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When the weather is clear, air temperature in a dry region can have a significant change in temperature between night and day. In contrast, the water in a pond remains at a relatively consistent temperature even though the air temperature changes drastically. This is especially important for fish and other organisms that live in the pond. Use your knowledge of specific heat, heat energy, and heat transfer to why the air temperature changes greatly, but the water temperature remains essentially constant.
A 100.0-g sample of copper is heated from 10.0 degrees Celsius to 100.0 degrees Celsius.Determine the number of calories needed. (The specific heat of copper is 0.0921 cal/g degrees Celsius.)
Question- Calculate the pH at the equivalence point for the titration of 0.20 M aniline (C6H5NH2) with 0.20 M HCl. (Kb for aniline = 3.8 x 10^(-10))
write a balanced equation for the photosynthesis reaction in which gaseous carbon dioxide and liquid water react in the
How much heat is required to warm 227 g of ice from -44.5°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C.
Determine the activation energy (EA, in kJ/mol) of a reaction for which the rate triples upon a temperature increase from 39oC to 50oC.
The equilibrium constant K for a neutralization reaction can be symbolized as Kn. Utilizing Kw Ka, and Kb values, find out Kn for the subsequent reaction at 25° C.
Problem- I prepared a solution of 3 ml HCl, 1.2 ml AcOH and 1.8 ml EtOH and titrated it with 29.65 ml of 1 M NaOH. Then I calculated mol AcOH to be 0.011. How do I calculate mols of EtOH
How would the following modifications of the experimental procedure used in this experiment affect the mass of the precipitate collected? Indicate whether the mass would be greater than, unchanges, or less than that obtained. Briefly explain the ..
What is the difference between the molecular geometry
Consider a gas in a 1.0 L bulb at stp that is connected via a valve to another bulb that is initially evacuated. Answer the following concerning what occurs when the valve between the two bulbs is opened.
Determine the mole fraction of sodium chloride(NaCl) in the solution if this solution is formed by mixing 17.0 grams of sodium chloride NaCl in 85.0 grams of Water?
if you have a set of h-atom wave functions and wish to evaluate what would be the measured value of the electric dipole
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