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Draw resonance structures for 9-(hydroxymethyl)anthracene. Is it possible for all three rings to simultaneously have bensenoid character?
If 18.4 mL of 0.800 M~rm HCl solution are needed to neutralize 5.00 rm mL of a household ammonia solution, what is the molar concentration of the ammonia?
a gas mixture with a total pressure of 770 mmHg contains each of the following gases at the indicated partial pressures: CO2, 122 mmHg; Ar, 209 mmHg; and O2, 191 mmHg. The mixture also contains helium gas. what is the partial pressure of the heliu..
51.1 g of a substance X dissolves in enough water to make 0.754 L of a 0.579 M solution. Calculate the molar mass of X in g/mol
Exactly 34.42 mL of 0.1013 M NaOH is used to titrate a 25.00 mL sample of H2SO4. What is the concentration of the sulfuric acid?
A beaker with 1.70×102 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 6.20 mL of a 0.490 it M HCl solution to the beaker. How much wi..
Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that freezes at -14.5 C?
A gas has a volume of 150 ml when its pressure is 0.947 atm. What will the volume of the gas be at a pressure of .987 atm, if the temperature remains constant
If 10 g of C react with 115 g of O2 according to the equation C + O2 → CO2, how many g of O2 will remain unreacted?
What weight of sulfuric acid will be needed to react completely 35.5g of ammonia in the production of ammonium sulfate.
At a particular temperature, Kp = 0.25 atm for the reaction N2O4(g) 2NO2(g) a. A flask containing only N2O4 at an initial pressure of 4.5 atm
The efficiency of light source = energy of visible light/ total energy 7. What is the relationship between light intensity and distance from the source?
C3H8 + 5O2 reacts to yield 3CO2 + 4H2O +488 kJ What is the heat released if 2.5 moles of C3H8 reacts completely with oxygen?
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