Chemistry, 13.11.2019 21:31 ieshaking28
Stu dent has finished his titration, and he comes to you for with the calculations. he tells you that 20.00 ml of unknown concentration hbr(aq) required 18.45 ml of 0.3500 m naoh(aq) to neutralize it, to the point where thymol blue indicator changed from pale yellow to very pale blue. calculate the concentration (molarity) of stu's hbr(aq) sample. kemmi major also does a titration. she measures 25.00 ml of unknown concentration h_2so_4(aq) and titrates it with 0.1000 m naoh(aq). when she has added 42.18 ml of the base, her phenolphthalein indicator turns light pink. what is the concentration (molarity) of kemmi's h_2so_4(aq) sample?
Answers: 1
Chemistry, 21.06.2019 22:00
Bohr's model could only explain the spectra of which type of atoms? single atoms with one electron single atoms with more than one electron bonded atoms with one electron bonded atoms with more than one electron
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Chemistry, 22.06.2019 00:00
Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one
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Which formula can be used to calculate the molar mass of ammonia (nh3)? molar mass of n + molar mass of h 3 × molar mass of n + molar mass of h molar mass of n + 3 × molar mass of h 3 × molar mass of n + 3 × molar mass of h
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Chemistry, 22.06.2019 22:30
Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.
Answers: 1
Stu dent has finished his titration, and he comes to you for with the calculations. he tells you th...
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