What is the number of moles in 9.63 l of h2s gas at stp?

1. You wish to make a 0.325 M hydrochloric acid solution from a stock solution of 3.00 M hydrochloric acid. How much concentrated acid must you add to obtain a total volume of 50.0 mL of the dilute solution? in ml 2. In the laboratory you dilute 4.

Which of the following decrease when an object becomes colder? a. chemical energy b. thermal energy c. elastic potential energy d. nuclear energy

What is the balanced equation for the reaction of graphite (carbon) with oxygen to produce carbon monoxide?

Phosphoric acid reacts with water to yield dihydrogen phosphate ions and hydronium ions: h3po4+h2o⇌h2po4-+h3o + identify the conjugate acid-base pairs.

An uncharged atom of boron has an atomic number of 5 and an atomic mass of 11. how many protons does boron have?

A reaction is in equilibrium as shown: a + b c + d. calculate the equilibrium constant if the final concentrations stabilize at: a = 9.60 m b = 10.0 m c = 4.00 m d = 4.00 m 0.167 0.408 2.45 5.99

When 10 liters of a gas at 1 atm is compressed to 3 liters at constant temperature, what property of the gas changes?

What happens to the particles of a substance when thermal energy is added to the substance? A.) it's particles do not vibrate at all. B.) it's particles move faster. C.) it's particles move closer together. D.). It's particles move slower.

Suppose that you drop three objects into a glass of water: a piece of styrofoam, a piece of oak, and a gold ring. Which float, and which sink? density of styrofoam: 0.005 density of gold ring: 19.32 density of oak: 0.70

How many molecules following formula 3Al2 (SO4) 3