the pressure in a sealed can of gas is 235 kPa when it sits at room temperature 293k. if the van is warmed to 321K what will the new pressure inside the can be

The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.