Chemistry, 20.03.2020 00:02 twinchristiansp4xhd2
Nitrogen from a gaseous phase is to be diffused into pure iron at 700°C. If the surface concentration is maintained at 0.17 wt% N, what will be the concentration (in weight percent) 3.5 mm from the surface after 5.4 h? The diffusion coefficient for nitrogen in iron at 700°C is 4.0 × 10-10 m2/s.
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The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a
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Chemistry, 22.06.2019 09:30
One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)
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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
Nitrogen from a gaseous phase is to be diffused into pure iron at 700°C. If the surface concentratio...
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