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correct sig fig number please!
Question 49 (1 point) A student runs the reaction below starting...
9 1 point A sample of 8.18 g NH3 on oxidation produces 4.78 g of H20....
9 1 point A sample of 8.18 g NH3 on oxidation produces 4.78 g of H20. Calculate the percent yield. Reaction: 4NH3 +502 4NO+6H20 Use the following molar masses in your calculation: NH3 = 17.03 g/mol; H20 = 18.02 g/mol Do not type the percent symbol with your answer! Type your answer... I
6 1 point A sample of 7.16 g NH3 on oxidation produces 2.84 g of H20....
6 1 point A sample of 7.16 g NH3 on oxidation produces 2.84 g of H20. Calculate the percent yield. Reaction: 4NH3 +502-4NO + 6H20 Use the following molar masses in your calculation: NH3 = 17.03 g/mol; H2O = 18.02 g/mol Do not type the percent symbol with your answer! Type your answer... Previous
5. Balance the following reaction that occurs in base, using the half-reaction method. NO(g) + MnO4-1(aq)...
5. Balance the following reaction that occurs in base, using the half-reaction method. NO(g) + MnO4-1(aq) ---> NO3-1(aq) + MnO2(s) When this reaction is balanced, there will be (A) OH-1(aq) and (B) H2O(l) in the final balanced equation. (Enter numbers without the plus sign.) 6. 0.122 grams of an unknown triprotic acid was neutralized with 37.2 mL of a 0.125 M NaOH solution. What is the Molar Mass of the unknown acid? Report the answer to three sig figs and...
please help ? MST SHOW ALL CALCULATIONSs. Please be neat. Use correct significant figures. 1. A...
please help ?
MST SHOW ALL CALCULATIONSs. Please be neat. Use correct significant figures. 1. A student masses an empty flask, aluminum foil (witha small pinhole), and copper wire and finds the mass to be 54.8680 g. She then adds about 5.0 mL of an unknown liquid and heats the flask in a hot waterbath to 95.0 °C. After all the liquid is vaporized, she removes the flask from the bath and masses it after it has cooled. The mass...
please clearly explain how to do this using the below information with thr correct sig figs...
please clearly explain how to do this using the below
information with thr correct sig figs
Ba Convert 0.1290 mol of sodium bromide to mmol of sodium bromide b. Convert 0.1290 mol of sodium bromide to grams. nwart 225.0 mmol of sulfuric acid to ml of sulfuric acid. (hint-you will use the formula mass AND density in the conversion.) 5. a. Determine the theoretical yield (IN GRAMS) for 1-bromobutane if you start with 109 mmol of butanol and excess acid...
Please answer with correct answer, 3 sig figs, correct units. Thank you! 슬 loncapa.science.oit.ca Question 1...
Please answer with correct answer, 3 sig figs, correct units.
Thank you!
슬 loncapa.science.oit.ca Question 1 Charge Q Point on axis What is the electric potential at the point on the axis which is at x = 3.80 m. The length of the rod is L = 2.00 m and the charge on the rod is Q#2.50 nc. Question 2
When 12.6-grams of an unknown compound is placed in 0.116-kg of benzene, the freezing point is...
When 12.6-grams of an unknown compound is placed in 0.116-kg of benzene, the freezing point is changed by 2.34°C. The value of Kf= 4.90°C/m for benzene. Determine the molar mass of the unknown compound. Answer to 1 decimal place and include your units. Answer: Determine the molality of a solution when 32.3 grams of ethanol, C2H5OH (Molar mass = 46.08 g/mol) is dissolved in 0.947 kg of water. Answer to 2 decimal places. Answer: Find the freezing point of a...
c. How many moles of oxygen gas were produced? Round your answer to 4 sig figs....
c. How many moles of oxygen gas were produced? Round your answer to 4 sig figs. Question le Answer d. Calculate the experimental value for the gas constant R with units of L'atm/mol K. Round your answer to 4 sig figs. . 23L PV = nRT Question 1d Answer olzan o (2 mol 10.08. 2016 (29ct 2. While decomposing a KCIO, mixture, the experiment apparatus used to collect the oxygen gas sprang a leak. Would this error cause the following...
Question 3 1 pts Gaseous ammonia reacts with oxygen to produce nitrogen and water vapor according...
Question 3 1 pts Gaseous ammonia reacts with oxygen to produce nitrogen and water vapor according to the following thermochemicl equation: 4 NH3(g) + 3029 +2 N2(g) + 6 H20 (g); AH = -1232 kJ How much heat (kJ) is produced when 17.9 g of ammonia are reacted in excess oxygen? (3 sig figs, fill in the number ONLY!) Question 4 0.5 pts Which of the following are intensive properties? Note that there may be more than one correct choice....
Question 11 You use an analytical balance to measure the mass of a weigh boat and...
Question 11 You use an analytical balance to measure the mass of a weigh boat and record a mass of 1.5624 g. You then add some NaHCO, to Not changed since the weigh boat and give the welgh boat to your lab partner to measure. Your lab partner mistakenly forgets to record all of the digits on the balance and records a mass of 1.92 g What is the minimum number of grams of acetic acid that you would need...
9 1 point A sample of 8.18 g NH3 on oxidation produces 4.78 g of H20. Calculate the percent yield. Reaction: 4NH3 +502 4NO+6H20 Use the following molar masses in your calculation: NH3 = 17.03 g/mol; H20 = 18.02 g/mol Do not type the percent symbol with your answer! Type your answer... I
6 1 point A sample of 7.16 g NH3 on oxidation produces 2.84 g of H20. Calculate the percent yield. Reaction: 4NH3 +502-4NO + 6H20 Use the following molar masses in your calculation: NH3 = 17.03 g/mol; H2O = 18.02 g/mol Do not type the percent symbol with your answer! Type your answer... Previous
please help ?
MST SHOW ALL CALCULATIONSs. Please be neat. Use correct significant figures. 1. A student masses an empty flask, aluminum foil (witha small pinhole), and copper wire and finds the mass to be 54.8680 g. She then adds about 5.0 mL of an unknown liquid and heats the flask in a hot waterbath to 95.0 °C. After all the liquid is vaporized, she removes the flask from the bath and masses it after it has cooled. The mass...
please clearly explain how to do this using the below
information with thr correct sig figs
Ba Convert 0.1290 mol of sodium bromide to mmol of sodium bromide b. Convert 0.1290 mol of sodium bromide to grams. nwart 225.0 mmol of sulfuric acid to ml of sulfuric acid. (hint-you will use the formula mass AND density in the conversion.) 5. a. Determine the theoretical yield (IN GRAMS) for 1-bromobutane if you start with 109 mmol of butanol and excess acid...
Please answer with correct answer, 3 sig figs, correct units.
Thank you!
슬 loncapa.science.oit.ca Question 1 Charge Q Point on axis What is the electric potential at the point on the axis which is at x = 3.80 m. The length of the rod is L = 2.00 m and the charge on the rod is Q#2.50 nc. Question 2
When 12.6-grams of an unknown compound is placed in 0.116-kg of benzene, the freezing point is changed by 2.34°C. The value of Kf= 4.90°C/m for benzene. Determine the molar mass of the unknown compound. Answer to 1 decimal place and include your units. Answer: Determine the molality of a solution when 32.3 grams of ethanol, C2H5OH (Molar mass = 46.08 g/mol) is dissolved in 0.947 kg of water. Answer to 2 decimal places. Answer: Find the freezing point of a...
c. How many moles of oxygen gas were produced? Round your answer to 4 sig figs. Question le Answer d. Calculate the experimental value for the gas constant R with units of L'atm/mol K. Round your answer to 4 sig figs. . 23L PV = nRT Question 1d Answer olzan o (2 mol 10.08. 2016 (29ct 2. While decomposing a KCIO, mixture, the experiment apparatus used to collect the oxygen gas sprang a leak. Would this error cause the following...
Question 3 1 pts Gaseous ammonia reacts with oxygen to produce nitrogen and water vapor according to the following thermochemicl equation: 4 NH3(g) + 3029 +2 N2(g) + 6 H20 (g); AH = -1232 kJ How much heat (kJ) is produced when 17.9 g of ammonia are reacted in excess oxygen? (3 sig figs, fill in the number ONLY!) Question 4 0.5 pts Which of the following are intensive properties? Note that there may be more than one correct choice....
Question 11 You use an analytical balance to measure the mass of a weigh boat and record a mass of 1.5624 g. You then add some NaHCO, to Not changed since the weigh boat and give the welgh boat to your lab partner to measure. Your lab partner mistakenly forgets to record all of the digits on the balance and records a mass of 1.92 g What is the minimum number of grams of acetic acid that you would need...
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