Acompound with the empirical formula, ch2, has a molar mass equal to 84.2 g/mol. what is the molecular formula for the compound?

Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

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.