Chemistry, 08.04.2020 01:20 rcetrangolo
Which of the following statements is TRUE? Which of the following statements is TRUE? Energy is given off when the attraction between two molecules is broken. Increasing the pressure on a solid usually causes it to become a liquid. Intermolecular forces are generally stronger than bonding forces. The potential energy of molecules decrease as they get closer to one another. None of the above are true.
Answers: 2
Chemistry, 22.06.2019 18:00
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]
Answers: 1
Chemistry, 22.06.2019 22:30
Which one of the following bonds would you expect to be the most polar? a) bβh b) nβh c) pβh d) alβh e) cβh
Answers: 1
Which of the following statements is TRUE? Which of the following statements is TRUE? Energy is give...
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