A sample of hydrogen gas occupies 1.875L at STP, how many moles of gas are present

The total pressure inside a 1.62 cylinder kept at 35°C is 1.15 atm. If the volume of the cylinder drops to 0.74 L and the temperature remains the same, what is the new pressure inside the cylinder?

The density of ethanol is 0.789g/ml at 20°c. find the mass of a sample of ethanol that has a volume of 150.0 ml at this temperature.

What happens to the conductivity of water when a base is dissolved in it

Which of these is a producer? Choose all the are true. (3 correct answers) Group of answer choices Water Carbon Dioxide Dirt Sunlight Oxygen Food

The idea that all living things are made up of cells is considered scientific law. This means the idea a) is an emerging scientific idea that has a logical explanation. b) has been tested with similar results at least twice.

How will increasing the pressure on the system affect this equilibrium reaction? 2H2 (g) + O2 (g) - > 2H2O (g)

What are small round structures in the cell that breaks down large food particles into smaller ones

A balloon has a volume of 2.5 L and contains 0.100 moles of Helium. Another balloon has a volume of 5.0 L. They are at the same temperature and pressure. How many moles of gas does the second balloon contain?

Why is it important to that the solid be dry before the final mass measurement?

What is 0.00055030 in Scientific form?