Chemistry, 25.11.2019 20:31 monicaharris3
Suppose you start with a solution of red dye #40 that is 2.3 ✕ 10−5 m. if you do three successive volumetric dilutions pipetting 3.00 ml of solution and diluting with water in a 25.00 ml volumetric flask, what is the molarity of the final dilution?
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Chemistry, 21.06.2019 22:30
Using the periodic table, complete the table to describe each atom. type in your answers.a ? b? c? d? e? f?
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Chemistry, 22.06.2019 04:00
Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.
Answers: 2
Chemistry, 23.06.2019 06:30
What happens to the glucose molecule during the process of cellular respiration? (5 points) select one: a. it gets broken down. b. it forms oxygen. c. it builds muscles. d. it uses up energy.
Answers: 3
Suppose you start with a solution of red dye #40 that is 2.3 ✕ 10−5 m. if you do three successive vo...
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