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Assume your eyes receive a signal consisting of blue light, the wavelength= 470nm. The energy of the signal is 2.50x10^-14 J. How many photons reach your eyes
Draw a diagram showing the hydrogen bonding of an ammonia molecule with two other ammonia molecules. (Draw complete Lewis structures.
p4s f2g -gt pf3g what mass of f2 is needed to produce 187 g of pf3 if the reaction has a 80.1
start with 200 mg of cyclopentadiene and 300 mg of Maleic anhydride, and 375 mg of the cycloadduct anhydride is obtained: Which is the limiting recant?
if the density of water at 25.2 degree celcius is 0.997962 g/cm^3, what is the volume of liquid in mL whose mass is 20.762 g?
Determine the empirical formula of a compound that is 32.79% Na,12.90% Al with the remainder F.If the molecular mass is approximately 200 amu
Calculate the molar mass of a vapor that has a density of 1.88 g/L at 25.2 oC and 710. mmHg.
How many total moles of ions are released when the following sample dissolves completely in water. 8.47x10^-2g of Ca(NO3)2
What mass of sucrose should be combined with 464 g of water to make a solution with an osmotic pressure of 8.35 atm at 320 K? (Assume the density of the solution to be equal to the density of the solvent.)
A 493 mL sample of solution contains 33.2 g of CaCl2 Calculate the molar concentration of Cl in this solution
Give the major product of the following reaction: 1-butene with Br2 in Low concentration. I have tried 3-bromo-1-butene
what is the pH after the addition of 2.7*10-2 moles of KOH to 3.6*10-2 moles HCl if the resulting solution volume is 150mL
What is the free Zn2+ concentration if 0.020 M Zn2+ solution is mixed with an equal volume of 2.0 M NH3? Kf for [Zn(NH3)4]2+ is 4.1 × 10^8
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