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help with chemistry unit conversion 6. Convert a concentration of 6.0x1014 molecules cm to moles per liter (molarity) and ppm. scale. Assume 25 °C and 1.0 atm total air pressure. 6. Convert a...
Unit conversion. (10 pts) Convert a concentration of 5.62 ´1013 molecules/cm 3 to the ppb scale....
Unit conversion. (10 pts) Convert a concentration of 5.62 ´1013 molecules/cm 3 to the ppb scale. Assume 25° C and 1.0 atm total air pressure. Convert a concentration of 6.0 ´1014 molecules/cm 3 to the moles per liter (molarity) scale. Assume 27.5° C and 0.99 atm total air pressure. Convert a concentration of 36.5 ppb of ozone, O3, into the number of molecules/cm3. Assume the air mass temperature is 25.3° C and its total pressure is 1.05 atm. Convert a...
help with the following concentration question 8. In one study the concentration of OH in air at the time was found to...
help with the following concentration question
8. In one study the concentration of OH in air at the time was found to be 8.7x106 molecules per cubic centimeter. Calculate the molar concentration, and its concentration in parts per trillion, if the total air pressure is 1.0 atm and the temperature is 15°C
8. In one study the concentration of OH in air at the time was found to be 8.7x106 molecules per cubic centimeter. Calculate the molar concentration, and its...
8. What is the difference in blood oxygen concentration between a person at sea level where the air pressure is 1.0 atm and the top of K2, where the total air pressure is 34.7 kPa? (You can assume the mole fraction of oxygen in air remains constant at 0.2
1. What is the difference in blood oxygen concentration between a person at sea level where the air pressure is 1.0 atm and the top of K2, where the total air pressure is 34.7 kPa? (You can assume the mole fraction of oxygen in air remains constant at 0.21 (or 21% of the total air pressure is oxygen), the temperature is 37 C, and that the solubility of oxygen in blood at 37 C is approximately 1.0 x 10-3 mol/L-atm.)
Figure 4: Osmotic Pressure Tosm = CRT C = the total solute concentration in moles/liter R...
Figure 4: Osmotic Pressure Tosm = CRT C = the total solute concentration in moles/liter R = the gas constant [0.082 (liter x atm)/(©K x mole)] T = the temperature in Kelvin (K = 273 + °C). The osmotic pressure of a 20% NaCl solution is _the osmotic pressure of a 20% sucrose solution. Refer to Figure 4. (NaCl = 58g/mol; sucrose = 342g/mol) higher than lower than equal to
Caleulate the 0.45 ppm NO, concentration at 25°C and 1 atm pressure as mg/m' and ug/m...
Caleulate the 0.45 ppm NO, concentration at 25°C and 1 atm pressure as mg/m' and ug/m 5. Estimate the stoichiometric air to fuel ratio for a 100% ethanol (CHCH2OH) fuel One mole of CH,CHOH-46g: one mole of O;-32g; one mole of N, 28g Assume the following reaction. 6 CH CH,OH+36 O; +135.36 N;12 CO + 18 H,O+135.35 N (Ans:18) Solid waste with the density of 110 kg/m is spread in a 0.5m layer at a landfill. If a steel wheel...
3) You are using flux chambers to determine rates of soil respiration from the same Brazilian rainforest. Your chamber is a cylinder 20 cm in diameter and 18 cm in height, and you record the followin...
3) You are using flux chambers to determine rates of soil respiration from the same Brazilian rainforest. Your chamber is a cylinder 20 cm in diameter and 18 cm in height, and you record the following data with an infrared gas analyzer: Time CO2 concentration arts per million, ppm 0 min 410 2 min521 4 min630 6 min 743 8 min859 10 min 973 12 min1081 Measuring soil respiration with a chamber and infrared gas analyzer. What is the flux...
Part 1. The air in a bicycle tire is bubbled through water and collected at 25∘C. If the total volume of gas collected i...
Part 1. The air in a bicycle tire is bubbled through water and collected at 25∘C. If the total volume of gas collected is 5.60 L at a temperature of 25∘C and a pressure of 760 torr, how many moles of gas were in the bicycle tire? - Part 2. A 295-mL flask contains pure helium at a pressure of 755 torr . A second flask with a volume of 480 mL contains pure argon at a pressure of 714...
Thank you for your help! 1. If an ideal gas has a pressure of 9.239.23 atm,...
Thank you for your help! 1. If an ideal gas has a pressure of 9.239.23 atm, a temperature of 55.2855.28 °C, and a volume of 97.8997.89 L, how many moles of gas are in the sample? Moles: 2.The balanced equation for the neutralization reaction of aqueous H2SO4H2SO4 with aqueous KOHKOH is shown. H2SO4(aq)+2KOH(aq)⟶2H2O(l)+K2SO4(aq)H2SO4(aq)+2KOH(aq)⟶2H2O(l)+K2SO4(aq) What volume of 0.4100.410 M KOHKOH is needed to react completely with 15.315.3 mL of 0.1700.170 M H2SO4H2SO4? volume:____ mL 3.How many grams of solute are present...
Homework week 6 1. How do gaseous, liquid, and solid methanol (CHO) compare in each of...
Homework week 6 1. How do gaseous, liquid, and solid methanol (CHO) compare in each of the following features: (a) density; (b) the space between the molecules; (c) the attractive force between the molecules? 2. Convert each pressure unit to the indicated unit. a. 3.0 atm to mm Hg b. 720 mm Hg to psi c. 424 mm Hg to atm 3. A sample of nitrogen gas has a volume of 15.0 mL at a pressure of 0.50 atm. What...
Could someone help me with these? General Chemistry - Worksheets Potentially Useful Information Sucrose molecular mass...
Could someone help me with these?
General Chemistry - Worksheets Potentially Useful Information Sucrose molecular mass 342.30 g/ mol Density of propylene glycol at 25 C 1.036 g/cm Density of water at 25 C 0.0070 g/m the boiling point elevation constant of water 0.52 "Cim K Key Questions Key Questions (Show your work on all questions.) 1. a. What is mollity of a solution made by dissolving 137.9 g of Sucrose in 414.19 of water? Answer b. What is molarity...
help with the following concentration question
8. In one study the concentration of OH in air at the time was found to be 8.7x106 molecules per cubic centimeter. Calculate the molar concentration, and its concentration in parts per trillion, if the total air pressure is 1.0 atm and the temperature is 15°C
8. In one study the concentration of OH in air at the time was found to be 8.7x106 molecules per cubic centimeter. Calculate the molar concentration, and its...
Figure 4: Osmotic Pressure Tosm = CRT C = the total solute concentration in moles/liter R = the gas constant [0.082 (liter x atm)/(©K x mole)] T = the temperature in Kelvin (K = 273 + °C). The osmotic pressure of a 20% NaCl solution is _the osmotic pressure of a 20% sucrose solution. Refer to Figure 4. (NaCl = 58g/mol; sucrose = 342g/mol) higher than lower than equal to
Caleulate the 0.45 ppm NO, concentration at 25°C and 1 atm pressure as mg/m' and ug/m 5. Estimate the stoichiometric air to fuel ratio for a 100% ethanol (CHCH2OH) fuel One mole of CH,CHOH-46g: one mole of O;-32g; one mole of N, 28g Assume the following reaction. 6 CH CH,OH+36 O; +135.36 N;12 CO + 18 H,O+135.35 N (Ans:18) Solid waste with the density of 110 kg/m is spread in a 0.5m layer at a landfill. If a steel wheel...
3) You are using flux chambers to determine rates of soil respiration from the same Brazilian rainforest. Your chamber is a cylinder 20 cm in diameter and 18 cm in height, and you record the following data with an infrared gas analyzer: Time CO2 concentration arts per million, ppm 0 min 410 2 min521 4 min630 6 min 743 8 min859 10 min 973 12 min1081 Measuring soil respiration with a chamber and infrared gas analyzer. What is the flux...
Homework week 6 1. How do gaseous, liquid, and solid methanol (CHO) compare in each of the following features: (a) density; (b) the space between the molecules; (c) the attractive force between the molecules? 2. Convert each pressure unit to the indicated unit. a. 3.0 atm to mm Hg b. 720 mm Hg to psi c. 424 mm Hg to atm 3. A sample of nitrogen gas has a volume of 15.0 mL at a pressure of 0.50 atm. What...
Could someone help me with these?
General Chemistry - Worksheets Potentially Useful Information Sucrose molecular mass 342.30 g/ mol Density of propylene glycol at 25 C 1.036 g/cm Density of water at 25 C 0.0070 g/m the boiling point elevation constant of water 0.52 "Cim K Key Questions Key Questions (Show your work on all questions.) 1. a. What is mollity of a solution made by dissolving 137.9 g of Sucrose in 414.19 of water? Answer b. What is molarity...
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