Two students were in chemistry class completing an assigned lab experiment. the two students were to mix 5.34g cacl2 with cuso4 to make a 6.3l solution

. complete and balance the reaction with the correct products:
cacl2 + cuso4  +

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.