A solution of barium hydroxide Ba(OH) contains 4.285 g of barium hydroxide in 100.0 mL of solution. What is molarity of the solution

The air exhaled from the lungs of a smoker has a concentration of 24 ppm co. express the concentration as a percent.

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal. b. he is determining chemical properties that are sufficient to identify the metal. c. he is determining physical properties that are insufficient to identify the metal. d. he is determining chemical properties that are insufficient to identify the metal.

How many moles of oxygen gas are produced from the decomposition of six moles of potassium