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Cinnamaldehyde is a constituent of Ceylon and Chinese cinnamon oils. (Cite source) a. What is the...
2 Why is the boiling point of ammonia higher than the boiling point of ethane? What...
2 Why is the boiling point of ammonia higher than the boiling point of ethane? What type of interaction is responsible for sodium chloride's very high melting point? A 5. What type of interaction is responsible for water's high boiling point? 4 A gaseous sample of a compound has a gas density of 0.647 g/L at 694 torr and 20 °C. What is the molar mass of this compound? If this compound contains only nitrogen and hydrogen, and is 82.2%...
Draw the skeletal structure that fits the following descriptions. a. an amine with the molecular formula...
Draw the skeletal structure that fits the following descriptions. a. an amine with the molecular formula C4H8N b. a molecule with the formula C5H6 that has both alkene and alkyne functional groups. c. an ester with 2 sp2 carbons d. a molecule with molecular formula C6H11Br that has an electrophilic carbon. Label that carbon e. a molecule with the same carbon backbone but that will have slightly higher boiling point than CH3CH2CH(OH)CH2CH3 f. Acid halide functional group with C3H5OCl molecular...
. Consider the diagram to the right auli ie iowest melting point? a) The triple point...
. Consider the diagram to the right auli ie iowest melting point? a) The triple point occurs at b) The normal melting point is c) The normal boiling point is d) The normal sublimation point is 166,000 --r----.---- 900 760 330 e) What phase do we have at 550 torr 8 and 0.005 C? f) How many phase(s) are present at 2.15 2.15 torr and -10°C? What are they? g) As pressure is increased on gaseous water at 0.002°C, how...
ch.13 answer each of these please What is the boiling point of an aqueous solution that...
ch.13
answer each of these please
What is the boiling point of an aqueous solution that has a vapor pressure of 22.5 torr at 25°C? (Puo 23.78 torn; Kb = 0,512 °C/m). Express your answer using four significant figures. VO AXO ? c A solution contains 10.55 g of unknown compound (non-electrolyte) dissolved in 50,0 mL of water. (Assume a density of 1.00 g/mL for water.) The freezing point of the solution is -4,35 °C. The mass percent composition of...
314 J/mol K 78.4+ 273,15 All work must be show to receive credit. Remember, significant figures...
314 J/mol K 78.4+ 273,15 All work must be show to receive credit. Remember, significant figures are important! P_TAH P, -AH / T,+1, IT R 0,0821 L atm/mol K = 8.314 J/mol K "P, RT TI? 1. (4 points) Ethanol has a heat of vaporization of 38 56 kJ/mol and a normal boiling point of 78.4°C. a. What is the vapor pressure of ethanol at 250°C? In P2 - Nroup CT-T2 ) 25.0+ 273. P2L n =-A 38.56 kJ last...
18) What is the strongest intermolecular force is the strongest intermolecular force in a liquid containing...
18) What is the strongest intermolecular force is the strongest intermolecular force in a liquid containing molecules with H-O bonds? A) covalent bonds B) dipole forces C) dispersion forces D) hydrogen bonds E) none of the above Section: 11.2 The Intermolecular Bond Concept 19) Consider the following liquids with similar molar masses. Predict which has the strongest intermolecular attraction based only on boiling point data. A) butyl alcohol (Bp @ 760 mm Hg = 117 °C) B) ethyl ether (Bp...
I need help with problem 16. Not problem 16 under chapter 13 set 5. *9. 9....
I need help with problem 16. Not problem 16 under chapter 13 set
5.
*9. 9. The vapor pressure of pure toluene, CyHx, is 137 torr at 60°C. What is the vapor pressure of toluene in a solution made by dissolving 25.0 grams of the nonelectrolyte glucose, C6H12O6, in 50.0 grams of toluene at 60°C? 10. The vapor pressure of water is 118 torr at 55°C. How many grams of urea, CO(NH2)2 must be added to 67.4 grams of water...
1) Cite the difference between atomic mass and atomic weight. 2) Without consulting any figures or...
1) Cite the difference between atomic mass and atomic weight. 2) Without consulting any figures or tables, determine whether each of the electron configurations given below is an inert gas, a halogen, an alkali metal, an alkaline earth metal, or a transition metal. Justify your choices. (a) 1s22s22p63523p63d7452 (d) 1s22s22p6352 (b) 1s22s22p63s23p6 (e) 1s22s22p63s23p63d2452 (C) 1s22s22p5 (1) 1s22s22p63523p6451 3) (a) What type(s) of bonding would be expected for each of the following materials; brass (a copper- zinc alloy), rubber, barium...
In Breckenridge, Colorado, the typical atmospheric pressure is 50 torr. What is the boiling point of...
In Breckenridge, Colorado, the typical atmospheric pressure is 50 torr. What is the boiling point of water (ΔHvap = 40.7 kJ/mol) in Breckenridge? Give the expected hybridization of the central atom for the following molecules or ions. (a) NO2− (b) SeCl2 (c) N3− (d) NO3− (e) CH4 (f) OCN− (carbon is the central atom)
answer it all please BS132 Experiment 3 2018-2019 The limiting reagent is the reagent which will...
answer it all please
BS132 Experiment 3 2018-2019 The limiting reagent is the reagent which will completely react and so iIs excess. It will therefore be the reagent for which a lower number o present. Compare the respective molar proportions of the reagents used A and B above] and deduce which is the limiting reagent not in f moles are Igiven by Limiting reagent = 1 mark Scale of reaction (i.e. number of moles of limiting reagent used) - mol...
2 Why is the boiling point of ammonia higher than the boiling point of ethane? What type of interaction is responsible for sodium chloride's very high melting point? A 5. What type of interaction is responsible for water's high boiling point? 4 A gaseous sample of a compound has a gas density of 0.647 g/L at 694 torr and 20 °C. What is the molar mass of this compound? If this compound contains only nitrogen and hydrogen, and is 82.2%...
. Consider the diagram to the right auli ie iowest melting point? a) The triple point occurs at b) The normal melting point is c) The normal boiling point is d) The normal sublimation point is 166,000 --r----.---- 900 760 330 e) What phase do we have at 550 torr 8 and 0.005 C? f) How many phase(s) are present at 2.15 2.15 torr and -10°C? What are they? g) As pressure is increased on gaseous water at 0.002°C, how...
ch.13
answer each of these please
What is the boiling point of an aqueous solution that has a vapor pressure of 22.5 torr at 25°C? (Puo 23.78 torn; Kb = 0,512 °C/m). Express your answer using four significant figures. VO AXO ? c A solution contains 10.55 g of unknown compound (non-electrolyte) dissolved in 50,0 mL of water. (Assume a density of 1.00 g/mL for water.) The freezing point of the solution is -4,35 °C. The mass percent composition of...
314 J/mol K 78.4+ 273,15 All work must be show to receive credit. Remember, significant figures are important! P_TAH P, -AH / T,+1, IT R 0,0821 L atm/mol K = 8.314 J/mol K "P, RT TI? 1. (4 points) Ethanol has a heat of vaporization of 38 56 kJ/mol and a normal boiling point of 78.4°C. a. What is the vapor pressure of ethanol at 250°C? In P2 - Nroup CT-T2 ) 25.0+ 273. P2L n =-A 38.56 kJ last...
18) What is the strongest intermolecular force is the strongest intermolecular force in a liquid containing molecules with H-O bonds? A) covalent bonds B) dipole forces C) dispersion forces D) hydrogen bonds E) none of the above Section: 11.2 The Intermolecular Bond Concept 19) Consider the following liquids with similar molar masses. Predict which has the strongest intermolecular attraction based only on boiling point data. A) butyl alcohol (Bp @ 760 mm Hg = 117 °C) B) ethyl ether (Bp...
I need help with problem 16. Not problem 16 under chapter 13 set
5.
*9. 9. The vapor pressure of pure toluene, CyHx, is 137 torr at 60°C. What is the vapor pressure of toluene in a solution made by dissolving 25.0 grams of the nonelectrolyte glucose, C6H12O6, in 50.0 grams of toluene at 60°C? 10. The vapor pressure of water is 118 torr at 55°C. How many grams of urea, CO(NH2)2 must be added to 67.4 grams of water...
1) Cite the difference between atomic mass and atomic weight. 2) Without consulting any figures or tables, determine whether each of the electron configurations given below is an inert gas, a halogen, an alkali metal, an alkaline earth metal, or a transition metal. Justify your choices. (a) 1s22s22p63523p63d7452 (d) 1s22s22p6352 (b) 1s22s22p63s23p6 (e) 1s22s22p63s23p63d2452 (C) 1s22s22p5 (1) 1s22s22p63523p6451 3) (a) What type(s) of bonding would be expected for each of the following materials; brass (a copper- zinc alloy), rubber, barium...
answer it all please
BS132 Experiment 3 2018-2019 The limiting reagent is the reagent which will completely react and so iIs excess. It will therefore be the reagent for which a lower number o present. Compare the respective molar proportions of the reagents used A and B above] and deduce which is the limiting reagent not in f moles are Igiven by Limiting reagent = 1 mark Scale of reaction (i.e. number of moles of limiting reagent used) - mol...
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