Chemistry, 27.11.2019 05:31, Brainly264
Astudent is asked to determine the molarity of a strong base by titrating it with 0.250 m solution of h2so4. the students is instructed to pipet a 20.0 ml portion of the strong base solution into a conical flask, to add two drops of an indicator that changes at ph = 7, and to dispense the standard h2so4 solution from a buret until the solution undergoes a permanent color change. the initial buret reading is 5.00 ml and the final reading is 30.00 ml at the equivalence point. which procedural error will result in a strong base molarity that is too high? using 4 drops of indicator rather than the recommended 2 dropsusing a buret with a tip filled with air rather than the h2so4 solutionusing an indicator that changes at ph = 5 rather than at ph = 7using a conical flask that contains several drops of h2o
Answers: 2
Chemistry, 22.06.2019 09:00, tbiles99
What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.
Answers: 1
Chemistry, 22.06.2019 09:10, GreatBaconGamer
Which class of molecules functions as chemical signals? hormones water carbohydrates proteins
Answers: 1
Chemistry, 22.06.2019 14:00, jivsf
The two naturally occurring isotopes of chlorine are 35cl (34.969 amu, 75.77%) and 37cl (36.966 amu, 24.23%). the two naturally occurring isotopes of bromine are 79br (78.918 rm amu, 50.69%) and 81br (80.916 amu, 49.31%). chlorine and bromine combine to form bromine monochloride, brcl. 1. how many peaks will be present in a mass spectrum for brcl? the four combinations of molecule possible given these four isotopes are: 81br37cl, 81br35cl, 79br37cl, and 79br35cl. 2. what are the masses of the four different brcl molecules? express the masses using six significant figures, in decreasing numeric order (highest to lowest), separated by commas.
Answers: 3
Astudent is asked to determine the molarity of a strong base by titrating it with 0.250 m solution o...
Mathematics, 30.06.2021 19:20
Mathematics, 30.06.2021 19:20
History, 30.06.2021 19:20
Mathematics, 30.06.2021 19:20
Mathematics, 30.06.2021 19:20