Approximate frequency of a photon
What is the approximate frequency of a photon having an energy 4.85 X 10-19 J? (h = 6.63 x 10-34 Jxs)
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When 25.0mL of .500M H2SO4 is added to 25.0mL of 1.00M KOH in a coffee cup calorimeter at 23.50 degree Celcius, the temperature rises to 30.17 degree celcius. Calculate ethalpy of this reaction.
A municipal bond carries a coupon rate of 7% and is trading at par. A corporate pays a rate of 10%at what marginal tax rate would an investor be in deferent between these two bonds?
If the titrant has a molarity of 0.2000 M and there are 50.00 mL of analyte present, what is the molarity of the analyte?
A compound is 40.0 , 6.70 , and 53.3 by mass. Assume that we have a 100.- sample of this compound.The molecular formula mass of this compound is 180 . What are the subscripts in the actual molecular formula?
Write a 200 word essay in any style and identify and discuss three key features associated with the combustion of polymeric materials or compounds that are relevant to the safety.
If you buy a 6.5% coupon (assume semi-annual payments), 25-year bond today when current market rates are 5.4%, and you own this bond for 5 years and sell it when current market rates are 7%, what will be the gain or loss in the price of this bond
The neutrons from one treatment source have an average velocity of 3.1 x 10^7 m/s. If the velocities of individual neutrons are known to within 2% of this value, what is the uncertainty in the position of one of them?
If the pressure increases to 800. torr, how many moles of gas were added to the container? Assume a constant-volume container.
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How would you evaluate these species based on the phylogenetic species concept specifically? E.g., what does a branch on a tree mean?
a) What percentage of the capture fruit flies demonstrated heterozygosity for MDh? b) What percentage demonstrated type B? type A?
Dr. Oz claims that his new "miracle cure" can eliminate cancer without chemotherapy. When a first-year graduate student at Texas Tech conducts a study
Analyze a cross and identify non-Mendelian pattern of inheritance in non-allelic genes (normal interaction vs epistasis).?
Question: Which combination of properties of a planet would cause gases to escape most easily?
How do the notions of allopatric vs. sympatric speciation differ from each other. Which one is more accepted than the other, and why?
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