Chemistry, 03.04.2020 23:39, naomijamieson88
Hydrogen gas generated by the reaction of zinc and hydrochloric acid is collected via water displacement in an inverted graduated cylinder. THe pressure of the gas collected at 23oC is 99.750 kPa. If the reading from the gas collection cylinder is 0.750 L, how many moles of dry hydrogen were collected? The water vapor pressure at 23oC is 2.809 kPa.
Answers: 1
Chemistry, 22.06.2019 00:10, scottbrandon653
Think about how you can use le chatelier’s principle to find possible solutions to the design problem. describe at least two ways to increase the yield (amount) of ammonia based on this principle.
Answers: 2
Chemistry, 22.06.2019 18:00, kingamir
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
Hydrogen gas generated by the reaction of zinc and hydrochloric acid is collected via water displace...
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