Chemistry, 26.06.2019 19:00 tyneshiajones124
(a. what volume of 2.50 m lead(ii)nitrate solution contains 0.0500 mol of pb2+? ( b. how many milliliters of 5.0 m k2cr2o7 solution must be diluted to prepare 250 ml of 0.10 m solution? ( c. if 10.0 ml of a 10.0 m stock solution of naoh is diluted to 250 ml, what is the concentration of the resulting stock solution?
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Explain which group an element with the electron configuration 1s2 2s2 2p6 3s2 3p6 3d1 4s2 belongs to.
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(a. what volume of 2.50 m lead(ii)nitrate solution contains 0.0500 mol of pb2+? ( b. how many milli...
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