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The density of germanium is 5.325g/cm3. If you made a 5nm quantum dot of germanium, Explain how many Ge atoms would it contain? Presume the dot is spherical.
Generate the equilibrium constant expressions for the following reaction. Calculate the numerical value for
Describe how you think humans detect odors and why certain substances smell the way that they do. Do not look up this information. Just provide your initial thinking on how this works
disinfection of water streams originating fromnbspreusable water plants is key in protecting environmental health.
A solution was prepared by dissolving 0.450 g MgSO4 (FW=120.363g/mol) in 0.500L of water. A 50.0 mL aliquot of this solution consumed 37.60 mL of EDTA solution in a titration. How many milligrams of CaCO3 (FW=100.089g/mol) will react with 1.00 mL ..
Analysis of water in a sediment sample at equilibrium at pH 7.00 showed [SO42-] = 2.00 x 10^-5 M and a partial pressure of H2S of 0.100 atm. Show with appropriate calculations if methane, CH4, would be expected in the sediment.
Why must we the wavelength bet set to 447nm when the FeSCN2+ solution is an orange-brown colour
How many atoms are contained in one unit cell of of this element? The atomic mass of the element is 193.5 amu.
What observed rotation is expected when a 1.28M solution of (R)-2-butanol is mixed with an equal volume of a .640M solution of racemic 2-butanol, and the resulting solution is analyzed
Calculate ?Ssurr for each of the reactions above at 25°C and 1 atm b. Determine which elements are being oxidized and which elements are being reduced in each reaction.
How can I find the pH and volume (mL) of 0.0411M KOH needed to reach the equivalence point in the titration of 23.4mL 0.0390M HNO2? The question doesn't give me a Ka or Kb value.
the concentrations of the four main individual ionic compouns are 0.48 M NaCl, 0.090 M MgCl2, 0.0250 M CaCl2 and 0.0050 M KCl. what is the total mass of salt in one liter of seawater?
A solution is prepared by dissolving 228 g of sucrose (C12H22O11) in 624 g of water. What is the vapor pressure of this solution at 30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)
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