Calculate the ratio of h+ ions to oh-ions at a ph = 6.
find the concentration of h+ ions to oh-ions listed in
table b of your student guide. then divide the h+
concentration by the oh-concentration. record this
calculated ratio in table a of your student guide.
compare your approximated and calculated ratios of h+
ions to oh-ions at a ph = 6. are they the same? why or
why not? record your explanation in table a.

Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.