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3 Check my work Be sure to answer all parts. The air in a hot-air balloon...
The air in a hot-air balloon at 775 torr is heated from 23.0°C to 25.0°C. Assuming...
The air in a hot-air balloon at 775 torr is heated from 23.0°C to 25.0°C. Assuming that the moles of air and the pressure remains constant, what is the density of the air at each temperature? (The average molar mass of air is 29.0 g/mol) Density at 23.0°C _____ g/L density at 25.0°C _____ g/L
A hot air balloon starts to take off when the temperature inside the balloon is 111...
A hot air balloon starts to take off when the temperature inside the balloon is 111 °C higher than the outside air. The pressure is the same inside and outside the balloon and there is a total of 2.50× 105 moles of air in the balloon. Assuming that the air density outside of the balloon is 1.20 kg/m3, what is the total mass of the balloon and its load? The answer is 2.73 × 103 kg. I am not sure...
2 attempts left Check my work Be sure to answer all parts. A biochemical engineer isolates...
2 attempts left Check my work Be sure to answer all parts. A biochemical engineer isolates a bacterial gene fragment and dissolves a 16.0-mg sample in enough water to make 30.0 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C. (a) What is the molar mass of the gene fragment? g/mol (b) If the solution density is 0.997 g/mL, how large is the freezing point depression for this solution (K of water = 1.86°C/m)?
We consider a hot-air balloon of mass 231 kg (basket and envelope). The spherical envelope of...
We consider a hot-air balloon of mass 231 kg (basket and envelope). The spherical envelope of the balloon has a diameter of 15 m when fully inflated. To what temperature (in °C) must the enclosed air be heated for the balloon to carry five standard men? Assume the surrounding air is at 20°C and is treated as an ideal gas. Use 29 g/mol for the molar mass of air. (Assume the mass of each standard man is 70 kg.)
We consider a hot-air balloon of mass 226 kg (basket and envelope). The spherical envelope of...
We consider a hot-air balloon of mass 226 kg (basket and envelope). The spherical envelope of the balloon has a diameter of 15 m when fully inflated. To what temperature (in °C) must the enclosed air be heated for the balloon to carry five standard men? Assume the surrounding air is at 20°C and is treated as an ideal gas. Use 29 g/mol for the molar mass of air. (Assume the mass of each standard man is 70 kg.)
We consider a hot-air balloon of mass 237 kg (basket and envelope). The spherical envelope of...
We consider a hot-air balloon of mass 237 kg (basket and envelope). The spherical envelope of the balloon has a diameter of 19 m when fully inflated. To what temperature in °C) must the enclosed air be heated for the balloon to carry five standard men? Assume the surrounding air is at 20°C and is treated as an ideal gas. Use 29 g/mol for the molar mass of air. (Assume the mass of each standard man is 70 kg.) 122.83...
We consider a hot-air balloon of mass 269 kg (basket and envelope). The spherical envelope of...
We consider a hot-air balloon of mass 269 kg (basket and envelope). The spherical envelope of the balloon has a diameter of 15 m when fully inflated. To what temperature in °C) must the enclosed air be heated for the balloon to carry three standard men? Assume the surrounding air is at 20°C and is treated as an ideal gas. Use 29 g/mol for the molar mass of air. (Assume the mass of each standard man is 70 kg.) 97.45...
The mass of a hot-air balloon and its cargo (not including the air inside) is 200...
The mass of a hot-air balloon and its cargo (not including the air inside) is 200 kg. The air outside is at 10.0°C and 101 kPa. The volume of the balloon is475 m3. To what temperature must the air in the balloon be heated before the balloon will liftoff? (Air density at 10.0°C is 1.25 kg/m3.) 1 K
Help 3 attempts left Check my work Be sure to answer all parts. Report problem points...
Help 3 attempts left Check my work Be sure to answer all parts. Report problem points How many moles are contained in each number of grams of table sugar (C211,201 molar mass 342.3 g/mol)? Enter your answer in scientific notation. Hint a. 0.650 g b . 8.60 g Solution eBook a 10 mol Guided Solution b. 10 mol Print References
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...
2 attempts left Check my work Be sure to answer all parts. A biochemical engineer isolates a bacterial gene fragment and dissolves a 16.0-mg sample in enough water to make 30.0 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C. (a) What is the molar mass of the gene fragment? g/mol (b) If the solution density is 0.997 g/mL, how large is the freezing point depression for this solution (K of water = 1.86°C/m)?
We consider a hot-air balloon of mass 237 kg (basket and envelope). The spherical envelope of the balloon has a diameter of 19 m when fully inflated. To what temperature in °C) must the enclosed air be heated for the balloon to carry five standard men? Assume the surrounding air is at 20°C and is treated as an ideal gas. Use 29 g/mol for the molar mass of air. (Assume the mass of each standard man is 70 kg.) 122.83...
We consider a hot-air balloon of mass 269 kg (basket and envelope). The spherical envelope of the balloon has a diameter of 15 m when fully inflated. To what temperature in °C) must the enclosed air be heated for the balloon to carry three standard men? Assume the surrounding air is at 20°C and is treated as an ideal gas. Use 29 g/mol for the molar mass of air. (Assume the mass of each standard man is 70 kg.) 97.45...
Help 3 attempts left Check my work Be sure to answer all parts. Report problem points How many moles are contained in each number of grams of table sugar (C211,201 molar mass 342.3 g/mol)? Enter your answer in scientific notation. Hint a. 0.650 g b . 8.60 g Solution eBook a 10 mol Guided Solution b. 10 mol Print References
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...
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