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A sample of dimethyl succinate insect repellent...
A sample of dimethyl succinate insect repellent is 62.58% C, 9.63% H, and 27.79% O. Its...
A sample of dimethyl succinate insect repellent is 62.58% C, 9.63% H, and 27.79% O. Its molar mass is 230. g/mol. What are the empirical and molecular formulas for dimethyl succinate? Show your work for full credit. empirical formula Enter your answer here molecular formula Enter your answer here
A 0.271-g sample of a gaseous hydrocarbon (CxHy) occupies 226 mL at 22.0 ºC at 735...
A 0.271-g sample of a gaseous hydrocarbon (CxHy) occupies 226 mL at 22.0 ºC at 735 torr. Calculate the molar mass of this hydrocarbon in g/mol. Express your answer as a number (not scientific notation) without units; for full credit, the last digit of your answer should be within ±1 of the correct value, with an appropriate number of significant figures. Molar mass: Answer g/mol. Complete combustion of 1.532 g of this gaseous hydrocarbon (CxHy) yields 4.484 g of carbon...
Gaseous hydrocarbon A 0.271-9 sample of a gaseous hydrocarbon (CxHy) occupies 117 mL at 22.0°C at...
Gaseous hydrocarbon A 0.271-9 sample of a gaseous hydrocarbon (CxHy) occupies 117 mL at 22.0°C at 735 torr. Calculate the molar mass of this hydrocarbon in g/mol. Express your answer as a number (not scientific notation) without units, for full credit, the last digit of your answer should be within 11 of the correct value, with an appropriate number of significant figures. Molar mass: g/mol. Complete combustion of 1.532 g of this gaseous hydrocarbon (CxHy) yields 4.640 g of carbon...
Please show all work and explanations if possible. Thank you so much! 4. (4pts) A mass spectrum shows significant pe...
Please show all work and explanations if possible.
Thank you so much!
4. (4pts) A mass spectrum shows significant peaks at m/z 87, 115, and 143. Which of the following compounds is responsible for that mass spectrum: 4,7-dimethyl-1-octanol, 2,6-dimethyl-4-octanol, or 2,2,4-trimethyl-4-heptanol? Provide structures of the cationic fragments that support your choice and provide the mechanism for the formation of ONE of these fragments from the molecular ion. он он но
please answer all my questions for me. thank you!! Use the References to access important values...
please answer all my questions for me. thank you!!
Use the References to access important values if needed Calculate the percentage composition for NO2. Mass percentage of nitrogen = Mass percentage of oxygen = Submit Answer Retry Entire Group 8 more group attempts remaining Reference! Use the References to access important value of needed for this question 53.95 gram sample of iron is heated in the presence of excess oxygen. A metal oxide is formed with a mass of 77.14...
If you could please show all work for these, I'd really appreciate it! 1. How many...
If you could please show all work for these, I'd really appreciate it! 1. How many grams are 4.39x10^25 molecules of nitrogen monoxide? 2. How many grams of Fe can be recovered from 55.0g of Fe2O3? 3. Calculate the (mass)% composition of magnesium hydroxide 4. Calculate the empirical formula for a compound containing 60.0% C, 4.48% H and 35.5% O. 5. A compound of carbon and hydrogen and oxygen is determined to be 38.7% C, 51.6% O and 9.7% H....
please help & explain if possible! A sample of gas fills a 475.0L balloon at STP....
please help & explain if possible!
A sample of gas fills a 475.0L balloon at STP. If the balloon is allowed to warm to 42°C as it floats up and the pressure changes to 357 torr what is the new volume of the balloon? Show your work for full credit. Enter your answer here
ercent Composition, Empirical and Section 3 - Calculations (Moles, Percent Composition, Emp Molecular Formulas) In order...
ercent Composition, Empirical and Section 3 - Calculations (Moles, Percent Composition, Emp Molecular Formulas) In order to earn full credit, you must show your work clearly, include units significant figures 1. (pts) You are given 3.50g of TNI, CHN Tou are given 3.50g of TNT. C-HSN:0. Use this starting amount to determine the quantities requested below. k clearly, include units and use reasonable a) Determine the molar mass of TNT: g/mol (no work necessary for this one). b) Determine the...
Questions You must show your work to obtain full credit. 1- Which weighs more,8.0 mL of...
Questions You must show your work to obtain full credit. 1- Which weighs more,8.0 mL of Pb ( density = 11.3g/mL) or 41.0 g of Hg? 2- Calculate the mass percent of N in N2O5 (MM of N2O5 = 108.01 g/mol): Mass percent N = 3- The empirical formula for iso-octane,C8H18 is 4- (SF) what is the density of Zirfinium if you know that 1.6 mL weighs 1.40g? 5-(SF) How many atoms are present in 354.53 amu of silicon? 6-How...
question 1,2 Your Name: Student ID: Show all your work and calculations to receive full credit....
question 1,2
Your Name: Student ID: Show all your work and calculations to receive full credit. 1. (10 pts) Ndeye learned the law of conservation of mass. Balance the following equations. a) _Ticle + NaH → Ti + NaCl + H2 gobelets b) KClO4 + KCl + O2 c) __C12H22011 + 02 CO + H2O d) _FeCl2 + K2SO4 → FeSO4 + _KCI e) __Fe + _H2O + _02 → _ Fe(OH)3 2. Tahri found that the composition of a...
A sample of dimethyl succinate insect repellent is 62.58% C, 9.63% H, and 27.79% O. Its molar mass is 230. g/mol. What are the empirical and molecular formulas for dimethyl succinate? Show your work for full credit. empirical formula Enter your answer here molecular formula Enter your answer here
Gaseous hydrocarbon A 0.271-9 sample of a gaseous hydrocarbon (CxHy) occupies 117 mL at 22.0°C at 735 torr. Calculate the molar mass of this hydrocarbon in g/mol. Express your answer as a number (not scientific notation) without units, for full credit, the last digit of your answer should be within 11 of the correct value, with an appropriate number of significant figures. Molar mass: g/mol. Complete combustion of 1.532 g of this gaseous hydrocarbon (CxHy) yields 4.640 g of carbon...
Please show all work and explanations if possible.
Thank you so much!
4. (4pts) A mass spectrum shows significant peaks at m/z 87, 115, and 143. Which of the following compounds is responsible for that mass spectrum: 4,7-dimethyl-1-octanol, 2,6-dimethyl-4-octanol, or 2,2,4-trimethyl-4-heptanol? Provide structures of the cationic fragments that support your choice and provide the mechanism for the formation of ONE of these fragments from the molecular ion. он он но
please answer all my questions for me. thank you!!
Use the References to access important values if needed Calculate the percentage composition for NO2. Mass percentage of nitrogen = Mass percentage of oxygen = Submit Answer Retry Entire Group 8 more group attempts remaining Reference! Use the References to access important value of needed for this question 53.95 gram sample of iron is heated in the presence of excess oxygen. A metal oxide is formed with a mass of 77.14...
please help & explain if possible!
A sample of gas fills a 475.0L balloon at STP. If the balloon is allowed to warm to 42°C as it floats up and the pressure changes to 357 torr what is the new volume of the balloon? Show your work for full credit. Enter your answer here
ercent Composition, Empirical and Section 3 - Calculations (Moles, Percent Composition, Emp Molecular Formulas) In order to earn full credit, you must show your work clearly, include units significant figures 1. (pts) You are given 3.50g of TNI, CHN Tou are given 3.50g of TNT. C-HSN:0. Use this starting amount to determine the quantities requested below. k clearly, include units and use reasonable a) Determine the molar mass of TNT: g/mol (no work necessary for this one). b) Determine the...
question 1,2
Your Name: Student ID: Show all your work and calculations to receive full credit. 1. (10 pts) Ndeye learned the law of conservation of mass. Balance the following equations. a) _Ticle + NaH → Ti + NaCl + H2 gobelets b) KClO4 + KCl + O2 c) __C12H22011 + 02 CO + H2O d) _FeCl2 + K2SO4 → FeSO4 + _KCI e) __Fe + _H2O + _02 → _ Fe(OH)3 2. Tahri found that the composition of a...
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