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If the atmospheric pressure at 30.0 km is 28.0 torr and the temperature is -44.0 °C, what is the volume of the balloon when it bursts?
imagine that you have a 6.50 l gas tank and a 4.50 l gas tank. you need to fill one tank with oxygen and the other with
A volume of 40.0 ml of aqueous potassium hydroxide was titrated against a standard solution of sulfuric acid. What was the molarity of the solution if 13.2ml of 1.50 M was needed
Chemistry The rate of a first-order reaction is followed by spectroscopy, monitoring the absorption of a colored reactant at 520 nm. The reaction occurs in a 1.09-cm sample cell
What ions and/or molecules are present in relatively large proportions in a solution of a weak base NH4OH (aq)?
New ads for the toyota Prius claim that it has saved over 1 billion gallons (2.8 x 10^9kg) of gasoline. Assuming that gasoline is 100% octane (C8H18) how much has the prius reduced emissions of carbon dioxide.
Assuming a 1.0 cm cell and a barely detectable transmittance of 99.1%, what is a reasonable lower concentration limit that one could detect of this complex ( in both mol/L and g/L)
calculate the molality of this solution (in mol solute/kg solvent).
If a eukaryotic cell were broken open and the subcellular organelles separated by ultracentrifugation, in which of the following would the citric acid cycles be found
What is the oxidation half reaction, Reduction half reaction, and overall reaction for Chloride + permanganate --->
Question- The radius of a nitrogen atom is 75 pm. What is the volume of a nitrogen atom, assuming atoms are spherical
Explain 3-A 0.421 g sample of aspirin prepared in the laboratory is dissolved in 95% ethanol, diluted with water, and titrated to a phenolphthalein endpoint with 17.3 mL of 0.114 M NaOH. What is the percent purity of aspirin in the sample?
calculate the amount of energy released per gram of hydrogennuclei reacted for the following reaction. the atomic
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