what is the pressure of 50dm3 cylinder with 25 kg compressed nitrogen gas at 600k?
1pa =1j. m-3; r=8.314 j. mol-1.k-1

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

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.

Match the term to its description match term definition chemical energy a) internal energy caused by vibrations of atoms and molecules electrical energy b) electromagnetic energy that travels in waves radiant energy c) the movement of an electrical charge thermal energy d) potential energy stored in the bonds between atoms