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Quins DHE Duration 4 10:44 Question 5 2...
help with All 8 questions please Question 13 2 pts How many moles of carbon are...
help with All 8 questions please
Question 13 2 pts How many moles of carbon are there in 19.3 g of sucrose, CH120.? Use 180.16 g/mol as the mw of ose. Give your answer three decimal places. su Question 14 3 pts A sample of C6H12 has 34.5 g of carbon. How many moles of CH 12 are there? Use 12.01 g/mol as the mw of carbon and 84.16 g/mol as the mw of C6H12. Give your answer to three...
help with all 6 questions please Question 24 1 pts An isotonic solution of NaCl is...
help with all 6 questions please
Question 24 1 pts An isotonic solution of NaCl is 0.90% w/v. Suppose you start with a teaspoon (5.69 g) of NaCl and dissolve it in water. How many total mL would the solution need to be to be isotonic? Give to at least two significant figures? Question 25 1 pts A soft drink has a pH of 2. What will be the concentration of Ht? Give the exact number, without the unit. I...
Date: Period: Name: You Try... 4. Given the following chemical equation 4P + 50; → 2...
Date: Period: Name: You Try... 4. Given the following chemical equation 4P + 50; → 2 PO (a) How many moles of P,0, are formed from 3.4 moles of O,? SHOW the math below (b) How many moles of P are needed to react with 30,1 moles of O,? SHOW the math below. 5. Aluminum reacts with copper(ll) chloride to make aluminum chloride and copper (a) Write the balanced equation (b) Given 6 moles of Cuch, how many moles of...
i need help with all these questions please Question 23 4 pts Which of these liquids...
i need help with all these questions please
Question 23 4 pts Which of these liquids is most likely to have the lowest (slowest) rate of evaporation (g/min) and why? Select the single best answer. H H H HH :01 IH terbaru H 11 HHH cnc- 7 H H H ica H 나 Hit 4 c B A ΟΟΟΟΟΟ C, because it has the highest molar mass. A, because this molecule has the lowest molar mass.. B, because it has...
please help with all questions! Fall 2109 CHE 151-01 Exam 2 Chapter 4-6 Question 5 Question 6 (21 Points) Al2S3 + H2...
please help with all questions!
Fall 2109 CHE 151-01 Exam 2 Chapter 4-6 Question 5 Question 6 (21 Points) Al2S3 + H2O - Al(OH)3 + H2S Suppose 316.0 g aluminum sulfide reacts with 0.493 kg of water. a) Write the balanced equation (2 Points) b) What % of Al(OH)3 is Al by mass? (2 Points) c) Identify the limiting and excess reagents (2Points) d) Calculate the number of moles and the mass in (g) after the reaction is complete for:...
please help me with questions from 3-10! and the bonus. thank you so much Directions: Place...
please help me with questions from 3-10! and the bonus.
thank you so much
Directions: Place your answers to the following questions in the provided spaces. (12 PTS) 1. What is the hybridization of the carbon atoms numbered 1 and 2 respectively in the following structure? -CU CECH A. B sp,sp? sp, sp sp, sp sp', sp sp, sp Ans. 2. What is the IUPAC name for the molecule shown below? os B. C. D. E. (E)-5-methyl-5-hepten-1-yne (2)-5-methyl-5-hepten-1-yne (E)-3-methyl-2-hepten-6-yne (2)-3-methyl-2-hepten-6-yne...
help with All 8 questions please
Question 13 2 pts How many moles of carbon are there in 19.3 g of sucrose, CH120.? Use 180.16 g/mol as the mw of ose. Give your answer three decimal places. su Question 14 3 pts A sample of C6H12 has 34.5 g of carbon. How many moles of CH 12 are there? Use 12.01 g/mol as the mw of carbon and 84.16 g/mol as the mw of C6H12. Give your answer to three...
help with all 6 questions please
Question 24 1 pts An isotonic solution of NaCl is 0.90% w/v. Suppose you start with a teaspoon (5.69 g) of NaCl and dissolve it in water. How many total mL would the solution need to be to be isotonic? Give to at least two significant figures? Question 25 1 pts A soft drink has a pH of 2. What will be the concentration of Ht? Give the exact number, without the unit. I...
Date: Period: Name: You Try... 4. Given the following chemical equation 4P + 50; → 2 PO (a) How many moles of P,0, are formed from 3.4 moles of O,? SHOW the math below (b) How many moles of P are needed to react with 30,1 moles of O,? SHOW the math below. 5. Aluminum reacts with copper(ll) chloride to make aluminum chloride and copper (a) Write the balanced equation (b) Given 6 moles of Cuch, how many moles of...
i need help with all these questions please
Question 23 4 pts Which of these liquids is most likely to have the lowest (slowest) rate of evaporation (g/min) and why? Select the single best answer. H H H HH :01 IH terbaru H 11 HHH cnc- 7 H H H ica H 나 Hit 4 c B A ΟΟΟΟΟΟ C, because it has the highest molar mass. A, because this molecule has the lowest molar mass.. B, because it has...
please help with all questions!
Fall 2109 CHE 151-01 Exam 2 Chapter 4-6 Question 5 Question 6 (21 Points) Al2S3 + H2O - Al(OH)3 + H2S Suppose 316.0 g aluminum sulfide reacts with 0.493 kg of water. a) Write the balanced equation (2 Points) b) What % of Al(OH)3 is Al by mass? (2 Points) c) Identify the limiting and excess reagents (2Points) d) Calculate the number of moles and the mass in (g) after the reaction is complete for:...
please help me with questions from 3-10! and the bonus.
thank you so much
Directions: Place your answers to the following questions in the provided spaces. (12 PTS) 1. What is the hybridization of the carbon atoms numbered 1 and 2 respectively in the following structure? -CU CECH A. B sp,sp? sp, sp sp, sp sp', sp sp, sp Ans. 2. What is the IUPAC name for the molecule shown below? os B. C. D. E. (E)-5-methyl-5-hepten-1-yne (2)-5-methyl-5-hepten-1-yne (E)-3-methyl-2-hepten-6-yne (2)-3-methyl-2-hepten-6-yne...
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