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How much heat (in kJ) is evolved in converting 1.00 mole of steam at 145 C to ice at 0 C)? (The heat capacity of ice is 2.09 J/g C and the heat of vaporization of water is 32.9 kJ/mol)
If 0.176 moles of Mg have combined with 0.220 moles of O, what is the empirical formula of the product?
a .50 g sample of vegetable oil is placed in a calorimeter when the sample is burned 18.9kJ are given off what is the caloric value of the oil.
As the sample descended, the water pressure compressed the balloon and reduced its volume. When the pressure had increased to 75.0 atm, what was the volume of the sample? Assume that the temperature was held constant.
Predict and explain the order of elution (fastest to slowest) of benzoic acid , biphenyl, phenyl acetate and benzyl alchol from an alumina column
one can of soup contains 305 grams of soup. The soup contains .885 grams of salt. What percent of the soup is salt
A batch of 5 kg of food product has a moisture content of 150% dry basis. Calculate how much water must be removed from this product to reduce its moisture content to 20% wet basis
eject electrons from a mixed alkali metal photocathode, what is the longest wavelength in nm of light necessary to eject these electrons by the photoelectric effect?
A reaction has molar entropy change of -15 J/mol and molar enthalpy change of -12kJ/mol. What is the temperature requirement for this reaction to be spontaneous
if your spectrophotometer can measure absorbance up to 1.5, what is the max concentration of nadh that your can measure
calculate the volume in mililiters (mL) of 6 M NaOH needed to make 500 mL of a 0.100 molar (M) NaOH solution.
Draw the skeletal structure of 1-isopropyl-3-methylcycloheptane. Please explain, I am having trouble grasping this concept.
What is the molarity of a solution if 4.50 g NaF is dissolved in enough water to make 250.0 mL of solution?
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