A gas is heated to 80°C and has a pressure of 1350 mmHg. If the container expands to hold a volume of 800 mL, what was the volume of the gas, (in litres), at a temperature of 50°C and 900 mmHg pressure?

Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.

How many mmols of tris-hcl are there in 100 ml of a 100 mm tris-hcl buffer solution at ph 8.1? note that the 100 mm refers to the sum of tris and tris-hcl concentrations?

If two identical atoms are bonded,what kind of molecule is formed