A 0.500 g sample of phosphorous vapor exerts a pressure of 550. torr in a 73.1 mL container at 489∘C. What is the molar mass?

At a temperature of 15 degrees C, a quantity of oxygen has a volume of 250 ml. If it's temperature is raised to 45 degrees C, what will it's volume be?

Which of the following group 7A elements is the most reactive? A. chlorine B. iodine C. fluorine D. bromine

How many milliliters of 4.00 m hcl (aq) are required to react with 2.75 g of zn (s) ?

Why does water wet glass?

What is an exotoxin?

An oxidation-reduction reaction is also known as a redox reaction. What is one way you could tell that a redox reaction has occurred? a. when one substance transfers electrons to another. b. when a substance reacts with oxygen. c.

How many atoms are there in 2.59 mol of carbon monoxide (CO) ?

What is 5.06 grams of oxygen in atoms

A 8-kg plastic tank that has a volume of 0.18 m3 is filled with liquid water. Assuming the density of water is 1000 kg/m3, determine the weight of the combined system.

At 25 ∘c, kp = 25 for the reaction h2 (g) + i2 (g) ⇌2hi (g). at equilibrium, the partial pressure of both h2 and i2 is 0.296 atm. what is the partial pressure of hi at equilibrium?