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Not yet graded/5 pts Question 13 Free Response For questions A and B. A hydrocarbon containing...
Free Response For questions A and B. A hydrocarbon containing 85.7% of carbon and 14.3% of...
Free Response For questions A and B. A hydrocarbon containing 85.7% of carbon and 14.3% of hydrogen was burned in a rigid, enclosed box with the pressure of 715 mmHg at 95°C and an oxygen volume of 4490 mL. At the end of the reaction, the temperature cooled down to 0°C. Molar mass of the hydrocarbon is 70.0 g/mol. A. What is the amount of O, reacted in grams? B. What is the yield of H20, in grams, after the...
Free Response For questions A and B. A hydrocarbon containing 83.9% of carbon and 16.1% of...
Free Response For questions A and B. A hydrocarbon containing 83.9% of carbon and 16.1% of hydrogen was burned in a rigid, enclosed box with the pressure of 715 mmHg at 55°C and an oxygen volume of 5090 ml. At the end of the reaction, the temperature cooled down to 0°C. Molar mass of the hydrocon is 100.2 g/mol. A. What is the amount of O2 reacted in gram. B. What is the yield of H20, in grams, after the...
2.51 correct Question 12 0/2 pts How many butane molecules are in 32.4 liters of C4H10...
2.51 correct Question 12 0/2 pts How many butane molecules are in 32.4 liters of C4H10 gas at STP? 2.70X1023 6.45X102 2.46X1024 13710 Question 13 Not yet graded/5 pts Free Response For questions A and B. A hydrocarbon containing 85.7% of carbon and 14.3% of hydrogen was burned in a tigid, enclosed box with the pressure
Not yet answered Graded out of 1.00 Flag question Question text In the process of photosynthesis,...
Not yet answered Graded out of 1.00 Flag question Question text In the process of photosynthesis, water and carbon dioxide are produced. Select one: True False Question 2 Not yet answered Graded out of 1.00 Flag question Question text In the carbon cycle, combustion produces atmospheric oxygen. Select one: True False Question 3 Not yet answered Graded out of 1.00 Flag question Question text In a balanced chemical equation, the number of each type of atom in the reactants must...
Naphthalene, a hydrocarbon, has an approximate molar mass of 128 g/mole. If the combustion of 64...
Naphthalene, a hydrocarbon, has an approximate molar mass of 128 g/mole. If the combustion of 64 produces 0.3599 g H20 and 2.1977 g CO2, what is the molecular formula of this compound? 3. A mass of 0.4113 g of an unknown acid, HA, is titrated with NaOH. If the acid reacts with 28.10 mL of 0.1055 M NaOH(aq), what is the molar mass of the acid? 4. The amount of calcium in a 15.0-g sample was determined by converting the...
question 4-5 should be indicated on the scantron. Answers in dicated on Exam will not be graded. 4.Use pencil for ma...
question 4-5
should be indicated on the scantron. Answers in dicated on Exam will not be graded. 4.Use pencil for marking the answers on the scantron. 5. Apply significant figures as appropriate MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. AL 1) How many chloride ions are there in 7.50 mol of aluminum chloride? A1.35 1025 chloride lons 1) AIcl3 B) 3.00 chloride ions D) 4.52 1024 chloride lons C) 22.5 chloride lons...
WILL Submit All Questions Completed 5 out of 11. Save Answer KY mplete < Question 6 of 11 > Combining 0....
WILL Submit All Questions Completed 5 out of 11. Save Answer KY mplete < Question 6 of 11 > Combining 0.318 mol Fe,O, with excess carbon produced 17.6 g Fe. mplete Fe, O,+3C-2 Fe +3 CO mplete What is the actual yield of iron in moles? mplete mplete actual yield: mol What is the theoretical yield of iron in moles? theoretical yield: mol What is the percent yield? % percent yield: privacy policy terms of use help contact us about...
(6 pts.) 1. The air pressure in the inner tube of a tire on a typical...
(6 pts.) 1. The air pressure in the inner tube of a tire on a typical racing bike is held at a pressure of 115 psi (pounds! per square inch). Convert this pressure to atm and mm Hg. (3 pts. each) The atmospheric pressure is 0.978 atm. Determine the pressure of the enclosed gas in each of the cases depicted below. Gas Gas (6 pts.) 3. A 5.90 L bottle contains 1070 g of oxygen at 25.0°C. Calculate the pressure...
Free Response For questions A and B. A hydrocarbon containing 85.7% of carbon and 14.3% of hydrogen was burned in a rigid, enclosed box with the pressure of 715 mmHg at 95°C and an oxygen volume of 4490 mL. At the end of the reaction, the temperature cooled down to 0°C. Molar mass of the hydrocarbon is 70.0 g/mol. A. What is the amount of O, reacted in grams? B. What is the yield of H20, in grams, after the...
Free Response For questions A and B. A hydrocarbon containing 83.9% of carbon and 16.1% of hydrogen was burned in a rigid, enclosed box with the pressure of 715 mmHg at 55°C and an oxygen volume of 5090 ml. At the end of the reaction, the temperature cooled down to 0°C. Molar mass of the hydrocon is 100.2 g/mol. A. What is the amount of O2 reacted in gram. B. What is the yield of H20, in grams, after the...
2.51 correct Question 12 0/2 pts How many butane molecules are in 32.4 liters of C4H10 gas at STP? 2.70X1023 6.45X102 2.46X1024 13710 Question 13 Not yet graded/5 pts Free Response For questions A and B. A hydrocarbon containing 85.7% of carbon and 14.3% of hydrogen was burned in a tigid, enclosed box with the pressure
Naphthalene, a hydrocarbon, has an approximate molar mass of 128 g/mole. If the combustion of 64 produces 0.3599 g H20 and 2.1977 g CO2, what is the molecular formula of this compound? 3. A mass of 0.4113 g of an unknown acid, HA, is titrated with NaOH. If the acid reacts with 28.10 mL of 0.1055 M NaOH(aq), what is the molar mass of the acid? 4. The amount of calcium in a 15.0-g sample was determined by converting the...
question 4-5
should be indicated on the scantron. Answers in dicated on Exam will not be graded. 4.Use pencil for marking the answers on the scantron. 5. Apply significant figures as appropriate MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. AL 1) How many chloride ions are there in 7.50 mol of aluminum chloride? A1.35 1025 chloride lons 1) AIcl3 B) 3.00 chloride ions D) 4.52 1024 chloride lons C) 22.5 chloride lons...
WILL Submit All Questions Completed 5 out of 11. Save Answer KY mplete < Question 6 of 11 > Combining 0.318 mol Fe,O, with excess carbon produced 17.6 g Fe. mplete Fe, O,+3C-2 Fe +3 CO mplete What is the actual yield of iron in moles? mplete mplete actual yield: mol What is the theoretical yield of iron in moles? theoretical yield: mol What is the percent yield? % percent yield: privacy policy terms of use help contact us about...
(6 pts.) 1. The air pressure in the inner tube of a tire on a typical racing bike is held at a pressure of 115 psi (pounds! per square inch). Convert this pressure to atm and mm Hg. (3 pts. each) The atmospheric pressure is 0.978 atm. Determine the pressure of the enclosed gas in each of the cases depicted below. Gas Gas (6 pts.) 3. A 5.90 L bottle contains 1070 g of oxygen at 25.0°C. Calculate the pressure...
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