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500. mL, a pressure in its closed container of What was the new volume of the...
500. mL, a pressure in its closed container of What was the new volume of the gas when the temperature 6) A sample of nitrogen gas had a volume of 740 torr, and a temperature of 25 °C. was changed to 50 C and the new pressure was 760 torr, if the amount of gas does not change? A) 530 mL B) 450 mlL C) 970 mL. D) 240 mL E) 400 mL 7) The predominant intermolecular force in (CH3)2NH...
please please quickkk helpp Question 25 3.5 pts A 0.258-g sample of a pure triprotic acid,...
please please quickkk helpp
Question 25 3.5 pts A 0.258-g sample of a pure triprotic acid, H3A, (where A is the generic anion of the acid), was dissolved in water and titrated with 0.150 M barium hydroxide solution. The titration required 13.9 mL of the base to reach the equivalence point. What is the molar mass of the acid ? 227 g/mol 82.5 g/mol 371 g/mol 124 g/mol 186 g/mol 1.5 pts Question 22 Identify the strongest intermolecular force in...
Hydrogen bonds are essentially a stronger version of which int force? 5. a. Ion-dipole forces b....
Hydrogen bonds are essentially a stronger version of which int force? 5. a. Ion-dipole forces b. London forces c. Dipole-dipole foces d. lon-ion forces 6. Increasing the pressure by 1000-fold on a solid or liquid dramatically decreases its volume. a. causes it to undergo thermal expansion. b. significantly decreases the density. c. does not have a significant effect on the volume. d. 7. A gas at 550 torr and 1.2 liters is allowed to expand to 4.3 liters. What is...
please answer all Question 25 3.5 pts A 0.258-g sample of a pure triprotic acid, H3A,...
please answer all
Question 25 3.5 pts A 0.258-g sample of a pure triprotic acid, H3A, (where A is the generic anion of the acid), was dissolved in water and titrated with 0.150 M barium hydroxide solution. The titration required 13.9 mL of the base to reach the equivalence point. What is the molar mass of the acid ? 227 g/mol 82.5 g/mol 371 g/mol 124 g/mol 186 g/mol Question 24 1.5 pts Which of the following compounds would have...
I need the best solution for these 2 questions on the section " Check your learning"...
I need the best solution for these 2 questions on the
section " Check your learning" (10.4 and 10.5) to prepare my exam in class.
Thank you so much for helping me
Y althlon tai sok Translate Gm arch this book O Back Figure 10.20 Depending upon the relative strengths of adhesive and cohesive forces, a liquid may rise (such as water) or fall (such as mercury) in a glass capillary tube. The extent of the rise (or falt is...
15. The mixing of which pair of reactants will result in a precipitation reaction? CsI(aq)...
15. The mixing of which pair of reactants will result in a precipitation reaction? CsI(aq) + NaOH(aq) HCl(aq) + Ca(OH)2(aq) K2SO4(aq) + Hg2(NO3)2(aq) NaNO3(aq) + NH4Cl(aq) 16. Which of the following is a precipitation reaction? Zn(s) + 2 AgNO3(aq) 2 Ag(s) + Zn(NO3)2(aq) NaCl(aq) + LiI(aq) NaI(aq) + LiCl(aq) 2 KI(aq) + Hg2(NO3)2(aq) Hg2I2(s) + 2 KNO3(aq) HI(aq) + NaOH(aq) NaI(aq) + H2O(l) None of these are precipitation reactions. 17. Which...
1. Some solids can be converted directly to the vapor phase by heating. The process is...
1. Some solids can be converted directly to the vapor phase by heating. The process is called: a) Fusion b) sublimation c) vaporization d) condensation e) distillation 2. Which one of the following substances is INCORRECTLY matched with the kind of solid it forms? Substance Kind of Solid a) Sulfur dioxide molecular b) Graphite covalent c) Calcium bromide ionic d) Lithium ionic e) Methane molecular 3. Arrange the following in order of increasing melting points: KCl, He, H2O, HF. a)...
i need help with 17-26 will be installed later What mass of aluminum reacts with 60.5...
i need help with 17-26
will be installed later What mass of aluminum reacts with 60.5 g of chlorine (Cl), according to the balanced chemical equation below: 2 A1 + 3Cl2 --> 2AICI 15.3g 30.78 23.03 46.03 5.10 7.678 4 pts Question 18 What volume of a 3.00 M solution of KCl is required to make 500.0 ml. of a 0.300 M solution of KCI? 3.00 mL 500 ml 300 mL 5.00 mL 16.7 ml 10.0 ml 500.0 ml Question...
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...
THERES MORE THAN ONE PICTURE. I NEED ALL ANSWERED THANK YOU QUESTION 2 Calculate the pOH...
THERES MORE THAN ONE PICTURE. I NEED ALL ANSWERED THANK
YOU
QUESTION 2 Calculate the pOH of a solution at 25.0°C that contains 2.95 x 10-12 M hydronium ions. 2.95 O 11.53 12.00 O 7.00 2.47 QUESTION 1 An aqueous solution at 25.0°C contains [H') -0,085 M. What is the pH of the solution? O 13.0 O 0.9850 O 1.07 O 1.20 10-13 O -1.07 QUESTION 2 10-12 M hydronium ions. Calculate the pOH of a solution at 25.0°C that...
500. mL, a pressure in its closed container of What was the new volume of the gas when the temperature 6) A sample of nitrogen gas had a volume of 740 torr, and a temperature of 25 °C. was changed to 50 C and the new pressure was 760 torr, if the amount of gas does not change? A) 530 mL B) 450 mlL C) 970 mL. D) 240 mL E) 400 mL 7) The predominant intermolecular force in (CH3)2NH...
please please quickkk helpp
Question 25 3.5 pts A 0.258-g sample of a pure triprotic acid, H3A, (where A is the generic anion of the acid), was dissolved in water and titrated with 0.150 M barium hydroxide solution. The titration required 13.9 mL of the base to reach the equivalence point. What is the molar mass of the acid ? 227 g/mol 82.5 g/mol 371 g/mol 124 g/mol 186 g/mol 1.5 pts Question 22 Identify the strongest intermolecular force in...
Hydrogen bonds are essentially a stronger version of which int force? 5. a. Ion-dipole forces b. London forces c. Dipole-dipole foces d. lon-ion forces 6. Increasing the pressure by 1000-fold on a solid or liquid dramatically decreases its volume. a. causes it to undergo thermal expansion. b. significantly decreases the density. c. does not have a significant effect on the volume. d. 7. A gas at 550 torr and 1.2 liters is allowed to expand to 4.3 liters. What is...
please answer all
Question 25 3.5 pts A 0.258-g sample of a pure triprotic acid, H3A, (where A is the generic anion of the acid), was dissolved in water and titrated with 0.150 M barium hydroxide solution. The titration required 13.9 mL of the base to reach the equivalence point. What is the molar mass of the acid ? 227 g/mol 82.5 g/mol 371 g/mol 124 g/mol 186 g/mol Question 24 1.5 pts Which of the following compounds would have...
I need the best solution for these 2 questions on the
section " Check your learning" (10.4 and 10.5) to prepare my exam in class.
Thank you so much for helping me
Y althlon tai sok Translate Gm arch this book O Back Figure 10.20 Depending upon the relative strengths of adhesive and cohesive forces, a liquid may rise (such as water) or fall (such as mercury) in a glass capillary tube. The extent of the rise (or falt is...
1. Some solids can be converted directly to the vapor phase by heating. The process is called: a) Fusion b) sublimation c) vaporization d) condensation e) distillation 2. Which one of the following substances is INCORRECTLY matched with the kind of solid it forms? Substance Kind of Solid a) Sulfur dioxide molecular b) Graphite covalent c) Calcium bromide ionic d) Lithium ionic e) Methane molecular 3. Arrange the following in order of increasing melting points: KCl, He, H2O, HF. a)...
i need help with 17-26
will be installed later What mass of aluminum reacts with 60.5 g of chlorine (Cl), according to the balanced chemical equation below: 2 A1 + 3Cl2 --> 2AICI 15.3g 30.78 23.03 46.03 5.10 7.678 4 pts Question 18 What volume of a 3.00 M solution of KCl is required to make 500.0 ml. of a 0.300 M solution of KCI? 3.00 mL 500 ml 300 mL 5.00 mL 16.7 ml 10.0 ml 500.0 ml Question...
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...
THERES MORE THAN ONE PICTURE. I NEED ALL ANSWERED THANK
YOU
QUESTION 2 Calculate the pOH of a solution at 25.0°C that contains 2.95 x 10-12 M hydronium ions. 2.95 O 11.53 12.00 O 7.00 2.47 QUESTION 1 An aqueous solution at 25.0°C contains [H') -0,085 M. What is the pH of the solution? O 13.0 O 0.9850 O 1.07 O 1.20 10-13 O -1.07 QUESTION 2 10-12 M hydronium ions. Calculate the pOH of a solution at 25.0°C that...
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