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Compute the molality of a solution containing 327 g glucose(C6H12O6) dissolved in 1.52 L of water. (Assume a density of 1.00 g/mL for water.)
Determine the pressure of a gas using the ideal gas law - Calculate the pressure inside the vessel after all the dry ice has been converted to CO2 gas.
Why don't we observe the deBroglie wavelength of everyday macroscopic objects (such as a moving car or a thrown baseball)? The wavelength is too small relative to the size of macroscopic objects to be observed.
the lead in lead pencils is actually almost pure carbon, and the mass of a period mark made by a lead pencil is about 0.0001g. How many carbon atoms are in the period.
Lipitor blocks production of chlosterl in the liver. In addition to this reduction of the serum level of cholsterol, HDL acts to remove LDL from the bloodstream. How might this occur?
gaseous CO2 can react with H2O and affect the pH of the solution. Write the balanced chemical reaction that occurs. Use this reaction to describe why solutions of distilled water will test slightly acidic.
Consider 25.0 g of water at 21.7°C that are mixed with 25.0 g of water at 43.3°C in a foam cup calorimeter. The equilibrium temperature reached was 30.4°C.
Would you expect to find more dissolved oxygen in ocean water around the Northern latitudes or in ocean water close to the equator?
a gas has a volume of 1.75 L at -23 degrees Celsius and 150 kPa at what temperature will the gas occupy 1.30 L at 210 kPa
Carbon monoxide detectors sound an alarm when peak levels of carbon monoxide reach 100 parts per million (ppm). This level roughly corresponds to a composition of air that contains 400,000 micrograms per cubic meter of air.
In a beaker of boiling water, there are many gas bubbles forming throughtout the liquid. What gas comprises the bubbles.
When determining the effective nuclear charge for a 1s electron, Slater's rules dictate that the other 1s electron must have a value of 0.30 not 0.35. Why?
A) Calculate the molar solubility of Ni(OH)2 when buffered at pH=8.0 B) Calculate the molar solubility of Ni(OH)2 when buffered at pH=10.0 C)
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