True or false.
1. all gaseous mixtures are solutions.
2. solid solutions are common.
3. vapor pressure of water is not affected by the amount salt added.
4. alloys are examples of solid solutions.
5. crystallization is a good way to purify solids.
6. salts act as an antifreeze.

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.