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Consider the transition from the energy levels n = 3 to n = 6. What is the wavelength associated with this transition, in nm?
In what spectral region does this transition occur?
Is energy absorbed or released for this transition?
A piece of metal of mass 13 g at 103?C is placed in a calorimeter containing 53.5 g of water at 21 ?C. The ?nal temperature of the mixture is 57.2 ?C. What is the speci?c heat capacity of the metal.
the following reaction will be balanced in a acidicsolution mno-4 h2c2o4 --gt mn2 co2awhat is one of the balanced
What assumption did you make about the reaction of KMnO4
an average cup of coffee contains about 125 mg of caffeine cahronqoz. if a student drinks 5 cups of coffee before their
The increase in volume is due to the H2 gas created. 50 g of tin (Sn) is 0.421 moles. That is also the number of moles of H2 that are created. Use tha ideal gas law to compute the added volume due to that gas.
How many minutes is required for sunlight to travel from the Sun to Earth. (Assume the Sun is 93,000,000 miles from Earth and that sunlight travels at 1.86 x 105 miles per second.) how do you work this to solve.
show the path an electron takes when orbiting an atom describe regions of space in which one is most likely to find an electron.
The rate constant of a reaction is 4.7 10-3 s-1 at 17°C and the activation energy is 33.6 kJ/mol. What is the value of k at 75°C.
magnesium hydroxide is used in several antacid formulations. when it is added to water it dissociates into magnesium
What is the molarity of a sodium hydroxide solution if 25.0 mL of this solution reacts exactly with 22.30 mL of 0.253 M sulfuric acid?
Some students observe a low-boiling fraction around 40 degrees C during the simple distillation of producing t-amyl chloride from t-amyl alcohol via a unimolecular nucleophilic substitution reaction.
Although that much is obvious, you take a quick look at the drug info app in your smartphone and find the chemical structure formula shown below.
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