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P_1V_1/T_1 = P_2V_2/T_2 PV = nRT M = mRT/PV R = 0.08206 L middot atm/mol...
Constant R = 0.08206 L atm mol K 1. (1 pt) Convert 187.2 Torr to atmospheres....
Constant R = 0.08206 L atm mol K 1. (1 pt) Convert 187.2 Torr to atmospheres. 2. (2 pts) Calculate the pressure of 1.64 mol of a perfect gas that occupies a volume of 21.4 L at room temperature (25°C). 3. (2 pts) What is the molar mass of a 28.0 g sample of a perfect gas that occupies a volume of 22.4 L at a pressure of 1.00 atm and at a temperature of 0°C? Name (print): Section No....
R = universal gas constant = 0.08206 L *atm/mol *K 3. (6 pt) Use this information...
R = universal gas constant = 0.08206 L *atm/mol *K 3. (6 pt) Use this information to answer the following three questions: You have 2.05 mol of nitrogen gas in a flexible, sealed 420 mL container at room temperature (25°C) that has an internal pressure of 542 mm Hg. a. The volume of the container is expanded to 560. mL. What is the new pressure of the container? b. The container is heated to 60°C, what is the new pressure...
1.Ideal Gas Law PV = nRT with atm: R = 0.0821 L*atm/(K*mol) If I have 4...
1.Ideal Gas Law PV = nRT with atm: R = 0.0821 L*atm/(K*mol) If I have 4 moles of a gas at a pressure of 5.6 atm and a volume of 12 liters, what is the temperature? 2. If I contain 3 moles of gas in a container with a volume of 60 liters and at a temperature of 400 K, what is the pressure inside the container? 3. If I have 7.7 moles of gas at a pressure of 0.09...
The van der Waals equation gives a relationship between the pressure p (atm), volume V(L), and temperature T(K) for a real gas: .2 where n is the number of moles, R 0.08206(L atm)(mol K) is the gas c...
The van der Waals equation gives a relationship between the pressure p (atm), volume V(L), and temperature T(K) for a real gas: .2 where n is the number of moles, R 0.08206(L atm)(mol K) is the gas con- stant, and a (L- atm/mol-) and b (L/mol) are material constants. Determine the volume of 1.5 mol of nitrogen (a .39 L2 atm/mol2. b = 0.03913 L/mol) at temperature of 350 K and pressure of 70 atm.
The van der Waals equation...
Q1) Q2) Take R = 0.08206 L atm/mol K or 8.314 J /mol K if you...
Q1)
Q2)
Take R = 0.08206 L atm/mol K or 8.314 J /mol K if you need
Thank you
9.47 g of a polystyrene sample was dissolved in acetone to make 135 mL of solution, and the osmotic pressure was measured to be 10.6 torr at 27°C. a) What is the molarity of the polystyrene solution? [Select] y x104M b) What is the approximate molar mass of the polystyrene? (Select] x 105 g/mol (Correct your answers to 3 sig. fig.)...
1) What is the final pressure (expressed in atm) of a 3.05 L system initially at...
1) What is the final pressure (expressed in atm) of a 3.05 L system initially at 724 mm Hg and 298 K that is compressed to a final volume of 2.51 L at 273 K? 1) 2) What is the pressure of a 1.0 L flask containing 0.60% of He at 25°C? (R-0.0821 L atm/mol K) 3) What is the volume of 28.0 g of nitrogen gas at STP? 3) 4) What is the final pressure of a system (atm)...
Class-work ch.6 and ch. 10 Name 1) What is the final pressure (expressed in atm) of...
Class-work ch.6 and ch. 10 Name 1) What is the final pressure (expressed in atm) of a 3.05 L system initially at 7wHg and 2 that is compressed to a final volume of 2.51 L at 273 K 1) 2) What is the pressure of a 1.0 L flask containing 0.60g of He at 25°C? (R-0.0821 L atm/mol K) 3) What is the volume of 28.0 g of nitrogen gas at STP? 3) 4) What is the final pressure of...
R-0.08206 (atm - L)(mol - K)= 8.314 J/(mol-K) pH = -log[H30) pOH = -log(OH) pX=-logX [HO'] = 10 Ph. K, EK.(RT) pH +...
R-0.08206 (atm - L)(mol - K)= 8.314 J/(mol-K) pH = -log[H30) pOH = -log(OH) pX=-logX [HO'] = 10 Ph. K, EK.(RT) pH + pOH = 14 = pK+pKb [OH (H:0= 10-14 = K, * Ks (in water at 25°C) pH =pK, + log([base)/(acid]) pOH =pKy + log (acid]/[base]) Molar Solubility = (*+ m for a salt that dissociates into ions with coefficients of n and m - b b -4ac where 0 = ax + bx+c VA= A/ X=- 1)...
An Alka-Seltzer tablet consists of NaHCOs (sodium bicarbonate), citric acid (H3C&HsO; citric acid...
I Need the pre-lab
Questions, please
An Alka-Seltzer tablet consists of NaHCOs (sodium bicarbonate), citric acid (H3C&HsO; citric acid is triprotic), aspirin and other inert ingredients. When dissolved in water, citric acid and NaHCO3 components react as follows: In the first part of the experiment, we will determine the mass of NaHCO in a tablet of Alka Seltzer. To do this, we will use a known mass of a powdered sample of Alka-Seltzer and determine the mass of CO2 gas...
0/ 1 pts Question 2 During a certain titration, 35.0 mL of 0.175 M aqueous sulfuric...
0/ 1 pts Question 2 During a certain titration, 35.0 mL of 0.175 M aqueous sulfuric acid was required to exactly neutralize 49.0 mL of sodium hydroxide. Determine the molarity of the base. H2SO4 (aq) + 2NaOH(aq) + 2 H2O (0) + Na2SO4 (aq) [balanced] 0.125 M 6.00 x 10 M 0.250 M 0.175 M 0.600 M 2ct Question 6 0/1 pts Calculate the pressure exerted by 5.12 grams of chlorine gas in a 850 mL sealed flask at 27.0°C....
Constant R = 0.08206 L atm mol K 1. (1 pt) Convert 187.2 Torr to atmospheres. 2. (2 pts) Calculate the pressure of 1.64 mol of a perfect gas that occupies a volume of 21.4 L at room temperature (25°C). 3. (2 pts) What is the molar mass of a 28.0 g sample of a perfect gas that occupies a volume of 22.4 L at a pressure of 1.00 atm and at a temperature of 0°C? Name (print): Section No....
R = universal gas constant = 0.08206 L *atm/mol *K 3. (6 pt) Use this information to answer the following three questions: You have 2.05 mol of nitrogen gas in a flexible, sealed 420 mL container at room temperature (25°C) that has an internal pressure of 542 mm Hg. a. The volume of the container is expanded to 560. mL. What is the new pressure of the container? b. The container is heated to 60°C, what is the new pressure...
The van der Waals equation gives a relationship between the pressure p (atm), volume V(L), and temperature T(K) for a real gas: .2 where n is the number of moles, R 0.08206(L atm)(mol K) is the gas con- stant, and a (L- atm/mol-) and b (L/mol) are material constants. Determine the volume of 1.5 mol of nitrogen (a .39 L2 atm/mol2. b = 0.03913 L/mol) at temperature of 350 K and pressure of 70 atm.
The van der Waals equation...
Q1)
Q2)
Take R = 0.08206 L atm/mol K or 8.314 J /mol K if you need
Thank you
9.47 g of a polystyrene sample was dissolved in acetone to make 135 mL of solution, and the osmotic pressure was measured to be 10.6 torr at 27°C. a) What is the molarity of the polystyrene solution? [Select] y x104M b) What is the approximate molar mass of the polystyrene? (Select] x 105 g/mol (Correct your answers to 3 sig. fig.)...
1) What is the final pressure (expressed in atm) of a 3.05 L system initially at 724 mm Hg and 298 K that is compressed to a final volume of 2.51 L at 273 K? 1) 2) What is the pressure of a 1.0 L flask containing 0.60% of He at 25°C? (R-0.0821 L atm/mol K) 3) What is the volume of 28.0 g of nitrogen gas at STP? 3) 4) What is the final pressure of a system (atm)...
Class-work ch.6 and ch. 10 Name 1) What is the final pressure (expressed in atm) of a 3.05 L system initially at 7wHg and 2 that is compressed to a final volume of 2.51 L at 273 K 1) 2) What is the pressure of a 1.0 L flask containing 0.60g of He at 25°C? (R-0.0821 L atm/mol K) 3) What is the volume of 28.0 g of nitrogen gas at STP? 3) 4) What is the final pressure of...
R-0.08206 (atm - L)(mol - K)= 8.314 J/(mol-K) pH = -log[H30) pOH = -log(OH) pX=-logX [HO'] = 10 Ph. K, EK.(RT) pH + pOH = 14 = pK+pKb [OH (H:0= 10-14 = K, * Ks (in water at 25°C) pH =pK, + log([base)/(acid]) pOH =pKy + log (acid]/[base]) Molar Solubility = (*+ m for a salt that dissociates into ions with coefficients of n and m - b b -4ac where 0 = ax + bx+c VA= A/ X=- 1)...
I Need the pre-lab
Questions, please
An Alka-Seltzer tablet consists of NaHCOs (sodium bicarbonate), citric acid (H3C&HsO; citric acid is triprotic), aspirin and other inert ingredients. When dissolved in water, citric acid and NaHCO3 components react as follows: In the first part of the experiment, we will determine the mass of NaHCO in a tablet of Alka Seltzer. To do this, we will use a known mass of a powdered sample of Alka-Seltzer and determine the mass of CO2 gas...
0/ 1 pts Question 2 During a certain titration, 35.0 mL of 0.175 M aqueous sulfuric acid was required to exactly neutralize 49.0 mL of sodium hydroxide. Determine the molarity of the base. H2SO4 (aq) + 2NaOH(aq) + 2 H2O (0) + Na2SO4 (aq) [balanced] 0.125 M 6.00 x 10 M 0.250 M 0.175 M 0.600 M 2ct Question 6 0/1 pts Calculate the pressure exerted by 5.12 grams of chlorine gas in a 850 mL sealed flask at 27.0°C....
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