The diagram shows water boiling at room temperature. 15 Pressure gauge Vacuum chamber 2.0 0.5 2.5 Thermometer 30 23 °C Boiling water Which relationship explains how the water can boil at room temperature? A. Lower air pressure results in a lower boiling point B. Lower air temperature results in a higher boiling point. C. Lower air pressure results in a higher boiling point. D. Lower air temperature results in a lower boiling point.

Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]