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In the following experiment, a coffee-cup calorimeter containing 100. of is used. The initial temperature of the calorimeter is 23.0 . If 6.80 of is added to the calorimeter, what will be the final temperature of the solution in the calorimeter? The heat of solution
hfcs hydrofluorocarbons are replacing cfcs chlorofluorocarbons because the c-h and c-f bonds are stronger than c-cl
Determine the empirical formula of each of the following compounds. Type your answer using the format CH4 for CH4 and list the elements in the same order as they are mentioned in the problem.
When operational in the determination of the calorimeter constant, a DC power source reads 3.60 volts and 2.65A. The resulting thermogram has a slope of 0.0438 degrees C/
An astrology-loving friend hypothesizes that people born in that week like horror movies more than other genres of movies. You decide to use the scientific method to test this hypothesis.
5.00 g of SO2 and 5.00 g of CO2 were placed in a 750.0 mL container at 50.0 °C. What is the partial pressure of CO2 in the container?
A water sample has a pH of 8.21 and a total calcium concentration of 143 ppm. What is the total alkalinity of the water?
Using the inverse square law of radiation, what Geiger counter reading would you get for a radioactive material when you are 3 feet from the source (assume an initial reading of 6300 R at a distance of 1 foot from the source)
Calculate the difference between its molar Gibbs energy and that of an ideal gas in the same state.
Attempting to recrystallize a compound but it won't dissolve in boiking hexanes and while it readily dissolves in boiling ethyl acetate, no crystals are formed upon cooling. What is the problem and what would be your next choice of a single solven..
For each of the following molecules, predict their geometry. State whether the compound is polar and if so, why
tryptophan in the environment was exhausted, the bacteria started to excrete a metabolite on the tryptophan biosynthetic pathway. why didnt the bacteria excrete the metabolite before exhausting the environmental tryptophan?
A sample of gas has a temperature of 0 celsius and a volume of 453 m. At constant pressure, the temperature is raised to 100Celsius. What is the new volume
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