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Why is the norther hemisphere warmer during Summer Solstice that the Souther Hemisphere during Winter Solstice? and Why?
How do you think the Southern Hemisphere react if the two Hemispheres's land masses were equal? would we see a new record High? and Why?
Calculate the apparent molecular weight of the unknown hydrocarbon on the basis of the freezing-point depression experiment.
Explain what is the pH of 355.0mL of an aqueous solution containing 0.607 g of the strong acid trifluoromethane sulfuric acid(CF3SO3H)
For an aqueous solution, equimolar in both compounds, explain what volume ratio of carbon tetrachloride to water should be utilized to provide 99.0% extraction of compound X
the freezing point and boiling points of bromine br2 are -7.2degc and 58.8degc respectively. given that the heat of
Question- 3C(s) + 3H2(g) -----> C3H6(g) deltaH= 20.41 kJ; deltaS= -131.6J/K at 298K, What is the equilibrium constant at 298K for this reaction
A solid aluminum sphere has a mass of 85 g. Use the density of aluminum (2.7 g/cm3) to determine the radius of the aluminum sphere in inches. Offer only numerical value (no units).
Calculate the pH of a solution made by adding 16.0 g of sodium formate
what is the total pressure in the reaction flask at the end of the reaction? What are the partial pressures of the gases in the flask? 6A(g) + 2B(g) %u2192 2A3B(g)
The standard molar enthalpy of fusion of ice is 6.01 kJ/mol. The desities of ice and liquid water at 0 degree celcius are 0.9167 and 0.9998 g/cm3.
a 0.5123g sample molar mass 204.23gmol of khp was dissolved in about 25 ml of distilled water and titrated to the
a hot piece of silver metal 552.0gin mass was dropped into acup containing 332.8g of cold water. the final temperature
What is the kinetic energy of the emitted electrons whencesium is exposed to UV rays of frequency 1.5x10 15 Hz?
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