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A chemist measures the vloumes of 1.00 mole N2 and 1.00 mol SO2 and finds they differ by 0.30 L. Which gas produced the larger vloume? Do the results contradict the ideal gas law?
a researcher requires 20l if a buffer solution with pH=4.25. How many moles of formic acid, and sodium fomate, could be dissolved in the solution to make this buffer, if none of the equillibrium concentrations should be under 0.100M?
oxidation of gaseous CIF by F2 yields liquid CIF3. Use the following thermochemical equation to calculate delta H reaction for the production of CIF3
Calculate the reflection loss when a beam of radiant energy passes through an empty quartz cell assuming the refractive index of quartz is 1.55.
Liver alcohol dehydrogenase (ADH) is relatively nonspecific and will oxidize ethanol or other alcohols, including methanol. Methanol oxidation yields formaldehyde, which is quite toxic, causing among other things, blindness
a solution is made by dissolving 25g of nacl in enough water to make 1.00 l of solution. assume that the density of the
What is the temperature at which the solution of KI will freeze if the solution contains 52.43 grams of KI dissolved in 479.1 grams of water.
What are the concentrations of a weak formic acid (HCOOH) anf formate ions (HCOO-) in a 0.350 M formate buffer, pH 4.25? (pKa = 3.75): The formic buffer is composed of weak formic acid and its formate salt
a 25.0 ml sample of 0.35m hcooh ka1.77x10-4 is titrated with 0.20 m koh. what is the ph of the solution after 25.0 ml
a galvanic voltaic cell consists of an electrode composed of magnesium in a 1.0 m magnesium ion solution and another
considering this given equation ch4 g 3 cl2 g- chcl3 g 3 hcl g determine how many grams of methane is required to
Aerosol cans have a label that warns the user not to use them above a certain temperature and not to dispose of them by incineration. Even an empty can contains residual gaseous propellant.
The sulphate ionis trapped as water-insoluble BaSO4. The quantity ofBaSO4 obtained is 0.2070g. What is the mass percent ofsaccharin in the sample of sweetener
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