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A mixture of three noble gases has a total pressure of 1.25 atm. The individual pressures exerted by neon and argon are 0.68 atm and 0.35 atm, respectively. What is the partial pressure of the third gas, helium?
Question- By submitting two hydrogen atoms on the benzene ring with methyl groups, write line-angle formulas of all constitutional isomers. You should have three and only three. Write the IUPAC (that is, systemic) name for each isomer.
How can 1-bromopropane be used to prepare each of the following
7. 0.500 g each of hydrogen, H2, and carbon monoxide, CO, are introduced into an evacuated 250. mL flask. What will be the total pressure (in atm) in the flask at 22ºC? How much of the pressure will be due to hydrogen
Chester makes 1 L of a 0.01 M HCL solution and measure the pH. Burt then adds 5.80 g of sodium chloride to Chester's solution and measures the pH. Compute the difference between the two pH values obtained.
3 solutions are mixed together to form a single solution. One contains 0.2 moles of Pb(C2H3O2)2, the second one contains 0.1 moles of Na2S, and the third contains 0.1 moles of CaCl2.
The Greek mathematician Archimedes is credited with discovering how to verify the amount of pure gold in an irregularly shaped object (e.g., a crown) by placing it in water.
How much heat is absorbed or released in the reaction of 20.0 g of NH3 with sufficient oxygen to produce NO(g) and H2O(l)? 4 NH3(g) + 5 O2(g) g? 4 NO(g) + 6 H2O(l) ?H = -1168 kJ A
a beam of 632.8 nm photons from a he-ne laser strikes a detector area of 5.0 mm2. the laser has a flux of 3.18 x 1015
potassium alum synthesized has the formula kalso42 x 12 h20 but when written as a double salt its formula is k2so4 x
Provide at least two examples to demonstrate the corrosive nature of chlorine gas.
In the following amino acid sequences, what amino acids will interact if the peptide forms an alpha-helix? Do you expect these structures to be stable. Why or why not
What is the value of the equilibrium constant for the cell reaction below at 25°C? E°cell = 0.30 V
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