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In the decomposition of KClO3, 4.0 grams of KClO3 are reacted and 1.82 gram of KCl...
A mixture contains KClO3 and KCl. When the mixture is heated, only the KClO3 decomposes via...
A mixture contains KClO3 and KCl. When the mixture is heated, only the KClO3 decomposes via the following reaction: 2KClO3 (s) → 3O2 (g) + 2KCl (s) In an experiment to determine the percent KClO3 in a KClO3/KCl mixture, the mixture was heated in a crucible several times in order to bring it to constant mass. The following experimental data was obtained. Before Heating Mass empty crucible + lid = 21.77 g Mass crucible + lid+ KClO3/KCl mixture = 26.16...
A mixture contains KClO3 and KCl. When the mixture is heated, only the KClO3 decomposes via...
A mixture contains KClO3 and KCl. When the mixture is heated, only the KClO3 decomposes via the following reaction: 2KClO3 (s) → 3O2 (g) + 2KCl (s) In an experiment to determine the percent KClO3 in a KClO3/KCl mixture, the mixture was heated in a crucible several times in order to bring it to constant mass. The following experimental data was obtained. Before Heating Mass empty crucible + lid = 21.84 g Mass crucible + lid+ KClO3/KCl mixture = 26.19...
Question 4 1 pts Given the decomposition reaction of KClO3(s), 2 KCIO3(s) 2 KCl(s) + 3...
Question 4 1 pts Given the decomposition reaction of KClO3(s), 2 KCIO3(s) 2 KCl(s) + 3 O2(8) If 19.6 L of oxygen gas (O2) are produced at 198 °C and 760 torr, answer all three parts below. 1) The number of moles of O2(g) produced → [Select ] 1.21 mol 385 mol 2) The number of moles of KCIO3(s) require 0.507 mol 917 mol problem is Select] 2(g) as stated in the 2) The grams of KCIO3(s) required to produced...
Problems 1 through 5 below refer to the following graph. A 200 gram ice sample is...
Problems 1 through 5 below refer to the following graph. A 200 gram ice sample is placed in a closed (and otherwise evacuated) beaker on top of a bunsen burner. The initial temperature of the ice is -20 degrees Celcius. It is heated until all of the ice melts and turns into water, the water is heated until it boils, and it continues to be heated until all of the water turns into steam. The temperature of the water (in...
CHEM 1033, Sample Exam II (Homework) Chapters 3,4,6 Name: 1. What volume of 0.132 M KOH...
CHEM 1033, Sample Exam II (Homework) Chapters 3,4,6 Name: 1. What volume of 0.132 M KOH solution would react completely with 25.8 ml. of 0.198 M HCl according to the following cquation? HCI+KOH --->KCI+H.O a) 86.4 ml. b) 25.7 ml. c) 38.7 ml d) 17.2 ml. 2. Which one of the following is a strong soluble base? a) Ni(OH): b) Mg(OH): c) RLOH d) ChOH) c) Fe(OH) 3. Which one of the following is a strong acid? a) HF b)...
VO V205 1. Vanadium and oxygen react to make vanadium (V) oxide. How many grams of vanadium and - oxygen are needed...
VO V205 1. Vanadium and oxygen react to make vanadium (V) oxide. How many grams of vanadium and - oxygen are needed to make 85 g of vanadium (V) oxide? Ans. 48 g of vanadium and 37 g of oxygen. 2( 50, 942) +5lis.499 ) 85g U2O5 x 1 mol v2 og 181.879 gvos k 181.87ague5 Imol v₂O5 2. Iron(III) oxide can be converted to iron metal and water by heating it with hydrogen gas. If 100 g of iron(III)...
Given the data below, how many grams of NaCl would you expect to be formed in...
Given the data below, how many grams of NaCl would you expect to be formed in the reaction of excess HCl with the Na,CO3? The molar mass of sodium carbonate is 105.989 g/mol and the molar mass of sodium chloride is 58.443 g/mol. 83.000 mass of empty beaker (g) mass of beaker plus Na2CO3 (9) mass of Na2CO3 (9) 85.250 2.250 Select one: O a. 2.481 g O b. 3.308 g O c.4.962 g O d. 1.241 g You added...
molar 7. How many grams of CO 28.01 /mol) must be bumed to produce 225 kJ...
molar 7. How many grams of CO 28.01 /mol) must be bumed to produce 225 kJ of heat urma 2006 +020 200260 AH = -566 kJ c) 2238 ite a) 0.398 8 b) 0.795 g c) 2.52 g d) 11.1 g 3. Calculate the mass of excess reactant remaining after 4.50 mol of LHCO (67.96 R/mol) and 8.50 mol of H2504 (98.08 g/mol) reacted according to the equation shown below. 2LHCO3 + H2SO4 - Li2SO4 + 2H20 + 2002 e)...
What is the coefficient of H.So, when the following equation is properly balanced with the smallest set of w...
What is the coefficient of H.So, when the following equation is properly balanced with the smallest set of whole numbers? __Cas(PO4h + H2SO4 - Caso + HPO. A) 3 B) 8 C) 10 D) 11 2) What is the coefficient of H20 when the following equation is properly balanced with smallest set of whole numbers? ALC + H2O - AM(OH), + CHE A) 3 B) 4 C) 6 D) 12 E) 24 3) of the reactions below, which one is...
this is a lab of Percentage of Oxygen in Potassium Chlorate Percentage of Oxygen in Potassium...
this is a lab of Percentage of Oxygen in Potassium
Chlorate
Percentage of Oxygen in Potassium Chlorate Purpose of the lab Te esperimentar e te m o rgen in een constante decoration of poche Introduction The thermal decomposition of potassium chore can be described by the following 2KCIO 2 Cl +30 Ent epeal tehnic p e cale from the KCIO We poschodecomposes simply by heating the reaction is very Actitud is a m a ture accent the reaction, we not...
Question 4 1 pts Given the decomposition reaction of KClO3(s), 2 KCIO3(s) 2 KCl(s) + 3 O2(8) If 19.6 L of oxygen gas (O2) are produced at 198 °C and 760 torr, answer all three parts below. 1) The number of moles of O2(g) produced → [Select ] 1.21 mol 385 mol 2) The number of moles of KCIO3(s) require 0.507 mol 917 mol problem is Select] 2(g) as stated in the 2) The grams of KCIO3(s) required to produced...
Problems 1 through 5 below refer to the following graph. A 200 gram ice sample is placed in a closed (and otherwise evacuated) beaker on top of a bunsen burner. The initial temperature of the ice is -20 degrees Celcius. It is heated until all of the ice melts and turns into water, the water is heated until it boils, and it continues to be heated until all of the water turns into steam. The temperature of the water (in...
CHEM 1033, Sample Exam II (Homework) Chapters 3,4,6 Name: 1. What volume of 0.132 M KOH solution would react completely with 25.8 ml. of 0.198 M HCl according to the following cquation? HCI+KOH --->KCI+H.O a) 86.4 ml. b) 25.7 ml. c) 38.7 ml d) 17.2 ml. 2. Which one of the following is a strong soluble base? a) Ni(OH): b) Mg(OH): c) RLOH d) ChOH) c) Fe(OH) 3. Which one of the following is a strong acid? a) HF b)...
VO V205 1. Vanadium and oxygen react to make vanadium (V) oxide. How many grams of vanadium and - oxygen are needed to make 85 g of vanadium (V) oxide? Ans. 48 g of vanadium and 37 g of oxygen. 2( 50, 942) +5lis.499 ) 85g U2O5 x 1 mol v2 og 181.879 gvos k 181.87ague5 Imol v₂O5 2. Iron(III) oxide can be converted to iron metal and water by heating it with hydrogen gas. If 100 g of iron(III)...
Given the data below, how many grams of NaCl would you expect to be formed in the reaction of excess HCl with the Na,CO3? The molar mass of sodium carbonate is 105.989 g/mol and the molar mass of sodium chloride is 58.443 g/mol. 83.000 mass of empty beaker (g) mass of beaker plus Na2CO3 (9) mass of Na2CO3 (9) 85.250 2.250 Select one: O a. 2.481 g O b. 3.308 g O c.4.962 g O d. 1.241 g You added...
molar 7. How many grams of CO 28.01 /mol) must be bumed to produce 225 kJ of heat urma 2006 +020 200260 AH = -566 kJ c) 2238 ite a) 0.398 8 b) 0.795 g c) 2.52 g d) 11.1 g 3. Calculate the mass of excess reactant remaining after 4.50 mol of LHCO (67.96 R/mol) and 8.50 mol of H2504 (98.08 g/mol) reacted according to the equation shown below. 2LHCO3 + H2SO4 - Li2SO4 + 2H20 + 2002 e)...
What is the coefficient of H.So, when the following equation is properly balanced with the smallest set of whole numbers? __Cas(PO4h + H2SO4 - Caso + HPO. A) 3 B) 8 C) 10 D) 11 2) What is the coefficient of H20 when the following equation is properly balanced with smallest set of whole numbers? ALC + H2O - AM(OH), + CHE A) 3 B) 4 C) 6 D) 12 E) 24 3) of the reactions below, which one is...
this is a lab of Percentage of Oxygen in Potassium
Chlorate
Percentage of Oxygen in Potassium Chlorate Purpose of the lab Te esperimentar e te m o rgen in een constante decoration of poche Introduction The thermal decomposition of potassium chore can be described by the following 2KCIO 2 Cl +30 Ent epeal tehnic p e cale from the KCIO We poschodecomposes simply by heating the reaction is very Actitud is a m a ture accent the reaction, we not...
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