1.14 A sample of methane of mass 4.50 g occupies 12.7 dm3 at 310 K. Calculate the work done when the gas expands (a) isobarically against
a constant external pressure of 30.0 kPa until its volume has increased
by 3.3 dm3, and (b) isothermally by 3.3 dm3.

Aphysical change is a change in the size, shape,, or stafe of matter true or false

Organelles are 1. responsible for producing power for the cell 2. tiny structures in the cell that carry out the cell's activities 3. responsible for digestion in the cell 4. found outside of the membrane

Calculate the ratio of h+ ions to oh– ions at a ph = 6. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 6. are they the same? why or why not? record your explanation in table a. what is the concentration of h+ ions at a ph = 6? mol/l what is the concentration of oh– ions at a ph = 6? mol/l what is the ratio of h+ ions to oh– ions at a ph = 6? : 1