Given a stock standard solution of concentration 0.200 M, calculate the volume in mL required to make up calibration standards of the following concentrations (in 25.0 mL volumetric flasks)

1.60 x 10-2 M ... mL

Hydrogen chloride gas is shipped in a container under 5,100 mm Hg of pressure that occupies 20.1 liters at 29°C. How many liters of gas would be produced at STP? 1.7 x 10-5 L 8.3 x 10-3 L 120 L 150 L

What happens to the element in a chemical reaction?

Gases emitted during volcanic activity often contain high concentrations of hydrogen sulfide and sulfur dioxide.

Why is it better to use several trials of a titration rather than one trial to determine the concentration of a solution of unknown concentration?

Anhydrous CoCl2 is blue; CoCl2•6H2O is red. When CoCl2•6H2O is heated and water is clearly being driven off, it becomes uniformly violet before turning blue. How can this be explained?

What is the definition of a common ion as it applies to Le Chatelier's principle? A) an ion that is found in a wide variety of compounds B) an ion that is present in every sample of pure water C) an ion that is found dissolved in most aqueous

Water standing in the open at 33.0°C evaporates because of the escape of some of the surface molecules.

What could explain the changes in the insect's coloration over time A. The population of the incest increased B. The color of the surroundings changed C. A new color of predator was introuduce D. Females started to prefer darker males

Compare and contrast neap tides and spring tides discuss when they occur as well as the alignment of the earth moon sun system

All of the following are true statements about heterogenous mixtures except for one. Which statement is false? A. An example of a heterogeneous mixture is muddy water. B. The particles of a heterogeneous mixture will not interact. C.