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PART 1
Using the ideal gas equation, show that Helium is less dense than air.
PART 2Calculate the mass of Helium in a balloon at atmospheric pressure if the volume of Helium in the balloon is 1dm3
When choosing the most 'basic atom', or the atom that is protonated first, I find it extremely difficult to decide what has priority over
the difference between E and Z formations for organic molecules and how to establish priority according to the Cahn-Ingold-Prelog rules.
Question- How many possible trinucleotides are there that contain a uracil base (U), and two cytosine bases (C)
What patient issues might arise when working in an institutional pharmacy setting?
suppose you chose phenolphthalein , which changes color at the end point from colorness(acidic) to pink at pH8.5 .Would you need the same , more or less volume of NaOH in the back-titration?
question xenon gas is released during a certain chemical reaction and pushes back the atmosphere with a change in
A 4.78 L sample of H2O(g) reacts at a temperature of 375°C and a pressure of 692 mm Hg. How many grams of NH3 can be produced?
Explain how can trees aggravate air pollution. Define what are the factors that have changed the role of trees in this regard. Isoprene and terpenes are emitted by trees; explain why are these VOC'S particularly important
Problem- The standard free energy of activation of one reaction A is 94.80 kJ mol-1. The standard free energy of activation of another reaction B is 78.50 kJ mol-1. Assume a temperature of 298 K and 1M concentration. By what factor is one reaction..
Determine the zodiac sign for the date entered. Keep asking until the user enters zero for the month. For your convenience, you only need to process three: Aries March 21 - April 19 Taurus April 20 - May 20 Gemini May 21 - June 20 YOU MUST write a fu..
the following is a redox reaction that occurs in an alkaline batteryzn oh- ----gt znoh21. assign oxidation numbers to
How much heat is required to convert 27.0 grams of ethanol at 28 degrees celcius to the vapor phase at 78 degrees celcius?
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