A gas is heated from 263K to 308K. The volume is increased from 24.0L to 35.0L. If the original pressure was 1.00 atm, what is the new pressure? a) 1.08 atm
b) 0.80 atm
c) 0.78 atm
d) 0.59 atm

What conclusion can you draw from this experiment about the components of the black ink?

Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ

How many grams of sodium chloride are in 250ml of a 2.5m naci solution