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Question 6 1 pts Suppose you are measuring the mass of a solid sample on a...
Sulfuric acid, H2SO4, is an important industrial chemical, typically synthesized in a multi-step process. What is...
Sulfuric acid, H2SO4, is an important industrial chemical, typically synthesized in a multi-step process. What is the percent yield if a batch of H2SO4 has a theoretical yield of 3.3 kg, and 2.7 kg are obtained at the end of the process?
1. Suppose that you decompose 20.07 g of Ni2O3NiX2OX3, which has a molar mass of 165.39...
1. Suppose that you decompose 20.07 g of Ni2O3NiX2OX3, which has a molar mass of 165.39 g/mol, into nickel and oxygen. 2Ni2O3(s)⟶4Ni(s)+3O2(g)2NiX2OX3(s)⟶4Ni(s)+3OX2(g) After completing the decomposition, you have 9.56 g of solid NiNi, which has a molar mass of 58.963 g/mol. What is the percent yield of your decomposition? 2. Suppose you are measuring the mass of a solid sample on a balance using a weigh boat. You record the data in a table. Mass of weigh boat 2.147 g...
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...
Question 1 1 pts Calculate the mass of potassium chloride, KCI, (in grams) formed when 7.00 g of chlorine gas is allowe...
Question 1 1 pts Calculate the mass of potassium chloride, KCI, (in grams) formed when 7.00 g of chlorine gas is allowed to react with 5.00 g of potassium. (write the chemical reaction first) 7.36 7.38 14.7 4.77 9.53 Question 2 1 pts Carbon dioxide is produced in the following reaction: 5 H2C204(aq) + 2 KMnO4 (aq) + 3 H2SO4 (aq) → 10 CO2(g) + 2 MnSO4 (aq) + K2SO4 (aq) + 8 H20 (1) What is the limiting reagent...
5. Imagine that you have discovered a new way of making synthetic rubies by combining solid...
5. Imagine that you have discovered a new way of making synthetic rubies by combining solid aluminum and oxygen gas according to the reaction below. 4 Al+3 O2 + 2 Al2O3 a. If have 10 moles of Al, and an unlimited amount of Oz, how many moles of Al2O3 could you make? b. If have 10 moles of O2, and an unlimited amount of Al, how many moles of Al2O3 could you make? c. If you were to combine 10.0...
1. Calculate the number of moles in each sample. a. 15.7 g CCl b. 1.8 x...
1. Calculate the number of moles in each sample. a. 15.7 g CCl b. 1.8 x 1021 formula units of NaC 2. Calculate the number of grams in each sample 1.23 mol magnesium bromide 7.310 x 1025 molecules of H202 a. b. 3. Calculate the mass percent of H in each of the following compounds. C2H2 C2HsCI a. b. 4. Calculate the empirical formula of each of the following Methy butyrate: 58.80 % C, 9.87 % H, 31.33 % O...
plz help im struggling 6. (15 pts) You have a sample that is a mixture of Na.Co, solid with NaCl solid. You dissolv...
plz help im struggling
6. (15 pts) You have a sample that is a mixture of Na.Co, solid with NaCl solid. You dissolve 4.000 grams of the mixture into enough water to make 50.00 mL of solution. You find that when you titrate your unknown solution, you require 42.19 mL of 1.000 M HCl for complete neutralization. What percentage (by mass) of the unknown mixture is Na CO,? Titration reaction: Na.Co. (aq) + 2 HCl(aq) → 2 NaCl(aq) + C048)...
for the first question, simple formula is referring to empircial formula 1. The compound thiophene contains...
for
the first question, simple formula is referring to empircial
formula
1. The compound thiophene contains carbon, hydrogen and sulfur. When a sample weighing 2.450 g is subjected to complete combustion analysis with oxygen, 5.126 g of carbon dioxide and 1.049 g of water are produced. What is the simplest formula of thiophene? 2. When zinc metal reacts with copper(II) nitrate, zinc(II) nitrate and copper metal are the products. How many grams of zinc metal are required to react completely...
Question 1 1 pts Fine wires of magnesium burn readily in oxygen to produce magnesium oxide....
Question 1 1 pts Fine wires of magnesium burn readily in oxygen to produce magnesium oxide. If 15.8 g of Mg are reacted with 9.69 g of Oz in a sealed reaction vessel, what is the mass of MgO produced? (Fill in only number, 3 sig figs) Question 2 1 pts Manganese(II) sulfate is produced in the following reaction: 5 H2C204(aq) + 2 KMnO4(aq) + 3 H2SO4 (aq) → 10C026 + 2 MnSO4(09) + K3504 (aq) + 8 H20 10...
5. Question 2 1 pts Suppose you are investigating the reaction: M(s) + 2 HCl(aq) →...
5.
Question 2 1 pts Suppose you are investigating the reaction: M(s) + 2 HCl(aq) → MCl2(aq) + H2(g). You weigh out a 0.202 gram piece of metal and combine it with 62.2 mL of 1.00 M HCl in a coffee-cup calorimeter. If the molar mass of the metal is 48.51 g/mol, and you measure that the reaction absorbed 111 J of heat, what is the enthalpy of this reaction in kJ per mole of limiting reactant? Enter your answer...
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...
Question 1 1 pts Calculate the mass of potassium chloride, KCI, (in grams) formed when 7.00 g of chlorine gas is allowed to react with 5.00 g of potassium. (write the chemical reaction first) 7.36 7.38 14.7 4.77 9.53 Question 2 1 pts Carbon dioxide is produced in the following reaction: 5 H2C204(aq) + 2 KMnO4 (aq) + 3 H2SO4 (aq) → 10 CO2(g) + 2 MnSO4 (aq) + K2SO4 (aq) + 8 H20 (1) What is the limiting reagent...
5. Imagine that you have discovered a new way of making synthetic rubies by combining solid aluminum and oxygen gas according to the reaction below. 4 Al+3 O2 + 2 Al2O3 a. If have 10 moles of Al, and an unlimited amount of Oz, how many moles of Al2O3 could you make? b. If have 10 moles of O2, and an unlimited amount of Al, how many moles of Al2O3 could you make? c. If you were to combine 10.0...
1. Calculate the number of moles in each sample. a. 15.7 g CCl b. 1.8 x 1021 formula units of NaC 2. Calculate the number of grams in each sample 1.23 mol magnesium bromide 7.310 x 1025 molecules of H202 a. b. 3. Calculate the mass percent of H in each of the following compounds. C2H2 C2HsCI a. b. 4. Calculate the empirical formula of each of the following Methy butyrate: 58.80 % C, 9.87 % H, 31.33 % O...
plz help im struggling
6. (15 pts) You have a sample that is a mixture of Na.Co, solid with NaCl solid. You dissolve 4.000 grams of the mixture into enough water to make 50.00 mL of solution. You find that when you titrate your unknown solution, you require 42.19 mL of 1.000 M HCl for complete neutralization. What percentage (by mass) of the unknown mixture is Na CO,? Titration reaction: Na.Co. (aq) + 2 HCl(aq) → 2 NaCl(aq) + C048)...
for
the first question, simple formula is referring to empircial
formula
1. The compound thiophene contains carbon, hydrogen and sulfur. When a sample weighing 2.450 g is subjected to complete combustion analysis with oxygen, 5.126 g of carbon dioxide and 1.049 g of water are produced. What is the simplest formula of thiophene? 2. When zinc metal reacts with copper(II) nitrate, zinc(II) nitrate and copper metal are the products. How many grams of zinc metal are required to react completely...
Question 1 1 pts Fine wires of magnesium burn readily in oxygen to produce magnesium oxide. If 15.8 g of Mg are reacted with 9.69 g of Oz in a sealed reaction vessel, what is the mass of MgO produced? (Fill in only number, 3 sig figs) Question 2 1 pts Manganese(II) sulfate is produced in the following reaction: 5 H2C204(aq) + 2 KMnO4(aq) + 3 H2SO4 (aq) → 10C026 + 2 MnSO4(09) + K3504 (aq) + 8 H20 10...
5.
Question 2 1 pts Suppose you are investigating the reaction: M(s) + 2 HCl(aq) → MCl2(aq) + H2(g). You weigh out a 0.202 gram piece of metal and combine it with 62.2 mL of 1.00 M HCl in a coffee-cup calorimeter. If the molar mass of the metal is 48.51 g/mol, and you measure that the reaction absorbed 111 J of heat, what is the enthalpy of this reaction in kJ per mole of limiting reactant? Enter your answer...
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