A 25.0 ml bubble is released from a driver's air tank at a pressure of 4.0 atm, and a temperature of 11 degree Celsius. What is the volume of the bubble when it reaches the ocean surface, where the pressure is 1.0atm and the temperature is 18 degree Celsius?
1. When the starting temperature of the balloon was 18 degree Celsius, then what final temperature is required to raise the volume of a hot air balloon from 960 h to 1200 h?
2. What is the total pressure in atmosphere when a tank contains nitrogen gas at 0.75 atm, methane at 500 torr, oxygen at 160 mmHg and helium at 7.0 atm.
3. At STP, determine the volume of 6.26 moles of oxygen gas?
4. Determine the concentration in mass/mass % of a solution prepared from 420.0 g of water and 80.0 g sugar?