 1.25 g of Al? b. For the synthesis of alum you will be performing in lab, what is the molar ratio of Al to alum? In other words, how many moles of alum are produced from 1 mole of Al? c. Starting with 1.25 g of Al, what is the theoretical amount of alum (in g) that can be produced if the reaction goes to completion with 100% yield? d. Calculate the percent yield of alum if a student starts with 1.25 g of Al and produces 14.96 g of alum.
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Show your work, including units, for the following series of
calculations: a. How many moles of...
Calculate the percent yield of your product assuming you started with 0.545 grams of Al metal...
Calculate the percent yield of your product assuming you started with 0.545 grams of Al metal and collect 5.25 grams of alum product? 1) Calculate the number of moles of Al used in your reaction. 2) Calculate the molar mass of alum, potassium aluminum sulfate dodecahydrate (do not forget to include the associated water in you molar mass calculation). 3) This experiment has been set up such that Al is the limiting reagent,(determines the maximum amount of product that could...
can I please get help solving number 4 Weignto comes9423 weight of beaker & alum 972.2313...
can I please get help solving number 4
Weignto comes9423 weight of beaker & alum 972.2313 Caleulations Dare 3-30-20 section - 2. Weight of alum crystals collect 2 ALO2 og beint of bener 164309 1.789g weight of beakertal 0 865. alig 3. Equations representing the synthesis Write below equations 1, 2, and 3 given in the text (+2KOH lag) HOH₂O 2kg + 2Al(OH)4 + 3H2198 32nrag)+ ZAILOH) ülaa)+4H250ulag) 2Kt Loa) +241 lagt 3 tlac) +A1312029100) #210-> AS042 4. Mole relationships...
D. Complete the following stoichiometry problems. Show ALL of your work to receive full credit. Equations...
D. Complete the following stoichiometry problems. Show ALL of your work to receive full credit. Equations and mole-to-mole relationships 21. For the following reaction: 4Cr(s) + 302(g) → 2Cr2O3(s) a. How many moles of oxygen (O2) would react with 0.35 moles of chromium (Cr)? b. Starting with 10.4g of Oz, how many moles of Cr203 can be produced: c. How many grams of Cr metal would be needed to produce 38.2g of chromium (III) oxide? 22. Sulfuric acid (H2SO4) is...
help with all questions(: 1) Describe what the crystals look like? 2) If your percent yield...
help with all questions(:
1) Describe what the crystals look like? 2) If your percent yield is greater that 100%, give one plausible error you may have made. 3) Calculate the limiting reactant and theoretical yield of Cu for the following reaction: First balance the reaction CuSO4 (aq) + Al(s) → Al2(SO4)(aq) + Cu (S) 3.35 g 0.321 g 4) If the actual yield for the reaction in question (3) is 1.06 g, what is the percent yield for the...
Data Table Aluminum cup leppty). 2.5 Aluminum cup + approx. 2g alum, & Show you calculations...
Data Table Aluminum cup leppty). 2.5 Aluminum cup + approx. 2g alum, & Show you calculations in this column 4.5 3.6| 3.6| Aluminum cup + alum after 1* heating, 8 20 heating, E Mass of released water, g Mass of anhydrous alum, & Molar mass of water, g/mol Molar mass of ahnydrous alum, g/mol Number of moles of water released Number of moles of anhydrous alum Experimental mole ratio water to alum, x Literature value of x Percent error Past...
82 CALCULATIONS How many moles of magnesium used? (Use data A) ue of E) qar calaed...
82 CALCULATIONS How many moles of magnesium used? (Use data A) ue of E) qar calaed F) How many moles of Ha is expected? (Use balanced equation) G) How many mL of H2 is expected? This is the theoretical volume (Assume Molar Volume of 22.4L) H) How many ml of Ha is collected? This is the expertmental volume (See data c) I) What is your percentage yield? (Use data G and H) College of San Mateo Chemistry Dept
2. Complete the following calculations: a. How many atoms are in 0.932 moles of copper? b....
2. Complete the following calculations: a. How many atoms are in 0.932 moles of copper? b. How many moles of water are in 9.028 x 1022 water molecules? C. What is the molar mass of calcium carbonate? d. How many grams of water are in a 1.02 mole sample of water? e. How many moles of methane are there in 278 g of methane?
DATE 1. How many moles of Na are there in 47.3 g of Na? 2. Calculate...
DATE 1. How many moles of Na are there in 47.3 g of Na? 2. Calculate the number of grams of sulfur in 112.4 moles of sulfur. 3. Calculate number of atoms in 4.6 g of calcium. 4. How many H atoms are in 272.5 g of methanol, CH0? 5. For the given reaction N, (g) +3H,(g)->2NH(g) a. How many moles of NH, are formed by the complete reaction of 0.154 moles of H? b. How many grams of NH,...
Pre-Lab Assignment, consider the ing no water) alum. Slab, you will perform the synthesis of hydrated...
Pre-Lab Assignment, consider the ing no water) alum. Slab, you will perform the synthesis of hydrated alum [KAl(SO): 12 Assignment, consider the net reaction for the synthesis of anhydrous sis of hydrated alum [KAISOJ, 12H,0). For this 1. Balance the following equation: AI(S) + 4H,SO,(aq) +_ KOH(aq) - KAI(SO).(s) + _ 2. Calculate the molar mass of anhydrous'alum [KAl(SO).. H,001) +3H:18) 3258:192 3. If the sulfuric acid (H,SO,) and potassium hydroxide (KOH) are in excess, how many grams of anhydrous...
6.10 Balance the chemical equation: 2 AI +3 CI, 2 AICI, a. How many moles of...
6.10 Balance the chemical equation: 2 AI +3 CI, 2 AICI, a. How many moles of chlorine gas will react with 0.160 mole of aluminum? b. The theoretical yield (Sec. 6.9) for a chemical reaction is the maximum amount of a product that can be obtained from given amounts of reactants. Calculate the theoretical yield, in grams, of aluminum chloride that could be produced from 5.27 moles of aluminum. (Assume that enough Cl, is present.) c. What is the theoretical...
can I please get help solving number 4
Weignto comes9423 weight of beaker & alum 972.2313 Caleulations Dare 3-30-20 section - 2. Weight of alum crystals collect 2 ALO2 og beint of bener 164309 1.789g weight of beakertal 0 865. alig 3. Equations representing the synthesis Write below equations 1, 2, and 3 given in the text (+2KOH lag) HOH₂O 2kg + 2Al(OH)4 + 3H2198 32nrag)+ ZAILOH) ülaa)+4H250ulag) 2Kt Loa) +241 lagt 3 tlac) +A1312029100) #210-> AS042 4. Mole relationships...
D. Complete the following stoichiometry problems. Show ALL of your work to receive full credit. Equations and mole-to-mole relationships 21. For the following reaction: 4Cr(s) + 302(g) → 2Cr2O3(s) a. How many moles of oxygen (O2) would react with 0.35 moles of chromium (Cr)? b. Starting with 10.4g of Oz, how many moles of Cr203 can be produced: c. How many grams of Cr metal would be needed to produce 38.2g of chromium (III) oxide? 22. Sulfuric acid (H2SO4) is...
help with all questions(:
1) Describe what the crystals look like? 2) If your percent yield is greater that 100%, give one plausible error you may have made. 3) Calculate the limiting reactant and theoretical yield of Cu for the following reaction: First balance the reaction CuSO4 (aq) + Al(s) → Al2(SO4)(aq) + Cu (S) 3.35 g 0.321 g 4) If the actual yield for the reaction in question (3) is 1.06 g, what is the percent yield for the...
Data Table Aluminum cup leppty). 2.5 Aluminum cup + approx. 2g alum, & Show you calculations in this column 4.5 3.6| 3.6| Aluminum cup + alum after 1* heating, 8 20 heating, E Mass of released water, g Mass of anhydrous alum, & Molar mass of water, g/mol Molar mass of ahnydrous alum, g/mol Number of moles of water released Number of moles of anhydrous alum Experimental mole ratio water to alum, x Literature value of x Percent error Past...
82 CALCULATIONS How many moles of magnesium used? (Use data A) ue of E) qar calaed F) How many moles of Ha is expected? (Use balanced equation) G) How many mL of H2 is expected? This is the theoretical volume (Assume Molar Volume of 22.4L) H) How many ml of Ha is collected? This is the expertmental volume (See data c) I) What is your percentage yield? (Use data G and H) College of San Mateo Chemistry Dept
2. Complete the following calculations: a. How many atoms are in 0.932 moles of copper? b. How many moles of water are in 9.028 x 1022 water molecules? C. What is the molar mass of calcium carbonate? d. How many grams of water are in a 1.02 mole sample of water? e. How many moles of methane are there in 278 g of methane?
DATE 1. How many moles of Na are there in 47.3 g of Na? 2. Calculate the number of grams of sulfur in 112.4 moles of sulfur. 3. Calculate number of atoms in 4.6 g of calcium. 4. How many H atoms are in 272.5 g of methanol, CH0? 5. For the given reaction N, (g) +3H,(g)->2NH(g) a. How many moles of NH, are formed by the complete reaction of 0.154 moles of H? b. How many grams of NH,...
Pre-Lab Assignment, consider the ing no water) alum. Slab, you will perform the synthesis of hydrated alum [KAl(SO): 12 Assignment, consider the net reaction for the synthesis of anhydrous sis of hydrated alum [KAISOJ, 12H,0). For this 1. Balance the following equation: AI(S) + 4H,SO,(aq) +_ KOH(aq) - KAI(SO).(s) + _ 2. Calculate the molar mass of anhydrous'alum [KAl(SO).. H,001) +3H:18) 3258:192 3. If the sulfuric acid (H,SO,) and potassium hydroxide (KOH) are in excess, how many grams of anhydrous...
6.10 Balance the chemical equation: 2 AI +3 CI, 2 AICI, a. How many moles of chlorine gas will react with 0.160 mole of aluminum? b. The theoretical yield (Sec. 6.9) for a chemical reaction is the maximum amount of a product that can be obtained from given amounts of reactants. Calculate the theoretical yield, in grams, of aluminum chloride that could be produced from 5.27 moles of aluminum. (Assume that enough Cl, is present.) c. What is the theoretical...
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