An insulated piston-cylinder device contains 200 L of air at 249 kPa and 25 °C. A paddle wheel rotates until the temperature is 480 °C. During the process, the pressure is keeping constant. Determine the work done by the paddle wheel (kJ). Use property tables to solve the problem.

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0

Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?