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Thermodynamics offers a way to interpret everyday occurrences. If you live in northern climates, one common experience is that during early winter, snow falls although then melts when it hits the ground. Both the formation and the melting happen spontaneously. How can thermodynamics define both of these seemingly opposed events?
The optical rotation of a sample composed of only D-lactose is determined [a]abs = 0.99 degrees. [a]D is known to be 52.3 degrees for D-lactose. If the cell path length was 0.8 dm and the concentration of D-lactose in the sample was 0.17 g/mL,
how can we calculate the weight of CaCO3 per 10^6 ml unknown sample.the weight of CaCO3 per 25 ml of unknown sample is 5.71*10^-3
Cyclopropane, C3H6, is an anesthetic given by inhalation. How many grams are in 0.30 mole of cyclopropane? The sedative Demerol hydrochloride has the formula C15H22ClNO2. How many grams are in 2.2x10^-2 mole of Demerol hydrochlorde?
The density of concentrated hydrochloric acid is 1.19 g/mL and 37.5% HCl by weight. Describe how you would prepare 500mL of a 0.25M solution of HCl.
How many grams of water are required to prepare a 1 .50 m NaCl solution using 45.5 grams of NaCl?
a pharmaceutical preparation made with ethanol c2h5oh iscontaminated with methanol ch3oh. a sample of vapor above
Air is 21% by vol oxygen. Oxygen has a density of 1.31 g/l what is the volume in liters of a room that holds enough air to contain 75kg of oxygen
Calculate the molarity of a sodium chloride brine solution that exhibits a density of 1.13 g/mL and a mass percent of 17.7% at room temp.
Which of the following equations represents the proper net ionic equation for the complete neutralization reaction between the weak acid HClO2 (aq) and the strong base KOH (aq)?
What total volume of ozone measured at a pressure of 21.0 {\rm mmHg} and a temperature of 227 {\rm K} can be destroyed when all of the chlorine from 12.0 {\rm g} of {\rm{CF}}_3 {\rm{Cl}} goes through ten cycles of the above reactions
The earth has a radius of about 6.35 *10^6 m and a mass of 5.98 *10^24 kg. What would be the radius if the earth had the same mass density as matter in a nucleus
the I2 sublimes and gasses iodine heptofluride forms 3.2x10^2 torr of T2 and 4.1 g of solid I2 are put in to a 2.5 L Container at 2.5x10^2 K and container is heated to 5.5 x 10^2 K A what is the final pressure in atms. what is the partial pressure..
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