I-131(T= 8.05days) is a product of Uranium-235. If the fission yield is 0.50%: 1. Determine the mass of Uranium-235 that needs to be used so as to obtain 7.4 ×10^10 Bq of I-131 after 2 days of irradiation.
2. What will be the radioactivity of the radionuclide 2 days after irradiation? Take effective area of the fission of Uranium-235 to be 577 barns and the available neutron flux to be 10^12 n/cm^2/s

In an oxidation-reduction reaction, oxidation is what happens when a reactant

In an energy pyramid, which level has the most available energy?

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]