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what is steam distillation and why is it a preferred technique to purify high boiling liquids that are water insoluble?
NH3(Ammonia ) is widely used in many household cleaners and as a fertilizer. Calculate How much ammonia (in units of mol) is produced when 7.8 mol of H gas react with an excess of N gas.
What are the principal natural sources of hydrogen? What are the principal methods for the commercial preparation of hydrogen?
Write the net ionic equations for the reactions.
What is the pH of a solution prepared by mixing 200 ml of 0.1 M HCl with 300 ml of 0.1 M sodium acetate and diluting the mixture to 1 L?
to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
Explain why the rates of diffusion of nitrogen gas and carbon monoxide are almost identical at the same temperature.
Use the Nutritional information on the food bag to calculate the calories per gram? How does this information compare to your information? How do you explain the discrepancy? How could you do the experiment differently to get a more accurate value..
In IR spectroscopy does the position of the stretch of the oxygen-hydrogen bond in alcohols depend on the concentration of the alcohol?
A typical aspirin tablet contains 325 mg of acetylsalicylic acid ( HC9H7O4). Calculate the pH of a solution that is prepared by dissolving five aspirin tablet(s) in one cup (237 mL) of solution. Assume the aspirin tablets are pure acetylsalicylic ..
Which description best characterizes the length of a hydrogen bond between water molecules?
Calculate the potential of a platinum electrode immeresed in solution buffered to a pH of 6.50 and saturated with H2
A sample of hydrogen gas occupies 15.8 L at STP. How many moles of the gas are present?
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