A certain gas is known to have a pressure of 9 psi. We are asked to take measurements using two different sensors. These are the results that we obtained after measuring the pressure of the gas 7 different times. Sensor 1: 9.8 10.0 10.3 9.7 9.9 10.1 9.8 Sensor 2: 9.3 9.5 8.6 9.0 8.9 9.2 8.5

Apatient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused this symptom?

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.