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Short/long answer questions. e short answer questions, show all your work and calculations, including significant s...
7. Balance the following reaction equation and then do the calculations. Show your work below. CH,OH...
7. Balance the following reaction equation and then do the calculations. Show your work below. CH,OH + 02 - H20 +CO2 a. How many grams of CO2 are produced from the combustion of 10.0 grams of CH,OH? b. How many grams of H20 are produced from the combustion of 20.0 g of CH,OH? c. How many grams of O2 are needed to react with 50.0 grams of CH,OH? d. How many grams of CH,OH are needed to produce 40.0 grams...
Calculations: SHOW WORK on separate paper. Use correct number of significant figures and report units with...
Calculations: SHOW WORK on separate paper. Use correct number of significant figures and report units with answers where required. 1. Find the number of moles in 25.0 grams of each of the following: Find the a. Ni b. C.H. c. Ca(OH)2 Find the mass of 0.750 moles of each of the following: Brz b. P.010 CuS 3. Find the number of particles in 35.0 grams of each of the following: a. Ag b. CF4 C. CHO Find the mass of...
Calculate the following. Show your work. Circle or place a box around your final answer. A...
Calculate the following. Show your work. Circle or place a box around your final answer. A frequently used method for preparing oxygen in the laboratory is by the thermal decomposition of Potassium Chlorate (KCIOs). Use the equation provided to answer the questions below. Given: Density of Oz - 1.428 g/L KCIO3(s) KCI (s) + O2 (g) 1. Balance the above equation (Quiz 10) 10 pts 2. What volume of O, can be made from 5.00 x 10 moles of KCIO,?...
TOANE Cole lavancue 1. Given the balanced equation: (Show all work, 4 pts each except e,...
TOANE Cole lavancue 1. Given the balanced equation: (Show all work, 4 pts each except e, 5 points) 3 Cl2 + 6 KOH 5 KCI + KCIO3 + 3H20 a. How many moles of Cl2 have to react to produce 1.5 x 10-3 moles of KCIO3? b. How many grams of KCl are produced from the complete reaction of 3.0 m KOH? c. How many moles of Cl2 have to react to produce 5.40 x 103 g of H20? d....
Please Show All Work SHOW ALL UNITS IN YOUR CALCULATIONS AND ANSWERS FOR CREDIT 1. The...
Please Show All Work
SHOW ALL UNITS IN YOUR CALCULATIONS AND ANSWERS FOR CREDIT 1. The mass of a single atom of an unknown element is 1.792x1022 grams. Answer the following questions about this unknown element. a) What is the mass of one atom of the unknown element in atomic mass units (amu)? Hint: 1 amu 1.661x1024 g (3 pts) Answer: b) How many atoms of this unknown element are there in 1.00 mole of this element? (1 pt) Answer:...
SHOW ALL WORK FOR FULL CREDI 1Given the following equation: potassium chlorate decomposes to form potassium...
SHOW ALL WORK FOR FULL CREDI 1Given the following equation: potassium chlorate decomposes to form potassium chloride and oxygen gas a. Write a balanced equation for the reaction. ρ How many moles of02 can be produced by letting(12.00 molesofKCIOs react? 0/ 2. Given the following equation: Fe + Ss → Fes, Write a balanced equation for the reaction. what mass of ronis needed to react with 16.0 grams of sulfur? a. c. How many grams of FeS are produced? Given...
answer questions 1,2,3 DQuestion 1 2 pts Pentacarbonyliron (Fe(CO)s) reacts with phosophorous triflouride (PF3) and...
answer questions 1,2,3
DQuestion 1 2 pts Pentacarbonyliron (Fe(CO)s) reacts with phosophorous triflouride (PF3) and hydrogen, releasing carbon monoxide according to the reaction below. If you combine 11.6 moles of Fe(CO)s. 81.6 moles of PF3, and 90 moles of H2, how many moles of Fe(CO)2(PF3)2(H2)2 are formed? Fe(CO)5 (s) + 2 PF3 (s) + 2 H2 (g)--Fe(CO)2(PF3)2(H2)2 (s) + 3 CO (g) uestion2 2 pts What is the percent yield of the following reaction if 23.4 grams of NH3 are...
Use the chemical equations below to answer the questions on stoichiometry. These calculations give theoretical yields,...
Use the chemical equations below to answer the questions on stoichiometry. These calculations give theoretical yields, or determine the amount of reactant needed to make a given amount of product. Don't forget to balance each equation, and show your work. For liquids, you may need to find density H-C C-H(g) O2 (g) H2O () 1. 4 CO2 (g) + + a. Given 0.72 moles of oxygen gas, how many moles of water can form? b. Starting with 55.2 grams of...
heet Pplete the following stoichiometry problems. Show ALL of your work to receive full credit. IOns and mole-to-mol...
heet Pplete the following stoichiometry problems. Show ALL of your work to receive full credit. IOns and mole-to-mole relationships 4Cr(s)+302(g)2Cr Os(s) How many moles of oxygen (02) would react with 0.35 moles of chromium (Cr)? a. b. Starting with 10.4g of O2, how many moles of Cr Os can be produced: How many grams of Cr metal would be needed to produce 38.2g of chromium (III) oxide? c. Sulfuric acid (H2SO4) is a component of acid rain which forms when...
please answer all, and type please Problems and questions (show all calculations, correct significant figures and...
please answer all, and type please
Problems and questions (show all calculations, correct significant figures and units) 1. Why is it important to test the crucible for cracks before heating it? 2. Write the correct balanced equation for the dehydration (removal of water) of the magnesium sulfate hydrate obtained in Procedure B of this experiment. 3. How many moles are in 70.0 grams of potassium hydroxide? 4. A compound is formed when 0.300 moles of barium combine with 0.600 moles...
7. Balance the following reaction equation and then do the calculations. Show your work below. CH,OH + 02 - H20 +CO2 a. How many grams of CO2 are produced from the combustion of 10.0 grams of CH,OH? b. How many grams of H20 are produced from the combustion of 20.0 g of CH,OH? c. How many grams of O2 are needed to react with 50.0 grams of CH,OH? d. How many grams of CH,OH are needed to produce 40.0 grams...
Calculations: SHOW WORK on separate paper. Use correct number of significant figures and report units with answers where required. 1. Find the number of moles in 25.0 grams of each of the following: Find the a. Ni b. C.H. c. Ca(OH)2 Find the mass of 0.750 moles of each of the following: Brz b. P.010 CuS 3. Find the number of particles in 35.0 grams of each of the following: a. Ag b. CF4 C. CHO Find the mass of...
Calculate the following. Show your work. Circle or place a box around your final answer. A frequently used method for preparing oxygen in the laboratory is by the thermal decomposition of Potassium Chlorate (KCIOs). Use the equation provided to answer the questions below. Given: Density of Oz - 1.428 g/L KCIO3(s) KCI (s) + O2 (g) 1. Balance the above equation (Quiz 10) 10 pts 2. What volume of O, can be made from 5.00 x 10 moles of KCIO,?...
TOANE Cole lavancue 1. Given the balanced equation: (Show all work, 4 pts each except e, 5 points) 3 Cl2 + 6 KOH 5 KCI + KCIO3 + 3H20 a. How many moles of Cl2 have to react to produce 1.5 x 10-3 moles of KCIO3? b. How many grams of KCl are produced from the complete reaction of 3.0 m KOH? c. How many moles of Cl2 have to react to produce 5.40 x 103 g of H20? d....
Please Show All Work
SHOW ALL UNITS IN YOUR CALCULATIONS AND ANSWERS FOR CREDIT 1. The mass of a single atom of an unknown element is 1.792x1022 grams. Answer the following questions about this unknown element. a) What is the mass of one atom of the unknown element in atomic mass units (amu)? Hint: 1 amu 1.661x1024 g (3 pts) Answer: b) How many atoms of this unknown element are there in 1.00 mole of this element? (1 pt) Answer:...
SHOW ALL WORK FOR FULL CREDI 1Given the following equation: potassium chlorate decomposes to form potassium chloride and oxygen gas a. Write a balanced equation for the reaction. ρ How many moles of02 can be produced by letting(12.00 molesofKCIOs react? 0/ 2. Given the following equation: Fe + Ss → Fes, Write a balanced equation for the reaction. what mass of ronis needed to react with 16.0 grams of sulfur? a. c. How many grams of FeS are produced? Given...
answer questions 1,2,3
DQuestion 1 2 pts Pentacarbonyliron (Fe(CO)s) reacts with phosophorous triflouride (PF3) and hydrogen, releasing carbon monoxide according to the reaction below. If you combine 11.6 moles of Fe(CO)s. 81.6 moles of PF3, and 90 moles of H2, how many moles of Fe(CO)2(PF3)2(H2)2 are formed? Fe(CO)5 (s) + 2 PF3 (s) + 2 H2 (g)--Fe(CO)2(PF3)2(H2)2 (s) + 3 CO (g) uestion2 2 pts What is the percent yield of the following reaction if 23.4 grams of NH3 are...
Use the chemical equations below to answer the questions on stoichiometry. These calculations give theoretical yields, or determine the amount of reactant needed to make a given amount of product. Don't forget to balance each equation, and show your work. For liquids, you may need to find density H-C C-H(g) O2 (g) H2O () 1. 4 CO2 (g) + + a. Given 0.72 moles of oxygen gas, how many moles of water can form? b. Starting with 55.2 grams of...
heet Pplete the following stoichiometry problems. Show ALL of your work to receive full credit. IOns and mole-to-mole relationships 4Cr(s)+302(g)2Cr Os(s) How many moles of oxygen (02) would react with 0.35 moles of chromium (Cr)? a. b. Starting with 10.4g of O2, how many moles of Cr Os can be produced: How many grams of Cr metal would be needed to produce 38.2g of chromium (III) oxide? c. Sulfuric acid (H2SO4) is a component of acid rain which forms when...
please answer all, and type please
Problems and questions (show all calculations, correct significant figures and units) 1. Why is it important to test the crucible for cracks before heating it? 2. Write the correct balanced equation for the dehydration (removal of water) of the magnesium sulfate hydrate obtained in Procedure B of this experiment. 3. How many moles are in 70.0 grams of potassium hydroxide? 4. A compound is formed when 0.300 moles of barium combine with 0.600 moles...
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