The average molar mass of dry air is 29.0 g/mol. You decide to use this value...
The average molar mass of dry air is 29.0 g/mol. You decide to use this value to represent the average molar mass of humid air. What is the percentage error in your calculation if the air is saturated with water at 25 degrees C? At 40 degrees C?
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The average molar mass of dry air is 29.0 g/mol. You decide to
use this value...
Data: Mass of flask filled with air - 150.9425 g Mass of flask filled with CO2...
Data: Mass of flask filled with air - 150.9425 g Mass of flask filled with CO2 Trial 1 - 150.9775 g Mass of flask filled with CO2 Trial 2 - 150.9805 g Average mass flask filled with CO2 - 150.979 g Temperature of CO2 - 296.15 K Barometer reading - 1.0 atm Density of water at room temp - 0.9978g/mL Density of dry air in flask at room temp - 1.201g/L Calculations: Mass of water in flask - 392.85 mL...
A calorimeter contains 29.0 mL of water at 14.0 ∘C . When 1.30 g of X (a substance with a molar mass of 61.0 g/mol ) is...
A calorimeter contains 29.0 mL of water at 14.0 ∘C . When 1.30 g of X (a substance with a molar mass of 61.0 g/mol ) is added, it dissolves via the reaction X(s)+H2O(l)→X(aq) and the temperature of the solution increases to 27.0 ∘C . Calculate the enthalpy change, ΔH, for this reaction per mole of X. Assume that the specific heat of the resulting solution is equal to that of water [4.18 J/(g⋅∘C)], that density of water is 1.00...
This question has multiple parts. Work all the parts to get the most points. The average...
This question has multiple parts. Work all the parts to get the most points. The average lung capacity of a human is 59 L. How many moles of air are in your lungs when you are in the following situations? Asume air behaves ideally and has an average moler mass of 29.0 g/mol. At sea level (T-298 K, P - 1.00 atm). Moles b The average lung capacity of a human is 59 L. How many moles of air are...
The true mass of glucose is 180.156 g/mol. The molar mass of glucose was found experimentally...
The true mass of glucose is 180.156 g/mol. The molar mass of glucose was found experimentally through its freezing point depression in pure water. The experimentally determined molar mass was 195.3 g/mol. Determine the percent error of the experimentally determined molar mass of glucose. Give the absolute value and with two decimal places.
A solution made by dissolving 85.0 g f sucrose (Molar mass. 342.3 g/mol) in 515 go...
A solution made by dissolving 85.0 g f sucrose (Molar mass. 342.3 g/mol) in 515 go acetic acid at 25 degree C froze at 14.95degreeC. Freezing point of the pure acetic acid is 16.90degreeC.Density of acetic acid is 1.05 g/ml. at 25 degree C. Answer the following and show your work in the space provided. Molality of sucrose solution = K_i of acetic acid = 93.42 g of an unknown non-volatile, non-electrolyte solute was dissolved in 850.g of acetic acid....
This question has multiple parts. Work all the parts to get the most points. a The average lung capacity of a human is...
This question has multiple parts. Work all the parts to get the most points. a The average lung capacity of a human is 6.0 L. How many moles of air are in your lungs when you are in the following situations? Assume air behaves ideally and has an average molar mass of 29.0 g/mol. At sea level (T = 298 K, P= 1.00 atm). Moles = mol air b The average lung capacity of a human is 6.0 L. How...
What would be for the mol reacted,, mol NH4X in sample, and yhr average molar mass?...
What would be for the mol reacted,, mol NH4X in sample, and yhr
average molar mass?
CALCULATIONS A. NaOH Preparation: Approximate molarity of NaOH 0.48 M B. NaOH Standardization: Trial # Mass of KHP E 1.7249 1.9569 1.8799 Volume of NaOH 18.58 L 20.58mLihat 19.71 mL Molarity of NaOH 0.4544 M 0.4654M 0. 3 M 0.4668M Average molarity of NaOH: 0.4668 M 0.4622 M C. Molar Mass of NH X Salt 1. Volume of NaOH 0.025 0.025 0.025L 2. Molarity...
Mass of stoppered flask + air + tape (record all digits from balance) ISLcBS 22 C...
Mass of stoppered flask + air + tape (record all digits from balance) ISLcBS 22 C 151.70es 22 Air temperature 151.Blo4 S1.8744 Mass of stoppered flask and CO2 (gas) + tape 23 °C °C Temperature of CO: (gas) torr Barometric pressure 204 49 mL Volume of water in flask (= Vgas) g/mL Density of air (from CRC Handbook) Mass of air in flask Calculating ngas Mass of EMPTY stoppered flask + tape Mass of CO2 in flask K K Temperature...
If the molar mass of helium is 4.0 g/mol4.0 g/mol and the molar mass of neon...
If the molar mass of helium is 4.0 g/mol4.0 g/mol and the molar mass of neon is 20.2 g/mol20.2 g/mol, then... a) All the atoms have exactly the same velocity. b) All the atoms have the same average speed. c) The average speed of the helium atoms is greater than the average speed of the neon atoms. d) The average speed of the neon atoms is greater than the average speed of the helium atoms. e) The atoms diffuse from...
1. Air at 95°F and 1 atm containing 0.0225 lbm H2O per lbm dry air is...
1. Air at 95°F and 1 atm containing 0.0225 lbm H2O per lbm dry air is send to a condenser at the rate of 500 ft3 humid air per minute. (a) What is the mass flow rate of dry air in this feed stream (lbm/min)? (b) The air leaves the cooler saturated with water at 55°F and 1 atm. If the mass flow rate of dry air was 50 lbm/min, find the rate at which water is condensed from the...
This question has multiple parts. Work all the parts to get the most points. The average lung capacity of a human is 59 L. How many moles of air are in your lungs when you are in the following situations? Asume air behaves ideally and has an average moler mass of 29.0 g/mol. At sea level (T-298 K, P - 1.00 atm). Moles b The average lung capacity of a human is 59 L. How many moles of air are...
The true mass of glucose is 180.156 g/mol. The molar mass of glucose was found experimentally through its freezing point depression in pure water. The experimentally determined molar mass was 195.3 g/mol. Determine the percent error of the experimentally determined molar mass of glucose. Give the absolute value and with two decimal places.
A solution made by dissolving 85.0 g f sucrose (Molar mass. 342.3 g/mol) in 515 go acetic acid at 25 degree C froze at 14.95degreeC. Freezing point of the pure acetic acid is 16.90degreeC.Density of acetic acid is 1.05 g/ml. at 25 degree C. Answer the following and show your work in the space provided. Molality of sucrose solution = K_i of acetic acid = 93.42 g of an unknown non-volatile, non-electrolyte solute was dissolved in 850.g of acetic acid....
This question has multiple parts. Work all the parts to get the most points. a The average lung capacity of a human is 6.0 L. How many moles of air are in your lungs when you are in the following situations? Assume air behaves ideally and has an average molar mass of 29.0 g/mol. At sea level (T = 298 K, P= 1.00 atm). Moles = mol air b The average lung capacity of a human is 6.0 L. How...
What would be for the mol reacted,, mol NH4X in sample, and yhr
average molar mass?
CALCULATIONS A. NaOH Preparation: Approximate molarity of NaOH 0.48 M B. NaOH Standardization: Trial # Mass of KHP E 1.7249 1.9569 1.8799 Volume of NaOH 18.58 L 20.58mLihat 19.71 mL Molarity of NaOH 0.4544 M 0.4654M 0. 3 M 0.4668M Average molarity of NaOH: 0.4668 M 0.4622 M C. Molar Mass of NH X Salt 1. Volume of NaOH 0.025 0.025 0.025L 2. Molarity...
Mass of stoppered flask + air + tape (record all digits from balance) ISLcBS 22 C 151.70es 22 Air temperature 151.Blo4 S1.8744 Mass of stoppered flask and CO2 (gas) + tape 23 °C °C Temperature of CO: (gas) torr Barometric pressure 204 49 mL Volume of water in flask (= Vgas) g/mL Density of air (from CRC Handbook) Mass of air in flask Calculating ngas Mass of EMPTY stoppered flask + tape Mass of CO2 in flask K K Temperature...
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