A 25.0 L tank of nitrogen is at 35.0oC with an internal pressure of 125 atm. How many moles of gas does the tank contain? Give your answer with 3 sig figs.

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.

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?

Rays from the sun are not considered matter true or false