Chemistry, 13.01.2021 22:00, wrightdarius78
A 20.0 mL sample of a Cu2+ solution was diluted to 250.0 mL. A
portion of this solution was found to have an absorbance of 0.15
under the same conditions that were used to generate the given
absorbance vs. [Cu2+1 graph. What was the concentration of Cu2+ ions
in the original sample?
Answers: 3
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Nitrogen dioxide decomposes according to the reaction 2 no2(g) ⇌ 2 no(g) + o2(g) where kp = 4.48 × 10−13 at a certain temperature. if 0.70 atm of no2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of no(g) and o2(g)
Answers: 2
Chemistry, 23.06.2019 01:30, yarrito20011307
Which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.
Answers: 1
Chemistry, 23.06.2019 02:30, hailee232
When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule
Answers: 1
A 20.0 mL sample of a Cu2+ solution was diluted to 250.0 mL. A
portion of this solution was found t...
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